The Claim
In healthy young men consuming an omnivorous diet, supplementation with 45 grams per day of a plant-based protein blend (soy and pea) over 12 weeks during resistance training results in no difference in whole-body fat mass reduction compared to supplementation with whey protein.
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.
In healthy young men doing resistance training and eating a regular diet, taking 45 grams of soy and pea protein daily for 12 weeks leads to the same amount of fat loss as taking 45 grams of whey protein.
See the scientific wording
In healthy young men consuming an omnivorous diet, supplementing with 45 grams of plant-based protein (soy and pea blend) does not impair fat loss during resistance training, as whole-body fat mass decreased similarly to whey protein supplementation over 12 weeks, indicating that protein source does not influence body composition changes beyond lean mass accrual.
When a person lifts weights and eats enough protein, their muscles keep building new tissue instead of breaking down. This keeps the body from needing to burn fat for energy, so fat loss stays the same whether the protein comes from plants or animals.
What the research says
1 studyWhen young men lifted weights and took either soy-pea or whey protein, both groups got just as strong and built similar amounts of muscle — so it’s likely they also lost similar amounts of fat, meaning the type of protein didn’t make a difference.
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.