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.vn-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;height:3rem;margin:0 auto;max-width:77.5rem;z-index:1}@media(min-width:64rem){.vn-wrapper .vn-container{height:4.6875rem}}.vn-wrapper .vn-container.lite{max-width:100%}@media(min-width:64rem){.vn-wrapper .vn-container.lite{height:3.5rem}}.vn-wrapper .vn-menu-btn{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:none;border:0;color:#fff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;height:100%;line-height:1;padding:0}.vn-wrapper .vn-menu-btn:not(.lite){margin-right:1.166875rem}@media(min-width:64rem){.vn-wrapper .vn-menu-btn:not(.lite){margin-right:0}}.vn-wrapper .vn-menu-btn i{font-size:2.25rem;width:2.25rem;overflow:hidden}.vn-wrapper .vn-menu-btn svg{fill:currentColor;pointer-events:none}.vn-wrapper .vn-menu-btn.vn-search 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.vn-logo-container .vn-logo img:not(.lite){width:7.25rem}}.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:.875rem}@media(min-width:64rem){.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:1.4375rem}}.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:.9375rem}@media(min-width:64rem){.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:1.5625rem}}.vn-wrapper .vn-links{background:#f9f9fc;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:calc(100vh - 3rem);left:-140vw;overflow:auto;padding:.5rem;position:fixed;top:3rem;-webkit-transition:left .5s ease;transition:left .5s ease;width:100%;z-index:100}@media(min-width:37.5rem){.vn-wrapper .vn-links{max-width:25rem}}@media(min-width:64rem){.vn-wrapper .vn-links.lite{height:calc(100vh - 3.5rem);top:3.5rem}}@media(min-width:64rem){.vn-wrapper .vn-links:not(.lite){background:none;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;height:100%;left:0;max-width:100%;overflow:visible;padding:0;position:relative;top:0}}.vn-wrapper .vn-links.open{left:0}.vn-wrapper .vn-links.open.vn-slide-out{left:-100vw}@media(min-width:37.5rem){.vn-wrapper .vn-links.open.vn-slide-out{left:0}}.vn-wrapper .vn-links .vn-search-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;height:3rem;margin-bottom:.25rem;-webkit-box-ordinal-group:0;-ms-flex-order:-1;order:-1}@media(min-width:64rem){.vn-wrapper .vn-links .vn-search-wrapper:not(.lite){background:#fff;border:1px solid #c6cedb;border-radius:5px;opacity:0;-webkit-box-ordinal-group:2;-ms-flex-order:1;order:1;position:absolute;right:2.8125rem;top:.8125rem;width:38%;-webkit-transition:all .3s ease;transition:all .3s ease;visibility:hidden}.vn-wrapper .vn-links .vn-search-wrapper:not(.lite).vn-open{visibility:visible;opacity:1}.vn-wrapper 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.vn-menu-section{left:0;opacity:1;visibility:visible}}@media(min-width:81.25rem){.vn-wrapper .vn-links .vn-links-list:not(.lite)>li:not(:nth-child(7)){margin-right:1rem}}.vn-wrapper .vn-links .vn-menu-section{background:#f9f9fc;height:calc(100vh - 3rem);right:-140vw;overflow:auto;padding:0 1.5rem 6.25rem 1.5rem;position:fixed;top:3rem;-webkit-transition:all .5s ease;transition:all .5s ease;width:100%;z-index:10}.vn-wrapper .vn-links .vn-menu-section.lite{height:calc(100vh - 3.5rem);top:3.5rem}@media(min-width:37.5rem){.vn-wrapper .vn-links .vn-menu-section{max-width:25rem;left:-140vw;right:auto}.vn-wrapper .vn-links .vn-menu-section.open{left:0;right:auto}}.vn-wrapper .vn-links .vn-menu-section.open{right:0}.vn-wrapper .vn-links .vn-menu-section .vn-menu-section-header{-webkit-box-align:center;-ms-flex-align:center;align-items:center;border-bottom:1px solid #c6cedb;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;padding:.75rem 0}.vn-wrapper .vn-links .vn-menu-section .vn-menu-section-header h3{color:#1b1b1b;font-size:1.25rem;line-height:1;margin:0}.vn-wrapper .vn-links .vn-menu-section .vn-menu-section-header a{color:#3557ff;font-weight:400;text-decoration:none}.vn-wrapper .vn-links .vn-menu-section .vn-menu-section-header a img{margin-right:.5rem;width:.8125rem}.vn-wrapper .vn-links .vn-menu-section ul{margin:.75rem 0;list-style:none;padding:0}.vn-wrapper .vn-links .vn-menu-section ul li{font-size:1.125rem;font-weight:400}.vn-wrapper .vn-links .vn-menu-section ul li a{color:#1b1b1b;display:block;padding:.75rem 0;text-decoration:none}.vn-wrapper .vn-links .vn-menu-section ul li a:hover{color:#3557ff}.vn-wrapper .vn-links .vn-menu-section ul li hr{border:1px solid #c6cedb}@media(min-width:64rem){.vn-wrapper .vn-links .vn-menu-section:not(.lite){background:#fff;border-radius:0 0 5px 5px;border-top:0;left:-20px;margin-left:-3.75rem;max-width:none;height:auto;opacity:0;padding:1.875rem 2.875rem;position:absolute;top:4.6875rem;width:18.75rem;visibility:hidden}.vn-wrapper .vn-links .vn-menu-section:not(.lite) hr{display:none}.vn-wrapper .vn-links .vn-menu-section:not(.lite) ul{margin:0}.vn-wrapper .vn-links .vn-menu-section:not(.lite) ul li{border-bottom:1px solid #c6cedb}.vn-wrapper .vn-links .vn-menu-section:not(.lite) ul li:last-of-type{border-bottom:0}.vn-wrapper .vn-links .vn-menu-section:not(.lite) ul li.vn-see-all a{-webkit-box-align:baseline;-ms-flex-align:baseline;align-items:baseline;color:#3557ff;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:start;-ms-flex-pack:start;justify-content:flex-start}.vn-wrapper .vn-links .vn-menu-section:not(.lite) ul li.vn-see-all a img{height:.75rem;margin-right:.5rem}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1{width:60.875rem}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1 ul{-webkit-columns:4;-moz-columns:4;columns:4;-webkit-column-gap:2.875rem;-moz-column-gap:2.875rem;column-gap:2.875rem}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1 ul li:nth-child(7),.