--- title: More Than Two Thirds of Americans Are Overweight or Obese description: Most Americans are overweight, according to a new study looking at overweight and obesity rates in the United States. canonical: https://time.com/3929990/americans-overweight-obese/ author: Alexandra Sifferlin article:opinion: false article:content_tier: free article:published_time: 2015-06-22T15:10:58.000Z article:modified_time: 2026-08-04T07:58:49.729Z article:section: Health og:title: More Than Two Thirds of Americans Are Overweight or Obese og:description: Most Americans are overweight, according to a new study looking at overweight and obesity rates in the United States. og:url: https://time.com/3929990/americans-overweight-obese/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 1200 og:image:height: 675 og:image:alt: TIME og:type: article twitter:card: summary_large_image twitter:title: More Than Two Thirds of Americans Are Overweight or Obese twitter:description: Most Americans are overweight, according to a new study looking at overweight and obesity rates in the United States. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # More Than Two Thirds of Americans Are Overweight or Obese > Sponsored content. 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Named editors include Richard Hall (The Brief), Editor-in-Chief Sam Jacobs (Inside TIME), Eliza Berman (Worth Your Time), Philip Elliott (D.C. Brief), Justin Worland (Future Proof) and Harry Booth (In the Loop). Health Matters is written by TIME's health desk. #### How do I sign up for a TIME newsletter? Go to time.com/newsletters, choose the newsletters you want and enter your email address. There is no cost and no subscription requirement. ### Sources * TIME Newsletters: [time.com/newsletters](/c/time-nl-network-2026q3/newsletters?i=79f85245-d2bc-4a66-95c3-77ad5bc35a99&cr=time-nl-network-2026q3-v1) ## Video: The Truth About Fat [Watch (HLS stream): The Truth About Fat](https://cdn.jwplayer.com/manifests/uYGhfNfS.m3u8) (5:15)  _Published 2014-06-12. When you want to lose weight or get healthy, what is the first thing you would normally cut from your diet? If you said fat, you're not alone_ by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin Jun 22, 2015 3:10 PM UTC by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin Jun 22, 2015 3:10 PM UTC Most Americans are overweight, according to a new study looking at overweight and obesity rates in the United States. In a report [published](http://archinte.jamanetwork.com/article.aspx?doi=10.1001/jamainternmed.2015.2405) in _JAMA Internal Medicine_, researchers from Washington University School of Medicine in St. Louis studied data from 2007 to 2012 of a nationally representative group of 15,208 people ages 25 or older. The researchers estimate that during that time period, 40% of men were overweight and 35% of men were obese. They estimate that 30% of women were overweight and 37% were obese. The numbers are similar to those [estimated](http://www.cdc.gov/obesity/adult/index.html) by the U.S. Centers for Disease Control and Prevention (CDC)., which suggest that one third of American adults are obese. “Our estimates are very close to CDC’s estimates, and there is clearly not a trend of decline on the prevalence of overweight and obesity in the United States,” says study author Lin Yang, a postdoc researcher at Division of Public Health Sciences in the Department of Surgery in an email. “Thus, we strengthen the case for implementing policies and practices that span multiple sections and \[are\] designed to combat overweight and obesity. This will need a political will to support multi-level approaches through individual, health professional, community, environment and policy engagement to address this epidemic as a whole.” The new data show Americans’ waistlines have continued to grow over the last 20 years, the study authors write. People who are overweight or obese are also at a greater risk of other chronic diseases like heart disease and type 2 diabetes. [According to the CDC](http://www.cdc.gov/obesity/data/adult.html), the estimated yearly medical costs of obesity in the U.S. reached $147 billion in 2008, the latest data available. The researchers conclude that interventions should prioritize healthy diet, physical activity and healthy social norms to get Americans back in shape. ## Transcript [ MUSIC ] There's something we all enjoy about staying for dinner. You ever thought why? What was on your dinner table when you were younger? Chances are it had a lot to do with, what your doctor was telling you is healthy. Building a strong healthy body is like building a strong, beautiful building. If the foundation is weak, the whole building will be weak. It takes