The Claim
In healthy young adults, the acute muscle protein synthetic response to 20 grams of whey protein is not significantly different from that of 20 grams of leucine-fortified pea-and-canola protein, despite whey protein inducing higher plasma insulin levels, suggesting that insulin is not a primary driver of acute muscle protein synthesis in this context.
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.
Eating 20 grams of whey protein and 20 grams of a plant-based protein with added leucine both build muscle at about the same rate in young, healthy people—even though whey makes your insulin spike higher. That means insulin probably isn’t the main reason your muscles grow after protein.
See the scientific wording
In healthy young adults, the muscle protein synthetic response to 20 grams of whey protein is not significantly different from that of 20 grams of leucine-fortified pea-and-canola protein, despite whey inducing higher plasma insulin levels, suggesting insulin is not a primary driver of acute MPS in this context.
What the research says
1 studyThis study found that a plant-based protein with extra leucine builds muscle just as well as whey protein, even though it doesn’t spike insulin as much — meaning insulin isn’t the main reason protein builds muscle.
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.