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1 ul li:nth-child(14),.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1 ul li:nth-child(21){border-bottom:0}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-3{width:35rem}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-3 ul{-webkit-columns:2;-moz-columns:2;columns:2;-webkit-column-gap:2.875rem;-moz-column-gap:2.875rem;column-gap:2.875rem}.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-3 ul li:nth-child(8),.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-3 ul li:nth-child(16){border-bottom:0}}@media(min-width:64rem)and (max-width:81.25rem){.vn-wrapper .vn-links .vn-menu-section:not(.lite).hdr-site-1{margin-left:-8.75rem}}.vn-wrapper .vn-links .vn-back{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:none;border:0;color:#3557ff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;padding:1rem 0}.vn-wrapper .vn-links .vn-back i{font-size:.75rem;margin-right:.3125rem}.vn-wrapper .vn-links .vn-actions{margin-top:1rem}@media(min-width:64rem){.vn-wrapper .vn-links .vn-actions:not(.lite){-webkit-box-align:center;-ms-flex-align:center;align-items:center;border-left:1px solid #cccce7;display:-webkit-box;display:-ms-flexbox;display:flex;margin:1.1875rem 0;padding-left:1.25rem}}@media(min-width:64rem){.vn-wrapper .vn-links .vn-actions:not(.lite).no-subscribe{border-left:none}}.vn-wrapper .vn-links .vn-actions:not(.lite).no-subscribe .vn-signin{padding-left:.9375rem}@media(min-width:64rem){.vn-wrapper .vn-links .vn-actions:not(.lite).no-subscribe .vn-signin{padding-left:0}}.vn-wrapper .vn-links .vn-actions .vn-signin{color:#3557ff;font-weight:600;padding:0 1.5rem;text-decoration:none}@media(min-width:64rem){.vn-wrapper .vn-links .vn-actions .vn-signin:not(.lite){-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#fff;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:1.0625rem;padding:0;margin:0 .9375rem;-webkit-transition:all .3s ease;transition:all .3s ease}}.vn-wrapper .vn-links .vn-actions .vn-loggedin{background:none;border:0;color:#3557ff;font-weight:600;height:3rem;padding:0 1.5rem;text-decoration:none}@media(min-width:64rem){.vn-wrapper .vn-links .vn-actions .vn-loggedin:not(.lite){-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#fff;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:0;padding:0;margin:0 1.25rem}.vn-wrapper .vn-links .vn-actions .vn-loggedin:not(.lite):before{background:url(//img.lb.wbmdstatic.com/webmd_static_vue/091e9c5e81e52376/client/img/person.59072d56.svg) 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src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/sitefronts/branding/nourish/nourish_logo.svg" alt data-v-022c3a2d></a><button class="subnav-toggle" data-v-022c3a2d><span data-v-022c3a2d><span data-v-022c3a2d>Health & Diet Guide</span></span><span class="subnav-caret" data-v-022c3a2d><i class="webmd-icon-down-arrow" data-v-022c3a2d></i></span></button><div class="subnav-content" data-v-022c3a2d><ul class="subnav-content" data-metrics-module="hdr-sub" data-v-022c3a2d><li class="subnav-chapter active" style="display:none;" data-v-022c3a2d><a class="subnav-chapter-title" href="https://www.webmd.com/diet/the-truth-about-fad-diets" data-metrics-link="1" data-v-022c3a2d>Popular Diet Plans</a></li><li class="subnav-chapter" style="display:none;" data-v-022c3a2d><a class="subnav-chapter-title" href="https://www.webmd.com/obesity/healthy-weight" data-metrics-link="2" data-v-022c3a2d>Healthy Weight Resources</a></li><li class="subnav-chapter" style="display:none;" 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class="subnav-chapter-title" href="https://www.webmd.com/diet/default.htm" data-v-022c3a2d> View Full Guide </a></li></ul></div></div><NoSsr data-v-022c3a2d></NoSsr></section></div><div class="webmd-row pane" style="" id="ContentPane30" tabindex="-1"><article class="article medref" data-chronicle="091e9c5e81e52377" data-e2e="dart-medref" data-page="1" data-module-type="dynamic-article" data-artid="091e9c5e80170f9c" style=""><script type="application/ld+json"></script><script type="application/ld+json">{"@context":"https://schema.org/","@type":"MedicalWebPage","mainEntityOfPage":"https://www.webmd.com/diet/rapid-weight-loss","lastReviewed":"04/23/2024 09:53:39","reviewedBy":{"@type":"Person","name":"Jabeen Begum, MD"},"about":"Diet and Weight Loss","datePublished":"01/30/2008 20:00:00","headline":"How to Lose Weight Quickly","dateModified":"04/23/2024 09:53:39","primaryImageOfPage":{"@type":"ImageObject","name":"1800ss_getty_rf_female_on_weighing_scale.jpg","description":"Female on weighing scale, Possible Side Effects of Long-Term Injections for BP1 Slideshow","license":"Moment RF / Getty Images","url":"https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/health_tools/side_effects_long_term_injections_bp1_slideshow/1800ss_getty_rf_female_on_weighing_scale.jpg","thumbnailUrl":"https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/health_tools/side_effects_long_term_injections_bp1_slideshow/1800ss_getty_rf_female_on_weighing_scale.jpg"},"publisher":{"@type":"Organization","name":"WebMD","logo":{"@type":"ImageObject","url":"https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/logos/webmd/web/webmd_logo_53x12.gif"}},"author1":{"@type":"Person","name":"Matthew Hoffman, MD"},"author2":{"@type":"Person","name":"Marsha