The Claim
Animal protein intake is associated with greater calf muscle cross-sectional area in endurance-trained adults, independent of lean body mass.
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.
Endurance-trained adults who consume more animal protein have larger calf muscle cross-sectional areas, even when accounting for their total lean body mass.
See the scientific wording
Animal protein intake is associated with greater calf muscle cross-sectional area in endurance-trained adults, independent of lean body mass, suggesting a potential role for animal-derived amino acids in muscle maintenance under high-volume training.
Eating animal protein provides amino acids that trigger muscle cells to build more protein, while also increasing a hormone that tells muscles to grow. This leads to thicker calf muscles even when someone is doing a lot of endurance training.
What the research says
1 studyEndurance athletes who ate more protein from animals like meat and dairy had bigger calf muscles, even when researchers looked at their overall body size. This suggests animal protein might help keep their muscles strong during tough training.
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.