The PROT-AGE Study Group review recommended a daily protein intake of 1.5 to 2.0 g/kg for adults over 60 and concluded that animal protein is more effective than plant protein.
"and I looked at this one large uh review by a group called the PROT-AGE Study Group, which looked at protein requirements in people over 60... And they said the recommendation was 1.5 to 2 g per kilo. And they also said that the that animal works better than plant. And they also said that you should have at least 25 to 40 g per meal in order to hit that that threshold of actually activating or switching on muscle protein synthesis or building muscle." (said at 0:54:11)
The PROT-AGE Study Group position paper (Bauer et al., 2013) did not recommend a general daily intake of 1.5 to 2.0 g/kg for older adults, nor did it establish a definitive recommendation favoring animal over plant protein. The position paper recommended an average daily protein intake of 1.0 to 1.2 g/kg/day for healthy older adults (>65 years), at least 1.2 g/kg/day for active older adults, and 1.2 to 1.5 g/kg/day for those with acute or chronic diseases (with up to 2.0 g/kg/day only considered in severe illness or marked malnutrition). Regarding protein source and quality, the consensus concluded that while protein quality and timing may be relevant, the evidence at the time was insufficient to support specific recommendations.
- contradicts: Evidence-based recommendations for optimal dietary protein intake in older people: a posit… (Journal of the American Medical Directors Association 2013)
"To help older people (>65 years) maintain and regain lean body mass and function, the PROT-AGE study group recommends average daily intake at least in the range of 1.0 to 1.2 g protein per kilogram of body weight per day. Both endurance- and resistance-type exercises are recommended at individualized levels that are safe and tolerated, and higher protein intake (ie, ≥ 1.2 g/kg body weight/d) is advised for those who are exercising and otherwise active. Most older adults who have acute or chronic diseases need even more dietary protein (ie, 1.2-1.5 g/kg body weight/d)... Protein quality, timing of ingestion, and intake of other nutritional supplements may be relevant, but evidence is not yet sufficient to support specific recommendations." (abstract, results, passage verified)
pubmedfull study (doi)