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Making the switch to a vegetarian or vegan diet

Several million Americans have abandoned red meat and poultry in favor of a predominantly plant-based diet. One reason some are making the switch is evidence of the health perks from going vegetarian or vegan, reports the May 2014 Harvard Women's Health Watch.

"There's certainly some research on the benefits of the vegetarian diet," says Kathy McManus, director of the Department of Nutrition at Harvard-affiliated Brigham and Women's Hospital. It can help lower or control weight, reduce the chances of developing heart disease, diabetes, and cancer, and possibly lead to a longer, healthier life.

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