Thread by @ChrisMillsRD

#NSLive20 @mackinprof Prof Stuart Phillips - after the age of 50 there are muscle mass losses of 1% per year and muscle strength losses of up to 3% per year

Professor Phillips will discuss findings from his lab's review article: Protein Requirements and Optimal Intakes in Aging: Are We Ready to Recommend More Than the Recommended Daily Allowance #NSLive20 pubmed.ncbi.nlm.nih.gov/29635313/

#NSLive20 More protein from dietary sources is associated with better retention of lean body mass and function - Prof Stuart Phillips

#NSLive20 20g of protein stimulates maximal rate of muscle protein synthesis in young men - Prof Stuart Phillips

40g of protein maximally stimulates muscle protein synthesis after resistance training in older adults #NSLive20 - Prof Stuart Phillips

Aging mitigates the muscle protein synthesis response to a fixed dose of protein (20g) #NSLive20 - Prof Stuart Phillips - meal-induced increases in muscle protein synthesis are lower with aging: called anabolic resistance

#NSLive20 - Prof Stuart Phillips discussing "optimal" protein consumption vs minimal protein consumption - for an older adult, the optimal protein consumption could be 40g at each meal - would result in 19% of calories from protein

#NSLive20 - Prof Stuart Phillips - adding leucine to a low dose of protein increases muscle protein synthesis

#NSLive20 - Prof Stuart Phillips - leucine added to daily meals augments resting and exercising skeletal muscle protein synthesis in older men and older women

Protein quality not just quantity needs to be improved in older adults, quality protein is leucine-rich protein #NSLive20 - Prof Stuart Phillips

Protein will not:
- cause you to lose bone (as long as you have calcium and vitamin D)
- cause your kidneys to fail
- give you cancer (paper forthcoming)
#NSLive20 - Prof Stuart Phillips

Consumption of a greater proportion of dietary energy from protein is associated with:
- a lower risk of protein-energy malnutrition
- higher healthy eating index scores
- increased consumption of nutrients of concern in older people
#NSLive20 - Prof Stuart Phillips

Take homes from @mackinprof #NSLive:
- older adults have higher protein requirements
- many older adults do not consume enough protein to meet these requirements
- in observational studies higher protein intakes associated with greater preservation of lean body mass
- leucine key