GeorgeN wrote:I recall seeing a story on guys seriously into CR some years ago. The CR lowered the guy's testosterone so much he had issues holding onto muscle and sex was out of the question. I think he had low energy, too. I've not studied the CR stuff in detail, but that guy's life is not attractive to me. There is some balance in being able to live well and not just long...
A friend who is a dietician in nursing homes told me their metric is 1g/kg. Ron Rosedales is more like 0.7 g/kg. 20 g's of protein for me would be 0.25 g/kg.
20g is just not realistic for an active person, Hep is talking cortisol and stress and that happens after weight training which causes muscle breakdown and recovery needs adequate protein. Have you looked at the thin weak CR people, tried that years ago as it wastes muscle but might give you some endurance but ones strength will suffer as mine did.
We need to maintain and build muscle so we can walk and get up off the chair in old age and muscle can be gained at any age and 20g is probably too low and meant for only those with serious metabolic problems and disease progression.
there is a discussion in the paper on gaining and maintaining strength which is mostly good information maybe a few things worth quibbling about but it explains the old adage that protein requirement depends on ones activity level. So near starvation and low protein is just going to make us a weakling with a walker with good medical markers.
https://www.academia.edu/9035970/30_Bod ... kly_digest