Study: Vegetarians Have Much Healthier Hearts

The risk of heart disease is reduced by a third in non-meat-eaters

RTR2T7CR615.jpg
Navesh Chitrakar/Reuters

PROBLEM: While plenty of people become vegetarians for ethical reasons, others (myself included) adopt the diet for its purported health benefits -- and, perhaps more importantly, for the health benefits of not eating meat.

METHODOLOGY: For "the largest study ever conducted in the UK comparing rates of heart disease between vegetarians and non-vegetarians," researchers at the University of Oxford drew upon data from almost 45,000 participants in a long term study. A full 34 percent of the people in the sample were vegetarians (none ate meat and fish; the study doesn't specify how many were vegans).

Over an average of eleven years of follow-up, they tracked the participants' hospital (and death) records, controlling for age, health, and lifestyle factors. For a smaller subset, they also recorded their blood pressure and blood cholesterol levels.

RESULTS: The self-proclaimed vegetarians had a 32 percent reduced risk of both fatal and non-fatal heart disease, accompanied by lower blood pressures and cholesterol levels, as compared to non-vegetarians. They consumed, on average, more cheese, fruits, vegetables, and whole grains, and less milk. 

Medical providers, local communities, and the public wellness movement. See full coverage

Vegetarians also had lower BMIs and fewer cases of diabetes -- when the results were adjusted to exclude the effects of body weight, their risk reduction remained at 28 percent.

IMPLICATIONS: The researchers believe that the lowered blood pressure and cholesterol in vegetarians explains most of their reduced risk. They showed, above else, that diet is important in protecting against heart disease. Just as it's possible to do vegetarianism wrong (regardless of what Congress says, pizza is not a vegetable), incorporating more vegetables, whole grains, nuts, and legumes into any diet will probably be associated with health benefits, too.

The full study, "Risk of hospitalization or death from ischemic heart disease among British vegetarians and nonvegetarians: results from the EPIC-Oxford cohort study," is published in the American Journal of Clinical Nutrition.

Presented by

Lindsay Abrams is an assistant editor at Salon and a former writer and producer for The Atlantic's Health Channel.

The Blacksmith: A Short Film About Art Forged From Metal

"I'm exploiting the maximum of what you can ask a piece of metal to do."

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register.

blog comments powered by Disqus

Video

Riding Unicycles in a Cave

"If you fall down and break your leg, there's no way out."

Video

Carrot: A Pitch-Perfect Satire of Tech

"It's not just a vegetable. It's what a vegetable should be."

Video

An Ingenious 360-Degree Time-Lapse

Watch the world become a cartoonishly small playground

Video

The Benefits of Living Alone on a Mountain

"You really have to love solitary time by yourself."

Video

The Rise of the Cat Tattoo

How a Brooklyn tattoo artist popularized the "cattoo"

More in Health

Just In