Could Switching to a Vegan Diet Make You Biologically Younger?
By Dennis Thompson HealthDay Reporter
TUESDAY, July 30, 2024 -- Eating a vegan diet may help you age more slowly, a new study claims.
Twins assigned to eat a vegan diet for eight weeks appeared to age biologically more slowly than their twin sibling assigned an omnivorous diet that included meat, eggs and dairy, results show.
The researchers “observed decreases in estimates of biological age -- known as epigenetic aging clocks -- in participants who ate a vegan diet, but not among those that ate an omnivorous diet,” concluded the research team led by Varun Dwaraka, head of bioinformatics with TruDiagnostic, a leading health data company.
For the study, researchers recruited 21 pairs of adult identical twins.
One twin was assigned to be vegan and the other an omnivore. They ate prepared meals for the first four weeks of the study, while they ate meals they prepared themselves based on nutrition lessons for the second four weeks.
By the end of the study, researchers found that the vegan twins had aged less at the cellular level than the omnivorous twins.
They also observed decreases in the ages of the heart, hormone, liver and inflammatory and metabolic systems of participants who ate vegan.
The vegan twins also lost an average of more than four pounds more than their omnivorous twin during the study, researchers said. This was mainly due to differences in calorie content for the prepared meals eaten during the first four weeks of the study.
More research is needed to understand the relationship between diet and aging, as well as the long-term health effects of a vegan diet, the researchers concluded.
The new study was published July 29 in the journal BMC Medicine.
Sources
- BMC Medicine, news release, July 28, 2024
Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2025 HealthDay. All rights reserved.
Posted July 2024
Read this next
Recalled: More Than 67,000 Cases of Deodorant Sold at Dollar Tree, Walmart, and Amazon
TUESDAY, July 22, 2025 — More than 67,000 cases of Power Stick deodorant have been recalled due to an undisclosed manufacturing issue. The recalled deodorants, made by A.P...
For Some, Gluten Intolerance Is Psychological, Study Says
TUESDAY, July 22, 2025 — Gluten intolerance might be all in the minds of some people with irritable bowel syndrome (IBS), results from a small-scale experiment...
Dogs Can Sniff Out Parkinson's Disease, Study Shows
TUESDAY, July 22, 2025 — Dogs’ noses are sensitive enough to track down fleeing convicts, locate human remains in hidden burial sites and detect illicit drug...
More news resources
- FDA Medwatch Drug Alerts
- Daily MedNews
- News for Health Professionals
- New Drug Approvals
- New Drug Applications
- Drug Shortages
- Clinical Trial Results
- Generic Drug Approvals
Subscribe to our newsletter
Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.