The Claim
In postmenopausal women, a daily protein intake of at least 1.2 grams per kilogram of body weight is associated with higher muscle strength in hand grip and knee extensor muscles compared to a daily protein intake of 0.8–1.19 grams per kilogram of body weight, despite no difference in skeletal muscle mass between the two intake groups.
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.
Postmenopausal women who consume at least 1.2 grams of protein per kilogram of body weight daily have stronger hand grip and knee extensor muscles than those who consume 0.8 to 1.19 grams per kilogram daily, even though both groups have the same amount of skeletal muscle mass.
See the scientific wording
In postmenopausal women, a daily protein intake of at least 1.2 grams per kilogram of body weight is associated with higher muscle strength in hand grip and knee extensor muscles compared to an intake of 0.8–1.19 grams per kilogram per day, despite no difference in skeletal muscle mass between the groups.
More protein in the diet increases the availability of amino acids that help muscle fibers generate stronger pulls during contraction, making each fiber work better without getting bigger.
What the research says
1 studyStudy: Relationship between different protein intake recommendations with muscle mass and muscle strength
Older women who ate more protein each day had stronger hands and legs than those who ate less protein—even though both groups had the same amount of muscle. This means more protein helps muscles work better, even if they don’t get bigger.
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.