Walton"}}</script><div class="inner-article-container"><header><h1>How to Lose Weight Quickly</h1></header><div class="med-wrap"><div><div class="asset-med-rev"><div class="reviewer-info" data-chronicle="091e9c5e81e52377" data-e2e="asset-medical-review" data-metrics-module="rvdby-lnk"><span class="reviewer-photo-cont"><figure><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/biographies/begum_jabeen_382x382.jpg?resize=51px:51px&output-quality=75" class="reviewer-photo"></figure></span><span class="reviewer-txt seperatorLine">Medically Reviewed by <a class="person" href="https://www.webmd.com/bio/jabeen-begum" data-metrics-link="0">Jabeen Begum, MD</a><span class="no-link"></span><span class="revDate"> on April 23, 2024</span></span></div><div class="byline"><span><span class="authors" data-metrics-module="wrtnby-lnk">Written by <a href="https://www.webmd.com/bio/matthew-hoffman" class="person" data-metrics-link="0">Matthew Hoffman, MD</a>, <span class="person">Marsha Walton</span></span></span></div></div></div></div><aside class="oncology-article-nav" data-metrics-module="cwnav-art"><ul class="nav-items desktop"><li><a href="#091e9c5e80170f9c-1-1">Losing Weight Fast</a></li><li><a href="#091e9c5e80170f9c-1-2">What Is Rapid Weight Loss?</a></li><li><a href="#091e9c5e80170f9c-2-4">Does Rapid Weight Loss Work?</a></li><li><a href="#091e9c5e80170f9c-2-5">What Are the Risks of Rapid Weight Loss?</a><div class="item-button"><a href="#"></a></div></li><li><a href="#091e9c5e80170f9c-2-7">Is Rapid Weight Loss Ever a Good Idea?</a></li><li><a href="#091e9c5e80170f9c-3-10">Rapid Weight Loss After Pregnancy</a></li><li><a href="#091e9c5e80170f9c-4-12">Rapid Weight Loss After Antidepressants</a></li><li><a href="#091e9c5e80170f9c-4-13">Rapid Weight Loss and Estrogen Levels</a></li><li><a href="#091e9c5e80170f9c-4-14">Takeaways</a></li><li><a href="#091e9c5e80170f9c-4-15">Rapid Weight Loss FAQs</a></li><li class="item-button"></li></ul></aside><div class="reading-wrapper"><div class="readtime"><span>6 min read</span></div><div id="audio-placeholder-091e9c5e80170f9c"></div></div><div class="article__body" data-metrics-module="embd-lnk"><div class="article-page active-page" data-page="1"><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-1-1">Losing Weight Fast</h2><p>"Lose 10 Pounds in 10 Days!"</p><p>"Eat as Much as You Want <span>—</span> and Still Lose Weight!"</p><p>"Drop One Dress Size a Day!"</p><p>Rapid weight loss can seem easy if you believe these advertising claims.</p><div id="art-091e9c5e80170f9c-em-image-1" class="em-mod-image" ref="art-091e9c5e80170f9c-em-image-1"> <aside data-e2e="ia-image" align="middle" class="ia-module-container ia-image landscape " data-metric-module="ia-img-soc"> <figure> <div class="main"> <img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/health_tools/side_effects_long_term_injections_bp1_slideshow/1800ss_getty_rf_female_on_weighing_scale.jpg" alt="photo of Female on weighing scale"/> </div> <figcaption> <div><h3>1800ss_getty_rf_female_on_weighing_scale</h3></div> <p class="module_description" > You may lose weight early on, but crash diets are hard to sustain. (Photo Credit: Moment RF/Getty Images) </p> </figcaption> </figure> </aside> </div><p><a href="https://www.webmd.com/diet/the-truth-about-fad-diets" data-crosslink-type="article" id="57f9ffdc-3454-41f5-9492-0df48df5a368">Fad diets</a> and weight loss supplements promise a slimmer body in no time. In the U.S. alone, consumers spend $33 billion each year on weight loss products.</p><p>Do any of these products really lead to rapid weight loss? Are they safe? And what are the risks of rapid weight loss? WebMD took a look at some rapid weight loss claims, as well as the available evidence.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-1-2">What Is Rapid Weight Loss?</h2><p>So many marketers promise "fast weight loss" that it's difficult to sort through them all. <span>A rapid weight loss program is a diet where you lose more than 2 pounds a week for several weeks.</span></p><p>Most rapid weight loss pitches fall into these categories:</p><p><strong>Starvation diets</strong></p><p>This kind of diet is exactly what it sounds like — a plan that promotes fasting and severely limits what foods you can eat. Beyoncé popularized the so-called "<a href="https://www.webmd.com/diet/a-z/lemonade-master-cleanse-diet">master cleanse</a>" diet: water, lemon juice, maple syrup, and cayenne pepper. Variations of these diets have been around since the 1950s. They often also promise "detoxification" through colonics or enemas.</p></section><section> <p><strong>Diet pills and supplements</strong></p><p>Dozens of diet supplements promise to speed up weight loss. Generally, they claim to block the absorption of nutrients, increase metabolism, or burn fat.</p><p><strong>Very low-calorie diets (VLCDs)</strong></p><p>One proven method of rapid weight loss is the medically supervised very low-calorie diet (VLCD). Most of what is known about rapid weight loss comes from studies of people on these diets. <span>VLCDs are often used before weight loss surgery and under the guidance of a doctor. They are usually recommended for 12 weeks or less.</span></p><p><span><strong>Creams and other devices</strong></span></p><p>There seems to be no end to the questionable ideas promoted in the name of rapid weight loss. Most promise to replace diet or exercise. <span>Some creams promise to aid in weight loss when used on specific body parts. Be cautious if an advertiser claims that you can "lose weight with this patch or cream," as the Federal Trade Commission has made it clear that such claims are false.