The Claim
Higher dietary protein intake is independently associated with a 33% lower risk of all-cause mortality over a 10-year period in adults aged 28–75, with each doubling of protein intake from approximately 0.85 to 1.7 g/kg/day linked to reduced mortality risk after adjustment for muscle mass, inflammation, and metabolic disease.
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.
Adults aged 28–75 who consume more dietary protein have a 33% lower risk of dying from any cause over 10 years, compared to those who consume less, even when accounting for differences in muscle mass, inflammation, and metabolic disease.
See the scientific wording
Higher dietary protein intake is independently associated with a 33% lower risk of all-cause mortality over 10 years in adults aged 28–75, with each doubling of protein intake (from ~0.85 to ~1.7 g/kg/day) linked to reduced mortality risk after adjusting for muscle mass, inflammation, and metabolic disease.
When people eat enough protein, their liver makes less of a signal called FGF21, which tells muscles to stop breaking down and start building protein. This keeps muscle mass strong, helps the body handle stress, and prevents organ failure or infection from becoming deadly. When protein intake is low, the liver makes too much FGF21, muscles waste away, and the body becomes more vulnerable to death from any cause.
What the research says
1 studyPeople who ate more protein per pound of body weight were much less likely to die over the next 10 years, even when scientists accounted for how much muscle they had and other health factors.
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.