The Claim
In healthy active older adults consuming adequate protein (>1.2 g/kg/day), daily consumption of 500 mL of reduced-fat dairy milk for 12 weeks does not significantly increase fat-free mass beyond the gains achieved through progressive resistance training alone, despite total protein intake reaching 1.8 g/kg/day.
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.
In healthy older adults who are physically active and already eating enough protein, drinking 500 mL of reduced-fat milk daily for 12 weeks does not lead to more muscle mass gain than progressive resistance training alone, even though total protein intake increases.
See the scientific wording
In healthy active older adults consuming adequate protein (>1.2 g/kg/day), daily consumption of 500 mL of reduced-fat dairy milk for 12 weeks does not significantly increase fat-free mass beyond gains achieved through progressive resistance training alone, despite higher total protein intake (1.8 g/kg/day), indicating that additional protein from dairy does not augment muscle mass accrual in this population.
When older adults already lift weights and eat enough protein, their muscles become fully responsive to the amino acids from food. Adding more protein from milk doesn't make them build more muscle because the muscles are already using all the amino acids they can for repair and growth.
What the research says
1 studyFor older adults who already lift weights and eat enough protein, drinking two glasses of milk a day doesn't help them build more muscle than lifting weights alone — even though the milk adds extra 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.