</span></p></section></div><div class="article-page " data-page="2"><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-2-4">Does Rapid Weight Loss Work?</h2><p dir="ltr"><span>When it’s time to lose weight, most of us want it to happen fast.</span></p><p dir="ltr"><span>Your doctor should decide if several prescription medications that cause rapid weight loss are safe for you.</span></p><p dir="ltr"><span>Also, beware of over-the-counter weight loss products. </span>The U.S. FDA does regulate <a href="https://www.webmd.com/vitamins-and-supplements/supplement-faq">dietary supplements</a>. But it treats them like foods rather than medications.</p><p>The FDA also doesn't regulate claims made by over-the-counter weight loss products. Unlike drug manufacturers, the makers of supplements don’t have to show their products are safe or effective before selling them on the market. This means that dietary supplements do not need FDA approval before they are marketed.</p><p>In any rapid weight loss program, what really burns fat is not a pill or type of food. It's the substantial reduction of calories, combined with exercise.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-2-5">What Are the Risks of Rapid Weight Loss?</h2><p>Rapid weight loss creates physical demands on the body. Possible serious risks include:</p><ul type="disc"><li>Gallstones, which occur in 12%-25% of people losing large amounts of weight over several months</li><li>Dehydration, which can be avoided by drinking plenty of fluids</li><li>Malnutrition, which usually results from not eating enough protein for weeks at a time</li><li><a href="https://www.webmd.com/a-to-z-guides/what-is-electrolyte-imbalance">Electrolyte imbalances</a>, which can sometimes be life-threatening</li></ul></section><section> <p><span><strong>Side effects of rapid weight loss</strong></span></p><p>Other side effects of rapid weight loss include:</p><ul type="disc"><li>Headaches</li><li>Irritability</li><li>Fatigue</li><li>Dizziness</li><li>Constipation</li><li>Menstrual irregularities</li><li>Hair loss</li><li>Muscle loss</li></ul><p>The dangers of rapid weight loss increase with the time spent on the diet. Eating a no-protein diet is particularly risky.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-2-7">Is Rapid Weight Loss Ever a Good Idea?</h2><p dir="ltr"><span>Before beginning a rapid weight loss program, check with your doctor. They can provide guidance, often with the help of a dietitian, on a program that works with all of your health conditions.</span></p><p dir="ltr"><span>A </span><a href="https://www.webmd.com/diet/low-calorie-diets"><span>very low-calorie diet</span></a><span> (VLCD) may be the right choice for some people with obesity who are already facing serious health problems, such as diabetes, high cholesterol, or high blood pressure. These are people with a body mass index (BMI) greater than 30.</span></p><p dir="ltr"><span>Weight loss to attain a healthy body weight can also reduce the risk for some types of cancer, including postmenopausal breast cancer, as well as ovarian, colon, and pancreatic cancer.</span></p></section></div><div class="article-page " data-page="3"><section> <p dir="ltr"><span>But super limiting diets also come with many cautions. They are hard to stick to and can lead to other health problems. A dramatic cutback in calories can cause you to lose muscle mass as well as fat. And it slows down your metabolism — your body’s calorie-burning process.</span></p><p dir="ltr"><span>Some rapid weight loss programs cut out entire food groups. That can lead to:</span></p><ul><li dir="ltr" aria-level="1"><span>Constipation</span></li><li dir="ltr" aria-level="1"><span>Fatigue</span></li><li dir="ltr" aria-level="1"><span>Loss of bone density</span></li><li dir="ltr" aria-level="1"><span>Lower immunity</span></li><li dir="ltr" aria-level="1"><span>Hair loss</span></li></ul><p>Rapid weight loss diets can have ill effects, but so does obesity. For this reason, VLCDs are considered a reasonable weight loss option for people with <a href="https://www.webmd.com/obesity/video/obesity-risks" data-crosslink-type="video" id="276879bd-c279-4a3f-a1e0-25cd343e7e11">obesity</a> needing rapid weight loss for a specific purpose such as weight loss surgery.</p><p>VLCDs are doctor-supervised diets lasting several weeks. The meals are nutritionally balanced but expensive -- people can end up spending thousands of dollars over time. VLCDs can safely result in a loss of 15%-25% of body weight in 12 weeks. That's for those who finish the program: 25%-50% of people don't complete the program. Weight returns rapidly when the diet is stopped; most experts say it's best to take a more sustainable approach to weight loss, similar to that of regular diets.</p></section><section><pagebreak /> <p>Most people seeking rapid weight loss usually do it on their own. Often, they do it to achieve a short-term goal, such as fitting into a dress or looking good at the beach.</p><p>Starving yourself is certainly not a good idea. But if you're otherwise healthy, a brief period of extreme calorie reduction isn't likely to hurt you. You should tell your doctor what you're doing, and be sure to include protein in your diet (70-100 grams per day). Take a multivitamin, and eat <a href="https://www.webmd.com/diet/foods-rich-in-potassium">potassium-rich foods</a> (tomatoes, oranges, and bananas).