Quartz
Subscribe
Quartz
Subscribe
Edition
Business News
A.I.
Technology
Money & Markets
Leadership
Lifestyle
Latest

Get Quartz in your inbox

Free daily briefing on global business news.

Business News
AirlinesAutomobilesFoodPharmaceuticalsPolitics & GovernmentRetail & EcommerceSpace & AerospaceEarnings
Technology
A.I.ComputingConsumer TechSpace & AerospaceEarnings
Money & Markets
Economic IndicatorsMarketsPersonal FinanceEarnings
Lifestyle
Cars & BikesCollectingEntertainmentFood & Fine DiningHealth and FitnessReal EstateTravel
Quartz

Global business news for a smarter world

Topics

  • Business News
  • Money & Markets
  • Tech & Innovation
  • Generation A.I.
  • Lifestyle
  • Leadership

Products

  • Daily Brief
  • Weekly Digest
  • Member Benefits
  • Quartz Pro

Legal

  • Sitemap
  • About
  • Accessibility
  • Privacy
  • Terms of Service
  • Advertising

© 2026 Quartz Media, Inc. All rights reserved.

Energy Transition

Vegan and vegetarian diets are the best for losing weight, new study finds

There are those who believe that the ticket to a summer beach body is eating hoards of meat. Others opt for avoiding meat all together.

By Gabriel Fisher·1 min read·Updated July 21, 2022
Add QZ to Google

There are those who believe that the ticket to a summer beach body is eating hoards of meat. Others opt for avoiding meat all together.

Veggie favorers have some fresh ammunition in that battle: A new study released in the Journal of General Internal Medicine finds that vegetarian diets are most effective at achieving weight loss.

Daily Brief

The essential business news, delivered fresh every morning.

Join 500,000+ readers who start their day with Quartz.

By subscribing, you agree to our Terms of Service and Privacy Policy.

The study, a meta-analysis of 12 separate studies that each compared vegetarian diets to other types of diets, found that on average across the studies, vegetarian dieters lost 2.02 kg more than those on the non-vegetarian diets. More specifically, the researchers found that the eight studies of vegan diets led to weigh loss of 2.52 kg more than non-vegan diets.

It’s worth noting that the studies analyzed varied widely in terms of the types of vegetarian and vegan diets as well as the control group diets. The researched looked at 1,151 dieters across the 12 studies, with diets ranging in length between nine and 74 weeks.

The research comes at a time when high-protein, low-carbohydrate diets are back in vogue, and America’s obesity problem is deepening. Unlike diets like Paleo and Atkins, vegetarian diets tend to emphasize whole grains, and fruits and vegetables, which the study’s authors suggested may help more in weight loss because of their high fiber content and low levels of simple sugars. The healthy fibers in whole grain foods, they noted, can delay the time that it takes for the body to digest and empty of its food, which helps people consume less food overall.