Research
Energy balance
Twins on the vegan diet experienced a significant mean decrease in body weight of -1.9 kg after 8 weeks.
Clinicians may recommend a vegan diet for weight loss in patients.
StrongSupportsmedium confidence
Twins randomized to the vegan diet experienced significant mean (SD) decreases in body weight (-1.9 [0.7] kg; 95% CI, -3.3 to -0.6 kg).
Why this rating
Based on the randomized clinical trial design.
Source
Cardiometabolic Effects of Omnivorous vs Vegan Diets in Identical Twins
Matthew J. Landry et al. · JAMA Network Open · 2023
DOI 10.1001/jamanetworkopen.2023.44457
rct · n=44Cited 90×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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