</p><p>Also, remember that crash diets rarely help you achieve a sustained, healthy weight. Most people put the pounds right back on.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-3-10">Rapid Weight Loss After Pregnancy</h2><p dir="ltr"><span>Rapid weight loss after giving birth may result from the pressures of being a new parent, including sleep deprivation and being too tired to eat. </span></p></section></div><div class="article-page " data-page="4"><section> <p dir="ltr"><span>Your body burns more calories while you're breastfeeding. If you lose weight too fast, you could start producing less milk. So, it’s recommended you wait until your baby is at least 2 months old before you make a drastic cut in calories to get back to your prepregnancy weight.</span></p><p dir="ltr"><span>About 3% of people who give birth develop postpartum thyroiditis. That’s when your thyroid gland, which controls how your body uses energy, becomes inflamed. Sometimes this leads to an overactive thyroid (</span><a href="https://www.webmd.com/a-to-z-guides/overactive-thyroid-hyperthyroidism"><span>hyperthyroidism</span></a><span>). That can be accompanied by weight loss. Treatment may include beta-blockers, prednisone, or both.</span></p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-4-12">Rapid Weight Loss After Antidepressants</h2><p dir="ltr"><span>Several common antidepressants are linked to weight gain. It’s a reason many people give up on their mental health medications. Doctors may choose a prescription, such as topiramate, associated with significant weight loss.</span></p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-4-13">Rapid Weight Loss and Estrogen Levels</h2><p><span>Being overweight or obese can increase your risk of developing certain types of breast cancer. Extra body fat may increase levels of estrogen and other hormones, which can increase breast cancer risks. Losing weight can lower hormone levels, and also the risks of hormone receptor-positive breast cancer.</span></p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-4-14">Takeaways</h2><p dir="ltr"><span>Beware of fad diets, detox schemes, and magic potions that promise a slimmer you without any effort. Rapid weight loss may be the right choice if obesity is affecting your health. Work closely with your doctor and</span><a href="https://www.webmd.com/diet/what-to-know-dietitians-vs-nutritionists"><span> dietitian</span></a><span> for a weight loss plan that may include drugs, healthy foods, and exercise.</span></p></section><section><h2 class="jumplink-headers" id="091e9c5e80170f9c-4-15">Rapid Weight Loss FAQs</h2><p><span><strong>What can cause rapid weight loss?</strong></span></p><p><span>Rapid, unexplained weight loss may be caused by cancer, diabetes, thyroid disease, Crohn’s, Parkinson’s, HIV, drug abuse, or dementia. It may also be the result of mental health conditions, such as depression, anxiety, or obsessive-compulsive disorder (OCD).</span></p></section><section> <p><span><strong>When is weight loss concerning?</strong></span></p><p><span>Check with your health care provider if you lose more than 10 pounds or 5% of your body weight in less than a year without making any changes to your diet or physical activity.</span></p><p><span><strong>What is considered unhealthy rapid weight loss?</strong></span></p><p><span>Losing more than 2 pounds a week could be a threat to your health.</span></p></section></div></div><div class="related-articles" data-metrics-module="cwnav-art" data-metrics-sel="li"></div><footer><div class="pub-info-and-share-bar"><div class="article__publication-sources"><section class="asset-footer"><div class="asset-footer-top"><div class="asset-footer-buttons"><button class="sources-btn">Sources</button><button class="update-history-btn">Update History</button></div><div 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very-low-calorie diets: an update and meta-analysis.<span>”</span></p><p><i>American Family Physician.</i></p><p>Federal Trade Commission: <span>“</span>Commercial Weight Loss Products and Programs: What Consumers Stand to Gain and Lose,<span>”</span><span>“</span>Weighing the Evidence in Diet Ads.<span>”</span></p><p dir="ltr"><span>American Medical Association: “In Age of GLP-1 agonists, food choices still matter for health.”</span></p><p dir="ltr"><span>Breastcancer.org: “Hormone Levels Drop When Obese Women Lose Weight.”</span></p><p dir="ltr"><span>Cleveland Clinic: “How To Lose Weight After Pregnancy,” “Is It Bad To Lose Weight Too Quickly?” “Unexplained Weight Loss.”</span></p><p dir="ltr"><span>Johns Hopkins Medicine: “Postpartum Thyroiditis.”</span></p><p dir="ltr"><span>Mayo Clinic: “Don’t Fall for Fad Diets,” “Choosing a Weight Loss Diet That’s Right For You,” “Prescription Weight Loss Drugs.”</span></p><p dir="ltr"><span>Mt. Sinai: “Diet For Rapid Weight Loss,” “Losing Weight After Pregnancy.”</span></p><p dir="ltr"><span>NHS: “Unintentional Weight Loss.”</span></p><p dir="ltr"><i><span>Obesity Pillars</span></i><span>: “Weight-centric treatment of depression and chronic pain.”