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  2. Dec 4, 2023

Twin Study Shows That Vegan Diets Improve Cardiometabolic Health

A new study has helped distinguish the effects of diet from those of genetics for health. Researchers took healthy adult twin pairs and assigned one twin to follow a plant-based and the other to follow an omnivorous diet for eight weeks. At the end of the study, the plant-based group had better cholesterol and fasting insulin and lost more weight than their omnivorous twin counterparts.


Landry M, Ward C, Cunanan K, et al. Cardiometabolic effects of omnivorous vs vegan diets in identical twins: a randomized clinical trial. JAMA Netw Open. 2023;6(11):e2344457. doi:10.1001/jamanetworkopen.2023.44457

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