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Why Plant-Based Might Be the Healthiest Diet for Weight Control

We know that vegetarians tend to be slimmer, but there’s a perception that veg diets may somehow be deficient in nutrients. So how’s this for a simple study: researchers analyzed the diets of 13,000 people and compared the nutrient intake of those eating meat to those eating meat-free.

They found that those eating vegetarian were getting higher intakes of nearly every nutrient: more fiber, more vitamin A, more vitamin C, more vitamin E, more of the B vitamins (thiamin, riboflavin, & folate), more calcium, more magnesium, more iron, and more potassium. At the same time, they were also eating less of the harmful stuff like saturated fat and cholesterol. And yes, they got enough protein.

And some of those nutrients are the ones Americans really struggle to get enough ofólike fiber, vitamins A, C, and E, calcium, magnesium, potassiumóand those eating vegetarian got more of all of them. Even so, just because they did better than the standard American diet isn’t saying muchóthey still didn’t get as much as they should have. Those eating vegetarian ate significantly more dark green leafy vegetables, but that comes out to just two more teaspoons of greens than meat eaters on average every day.

In terms of weight management, the vegetarians were consuming, on average, 363 fewer calories every day. That’s what people do when they go on a diet and restrict their food intakeóbut it seemed like that is what vegetarians ate normally.

How sustainable are more plant-based diets long term? They are among the only type of diets that have been shown to be sustainable long-term, perhaps because not only do people lose weight but they often feel so much better.

And there’s no calorie counting or portion control. In fact, vegetarians may burn more calories in their sleep. Those eating more plant-based diets appear to have an 11% higher resting metabolic rate. Both vegetarians and vegans seem to have a naturally revved up metabolism compared to those eating meat.

Having said that, the vegetarians in the first study mentioned, were also eating eggs and dairy, so while they were significantly slimmer than those eating meat, they were still, on average, overweight. As profiled in my video, Thousands of Vegans Studied, the only dietary pattern associated on average with an ideal body weight was a strictly plant-based one. At least this study helps to dispel the myth that meat-free diets are somehow nutrient-deficient. In fact, the editor-in-chief of the Journal of the American Dietetic Association asked, “What could be more nutrient dense than a vegetarian diet?”

Anyone can lose weight in the short term on nearly any diet, but diets donít seem to work in the long-term. We donít need a diet; we need a new way of eating that we can comfortably stick with throughout our lives. If thatís the case, then we better choose to eat in a way that will most healthfully sustain us. Thatís why a plant-based diet may offer the best of both worlds. Itís the only diet shown to reverse heart disease–our number one killer–in the majority of patients, as described in my video: One in a Thousand: Ending the Heart Disease Epidemic.

There are a number of theories offered as to why those eating plant-based are, on average, so much slimmer. Check out these videos for more information:

In health,
Michael Greger, M.D.

PS: If you havenít yet, you can subscribe to my free videos here and watch my live year-in-review presentations†Uprooting the Leading Causes of Death and More Than an Apple a Day.

Nuts Donít Cause Expected Weight Gain
Tricks to Get Adults to Eat Healthier
Combating Common Diseases With Plants

Read more: Food, Alternative Therapies, Diet & Nutrition, Eating for Health, General Health, Men's Health, Natural Remedies, Obesity, Vegan, Vegetarian, Videos, Women's Health, , ,

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Dr. Michael Greger

A founding member of the American College of Lifestyle Medicine, Michael Greger, M.D., is a physician, author, and internationally recognized speaker on nutrition, food safety, and public health issues. Currently Dr. Greger serves as the Director of Public Health and Animal Agriculture at The Humane Society of the United States. Hundreds of his nutrition videos are freely available at


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7:55AM PDT on Apr 3, 2014

Thanks for sharing.

7:32AM PDT on Mar 31, 2014

Good to know, thanks for sharing this :-)

6:10AM PDT on Mar 31, 2014

Good information...thanks.

11:51AM PDT on Mar 30, 2014

Thank you.

7:18AM PDT on Mar 30, 2014

Thanks for sharing

4:15AM PDT on Mar 30, 2014

Thanks for this information

7:47PM PDT on Mar 29, 2014

Thanks for sharing.

6:54PM PDT on Mar 29, 2014

Thank you.

6:53PM PDT on Mar 29, 2014

Thank you.

3:32PM PDT on Mar 29, 2014


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Thanks for the info!


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