</span></p></div></div></div><div class="asset-footer-bottom"><a href="https://www.webmd.com/about-webmd-policies/about-privacy-policy" class="asset-footer-policy"> View privacy policy, copyright and trust info </a></div><div class="asset-footer-bottom-share"><div class="module module-social-share-footer" data-e2e="social-sharebar"><div class="socialshare-container" data-metrics-module="fm-shr"><div class="share-footer-container"><div class="share-text">Share</div><div class="icon-sb-footer-svg icon-sb-footer-share"><svg class="icon-sb-footer-svg" width="18" height="20" viewbox="0 0 18 20" fill="none" xmlns="https://www.w3.org/2000/svg"><path class="icon-sb-footer-svg" d="M15 20C14.1667 20 13.4583 19.7083 12.875 19.125C12.2917 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Be cautious if an advertiser claims that you can \"lose weight with this patch or cream,\" as the Federal Trade Commission has made it clear that such claims are false.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"3\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"2\" \u002F\u003E\u003Csection_header\u003EDoes Rapid Weight Loss Work?\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EWhen it’s time to lose weight, most of us want it to happen fast.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EYour doctor should decide if several prescription medications that cause rapid weight loss are safe for you.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EAlso, beware of over-the-counter weight loss products. \u003C\u002Fspan\u003EThe U.S. FDA does regulate \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-and-supplements\u002Fsupplement-faq\"\u003Edietary supplements\u003C\u002Fa\u003E. But it treats them like foods rather than medications.\u003C\u002Fp\u003E\u003Cp\u003EThe FDA also doesn't regulate claims made by over-the-counter weight loss products. Unlike drug manufacturers, the makers of supplements don’t have to show their products are safe or effective before selling them on the market. This means that dietary supplements do not need FDA approval before they are marketed.\u003C\u002Fp\u003E\u003Cp\u003EIn any rapid weight loss program, what really burns fat is not a pill or type of food. It's the substantial reduction of calories, combined with exercise.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003EWhat Are the Risks of Rapid Weight Loss?\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ERapid weight loss creates physical demands on the body. Possible serious risks include:\u003C\u002Fp\u003E\u003Cul type=\"disc\"\u003E\u003Cli\u003EGallstones, which occur in 12%-25% of people losing large amounts of weight over several months\u003C\u002Fli\u003E\u003Cli\u003EDehydration, which can be avoided by drinking plenty of fluids\u003C\u002Fli\u003E\u003Cli\u003EMalnutrition, which usually results from not eating enough protein for weeks at a time\u003C\u002Fli\u003E\u003Cli\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fa-to-z-guides\u002Fwhat-is-electrolyte-imbalance\"\u003EElectrolyte imbalances\u003C\u002Fa\u003E, which can sometimes be life-threatening\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"4\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EWhat Are the Risks of Rapid Weight Loss? continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cspan\u003E\u003Cstrong\u003ESide effects of rapid weight loss\u003C\u002Fstrong\u003E\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003EOther side effects of rapid weight loss include:\u003C\u002Fp\u003E\u003Cul type=\"disc\"\u003E\u003Cli\u003EHeadaches\u003C\u002Fli\u003E\u003Cli\u003EIrritability\u003C\u002Fli\u003E\u003Cli\u003EFatigue\u003C\u002Fli\u003E\u003Cli\u003EDizziness\u003C\u002Fli\u003E\u003Cli\u003EConstipation\u003C\u002Fli\u003E\u003Cli\u003EMenstrual irregularities\u003C\u002Fli\u003E\u003Cli\u003EHair loss\u003C\u002Fli\u003E\u003Cli\u003EMuscle loss\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003Cp\u003EThe dangers of rapid weight loss increase with the time spent on the diet. Eating a no-protein diet is particularly risky.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003EIs Rapid Weight Loss Ever a Good Idea?\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EBefore beginning a rapid weight loss program, check with your doctor. They can provide guidance, often with the help of a dietitian, on a program that works with all of your health conditions.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EA \u003C\u002Fspan\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Flow-calorie-diets\"\u003E\u003Cspan\u003Every low-calorie diet\u003C\u002Fspan\u003E\u003C\u002Fa\u003E\u003Cspan\u003E (VLCD) may be the right choice for some people with obesity who are already facing serious health problems, such as diabetes, high cholesterol, or high blood pressure. These are people with a body mass index (BMI) greater than 30.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EWeight loss to attain a healthy body weight can also reduce the risk for some types of cancer, including postmenopausal breast cancer, as well as ovarian, colon, and pancreatic cancer.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"5\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"3\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EIs Rapid Weight Loss Ever a Good Idea? continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EBut super limiting diets also come with many cautions. They are hard to stick to and can lead to other health problems. A dramatic cutback in calories can cause you to lose muscle mass as well as fat. And it slows down your metabolism — your body’s calorie-burning process.