The Claim
An additional daily intake of approximately 1 g/kg of protein from supplements, leading to a total protein intake of about 2 g/kg/day, is probably associated with the greatest improvements in athletic performance, according to moderation analysis of existing clinical trials, although this association may be confounded by unmatched energy intake in most of these studies.
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.
Taking about an extra gram of protein per pound of body weight every day — mostly from supplements — might help athletes perform their best, but it's hard to be sure because most studies don’t account for total calories.
See the scientific wording
An additional daily intake of approximately 1 g/kg of protein from supplements, resulting in a total intake of about 2 g/kg/day, is probably associated with the greatest improvements in athletic performance, based on moderation analysis of existing trials, though this effect is confounded by unmatched energy intake in most studies.
What the research says
1 studyThe study found that taking about 1 gram of extra protein per pound of body weight each day seems to help athletes perform better, which matches the claim. But it's possible the benefit came from eating more total calories, not just protein.
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.