The Claim
When total protein intake is standardized at 1.6 g/kg/day, habitual vegan and omnivorous young men exhibit similar gains in leg-press 1RM strength over 12 weeks of resistance training, indicating that prior dietary patterns do not alter the strength response to protein supplementation during training.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Young men who follow vegan or omnivorous diets show the same increase in leg-press strength after 12 weeks of resistance training when both groups consume 1.6 grams of protein per kilogram of body weight per day.
See the scientific wording
When total protein intake is standardized at 1.6 g/kg/day, habitual vegan and omnivorous young men exhibit similar gains in leg-press 1RM strength over 12 weeks of resistance training, indicating that prior dietary patterns do not alter the strength response to protein supplementation during training.
When a person consumes enough protein each day and lifts weights, the amino acids from the protein turn on a cellular switch that tells muscle cells to build more contractile proteins. This causes muscle fibers to grow thicker, which makes the muscle stronger over time. It doesn't matter if the protein comes from plants or animals, as long as the total amount and key amino acids are sufficient.
What the research says
1 studyWhether someone ate meat or plants for years doesn’t matter — when they start lifting weights and get the same amount of protein from supplements, they get just as strong as each other.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.