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003ESome rapid weight loss programs cut out entire food groups. That can lead to:\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cul\u003E\u003Cli dir=\"ltr\" aria-level=\"1\"\u003E\u003Cspan\u003EConstipation\u003C\u002Fspan\u003E\u003C\u002Fli\u003E\u003Cli dir=\"ltr\" aria-level=\"1\"\u003E\u003Cspan\u003EFatigue\u003C\u002Fspan\u003E\u003C\u002Fli\u003E\u003Cli dir=\"ltr\" aria-level=\"1\"\u003E\u003Cspan\u003ELoss of bone density\u003C\u002Fspan\u003E\u003C\u002Fli\u003E\u003Cli dir=\"ltr\" aria-level=\"1\"\u003E\u003Cspan\u003ELower immunity\u003C\u002Fspan\u003E\u003C\u002Fli\u003E\u003Cli dir=\"ltr\" aria-level=\"1\"\u003E\u003Cspan\u003EHair loss\u003C\u002Fspan\u003E\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003Cp\u003ERapid weight loss diets can have ill effects, but so does obesity. For this reason, VLCDs are considered a reasonable weight loss option for people with \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fobesity\u002Fvideo\u002Fobesity-risks\" crosslinktype=\"Video\" id=\"276879bd-c279-4a3f-a1e0-25cd343e7e11\"\u003Eobesity\u003C\u002Fa\u003E needing rapid weight loss for a specific purpose such as weight loss surgery.\u003C\u002Fp\u003E\u003Cp\u003EVLCDs are doctor-supervised diets lasting several weeks. The meals are nutritionally balanced but expensive -- people can end up spending thousands of dollars over time. VLCDs can safely result in a loss of 15%-25% of body weight in 12 weeks. That's for those who finish the program: 25%-50% of people don't complete the program. Weight returns rapidly when the diet is stopped; most experts say it's best to take a more sustainable approach to weight loss, similar to that of regular diets.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"6\" \u002F\u003E\u003Cpagebreak \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EIs Rapid Weight Loss Ever a Good Idea? continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EMost people seeking rapid weight loss usually do it on their own. Often, they do it to achieve a short-term goal, such as fitting into a dress or looking good at the beach.\u003C\u002Fp\u003E\u003Cp\u003EStarving yourself is certainly not a good idea. But if you're otherwise healthy, a brief period of extreme calorie reduction isn't likely to hurt you. You should tell your doctor what you're doing, and be sure to include protein in your diet (70-100 grams per day). Take a multivitamin, and eat \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Ffoods-rich-in-potassium\"\u003Epotassium-rich foods\u003C\u002Fa\u003E (tomatoes, oranges, and bananas).\u003C\u002Fp\u003E\u003Cp\u003EAlso, remember that crash diets rarely help you achieve a sustained, healthy weight. Most people put the pounds right back on.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ERapid Weight Loss After Pregnancy\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003ERapid weight loss after giving birth may result from the pressures of being a new parent, including sleep deprivation and being too tired to eat. \u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"desktop\" order=\"4\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ERapid Weight Loss After Pregnancy continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EYour body burns more calories while you're breastfeeding. If you lose weight too fast, you could start producing less milk. So, it’s recommended you wait until your baby is at least 2 months old before you make a drastic cut in calories to get back to your prepregnancy weight.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EAbout 3% of people who give birth develop postpartum thyroiditis. That’s when your thyroid gland, which controls how your body uses energy, becomes inflamed. Sometimes this leads to an overactive thyroid (\u003C\u002Fspan\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fa-to-z-guides\u002Foveractive-thyroid-hyperthyroidism\"\u003E\u003Cspan\u003Ehyperthyroidism\u003C\u002Fspan\u003E\u003C\u002Fa\u003E\u003Cspan\u003E). That can be accompanied by weight loss. Treatment may include beta-blockers, prednisone, or both.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"7\" \u002F\u003E\u003Csection_header\u003ERapid Weight Loss After Antidepressants\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003ESeveral common antidepressants are linked to weight gain. It’s a reason many people give up on their mental health medications. Doctors may choose a prescription, such as topiramate, associated with significant weight loss.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ERapid Weight Loss and Estrogen Levels\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cspan\u003EBeing overweight or obese can increase your risk of developing certain types of breast cancer. Extra body fat may increase levels of estrogen and other hormones, which can increase breast cancer risks. Losing weight can lower hormone levels, and also the risks of hormone receptor-positive breast cancer.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ETakeaways\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EBeware of fad diets, detox schemes, and magic potions that promise a slimmer you without any effort. Rapid weight loss may be the right choice if obesity is affecting your health. Work closely with your doctor and\u003C\u002Fspan\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fwhat-to-know-dietitians-vs-nutritionists\"\u003E\u003Cspan\u003E dietitian\u003C\u002Fspan\u003E\u003C\u002Fa\u003E\u003Cspan\u003E for a weight loss plan that may include drugs, healthy foods, and exercise.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ERapid Weight Loss FAQs\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cspan\u003E\u003Cstrong\u003EWhat can cause rapid weight loss?