five fingers to point the way to healthful eating habits. Well, here we go. For years, the government published dietary guidelines. Meant to keep Americans healthy. There's a great deal to learn. Tell me what you eat, and I'll tell you what you are. The body needs certain substances to live and grow. And remember, your body isn't just like an automobile. For years, the key measures of those guidelines were the same, cut fat from your diet. The committee's original report urged Americans to reduce their risk of heart attack. By reducing their intake of cholesterol down to the equivalent of about one egg a day. And those guidelines had an effect. From 1977 to 2012, per capita consumption of eggs fell by 9 %, beef by 37 %, whole milk by 72 %. Calories from saturated fat fell, while calories from supposedly safe carbohydrates increased. As one expert put it, it was a vast nutritional experiment. With nearly a million American's a year dropping dead from heart disease in the mid 80s, we had to try something. Nearly four decades later results are in. The experiment was a failure. Americans are sicker than they've ever been before. The prevalence of diabetes has gone up 157 % from 1980 to 2011. Nearly one in ten Americans now has the disease. Causing the public health system $ 245 billion a year. Heart disease is still the number one killer in the country. Americans are as obese as ever. So, what went wrong? Good old granola. Great for taste but loaded with fat. It doesn't take much of imagine a leap to assume that fat would make us fat, clog our arteries and raise the risk of heart disease. It turns out that saturated fat is a lot more complicated than we think. Carbohydrates and fats are nutrients. Like man, you need nutrients to live and grow. [ MUSIC ] Firstly, there are two kinds of cholesterol. LDL which is linked to heart disease and HDL which can be protective. Fats that course through the blood are known as triglycerides and high levels of those are linked to heart disease. Saturated fat raises LDL cholesterol but also raises HDL. Moving LDL buildup on arterial walls. So raising both, makes saturated fat a cardio wash. One key piece of information is that LDL seems to come in two forms. Large and fluffy, small and dense. Those smaller particles are linked to heart disease, while the larger ones are mostly benign. Saturated fat increases the number of large particles. The opposite happens with carbs. I don't get it. Researchers have long since discovered the kind of fats found in olives and in fish like salmon. Are actually heart protective. Now it turns out the fats found in meat and dairy, aren't as bad as we feared before. So that means by focusing so much on fats. We may actually have been making ourselves sicker. So, she brings up the subject of reduced- fat cheese. It's a fat- free [ UNKNOWN ]. Fat- free, cholesterol free. Low- fat granola. Reduced- fat Kettle chips. Reduced- fat Chips Ahoy. Lowfat cottage cheese. Non- fat yogurt is the perfect example. The thinking for consumers was simple. Fat was dangerous. This product had no fat. Therefore, it must be healthy. It's non- fat, which means less calories. [ MUSIC ] But amid the confusion about fat, we end up replacing it in our diets with sugars and carbohydrates, which meant our calorie intake was actually going up. When carbs and things like corn and white bread are ingested into your body, their converted into sugars. Those sugars convert to insulin cuz it's fat cells go into storage overdrive, leading to weight gain. Since fewer calories are then left to fill the body, you begin to feel hungry it means our metabolism begins to slow down in effort to save energy, we eat more and we gain more weight, never quite feeling full. As this process repeats, our cells become more resistant to insulin, which causes us to gain more weight, which increases insulin resistance in a vicious circle. Cut calories, and people just get hungrier. Obesity, diabetes, high triglycerides and low HDL cholesterol can all follow. Study after study has found it's very difficult to lose weight on a very low- fat diet. Possibly because fat and meat can produce a sense of satiety, that's hard to achieve with carbs, making it easier to simply stop eating. But it isn't just the increase in carbs that affects us. These processed, low saturated fat alternatives, come loaded with sugars, salt, preservatives, and even some unhealthy fats. So what's the real alternative? As one extra puts it, the cold hard truth about diet is that the only way to eat well, is to eat well. You'll be happier and you'll be healthier, if you focus on real whole foods, whether they have fat or not. Got it. 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