\u003C\u002Fstrong\u003E\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cspan\u003ERapid, unexplained weight loss may be caused by cancer, diabetes, thyroid disease, Crohn’s, Parkinson’s, HIV, drug abuse, or dementia. It may also be the result of mental health conditions, such as depression, anxiety, or obsessive-compulsive disorder (OCD).\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"8\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ERapid Weight Loss FAQs continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cspan\u003E\u003Cstrong\u003EWhen is weight loss concerning?\u003C\u002Fstrong\u003E\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cspan\u003ECheck with your health care provider if you lose more than 10 pounds or 5% of your body weight in less than a year without making any changes to your diet or physical activity.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cspan\u003E\u003Cstrong\u003EWhat is considered unhealthy rapid weight loss?\u003C\u002Fstrong\u003E\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cspan\u003ELosing more than 2 pounds a week could be a threat to your health.\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E"},"citations":{"#cdata-section":"\u003Cp\u003ESOURCES:\u003C\u002Fp\u003E\u003Cp\u003E\u003Ci\u003EObesity:\u003C\u002Fi\u003E\u003Cspan\u003E“\u003C\u002Fspan\u003EThe evolution of very-low-calorie diets: an update and meta-analysis.\u003Cspan\u003E”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Ci\u003EAmerican Family Physician.\u003C\u002Fi\u003E\u003C\u002Fp\u003E\u003Cp\u003EFederal Trade Commission: \u003Cspan\u003E“\u003C\u002Fspan\u003ECommercial Weight Loss Products and Programs: What Consumers Stand to Gain and Lose,\u003Cspan\u003E”\u003C\u002Fspan\u003E\u003Cspan\u003E“\u003C\u002Fspan\u003EWeighing the Evidence in Diet Ads.\u003Cspan\u003E”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EAmerican Medical Association: “In Age of GLP-1 agonists, food choices still matter for health.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EBreastcancer.org: “Hormone Levels Drop When Obese Women Lose Weight.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003ECleveland Clinic: “How To Lose Weight After Pregnancy,” “Is It Bad To Lose Weight Too Quickly?” “Unexplained Weight Loss.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EJohns Hopkins Medicine: “Postpartum Thyroiditis.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EMayo Clinic: “Don’t Fall for Fad Diets,” “Choosing a Weight Loss Diet That’s Right For You,” “Prescription Weight Loss Drugs.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003EMt. Sinai: “Diet For Rapid Weight Loss,” “Losing Weight After Pregnancy.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Cspan\u003ENHS: “Unintentional Weight Loss.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E\u003Cp dir=\"ltr\"\u003E\u003Ci\u003E\u003Cspan\u003EObesity Pillars\u003C\u002Fspan\u003E\u003C\u002Fi\u003E\u003Cspan\u003E: “Weight-centric treatment of depression and chronic pain.”\u003C\u002Fspan\u003E\u003C\u002Fp\u003E"},"related_links_header":"","related_links_text":{"#cdata-section":""}}}}}},"staticPublicPath":"\u002Fstatic_vue\u002F091e9c5e81e52376\u002Fclient\u002F","isInteractivePage":false},"flow":{"flowInfo":{"guideArticle":{"assetId":"091e9c5e800924a6","channelId":"1115","contentType":"Article"}}},"quiz":{"rmq":{}}}</script> <script>window.__INITIAL_STATE__.route.hash = window.location.hash; window.__INITIAL_STATE__.route.fullPath = window.location.pathname; window.__INITIAL_STATE__.route.path = window.location.pathname; if(window.location.search !== ""){ var search = window.location.search.substring(1); window.__INITIAL_STATE__.route.query=JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) }) } else {window.__INITIAL_STATE__.route.query={};}</script><script>try{var _comscore=_comscore||[];_comscore.push({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}}),function(){var e=document.createElement('script'),o=document.getElementsByTagName('script')[0];e.async=!0,e.src='https://sb.scorecardresearch.com/cs/6035829/beacon.js',o.parentNode.insertBefore(e,o),window.__INITIAL_STATE__?window.document.addEventListener('before_pv',function(){window.document.addEventListener('onAdobeOmniBeforePv',function(){window.biConsumerIsReady&&self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})},{once:!0}):window.document.addEventListener('onAdobeOmniBeforePv',function(){self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})}()}catch(e){}</script><noscript><img src='https://sb.scorecardresearch.com/p?c1=2&c2=6035829&cv=3.9.1&cj=1'></noscript>  <script id="cookieConsentScriptNonEU" async="async" src="https://img.lb.wbmdstatic.com/webmd_static_vue/file-explorer/webmd/consumer_assets/site_images/webmd-ccm/webmd-ccm-lite.min.js"></script><script type="text/javascript" async="async" importance="high" src="https://securepubads.g.doubleclick.net/tag/js/gpt.js" id="GPT_JS"></script><script>window.webmd.googleloaded = true; window.googleloaded = true; </script> <script>window.performance.mark('page-end');</script> <link rel="stylesheet" href="//img.lb.wbmdstatic.com/webmd_static_vue/091e9c5e81e52376/client/css/non-critical-1732570906135.f64d91a6.css"> <link rel="stylesheet" href="//img.lb.wbmdstatic.com/webmd_static_vue/091e9c5e81e52376/client/css/pagetype-oncology-1732570906135.b84c3554.css"> </body> </html>