Yes, protein is essential for good health in aging. But eating sufficient protein alone, for the elderly is not necessarily the answer.
You must be able to digest the protein for it to be of any value.
So in this perspective, evaluation of digestive strength is of utmost importance.
Often supplements of enzymes and HCL is required. Too much protein that is ill digested may in fact create a decrease in life span due to the toxic components formed by ill digestion.
I have watched in nursing homes when elderly are forced fed protein and no weight gain, and most specifically no muscle mass results.
Aside from the need for proper digestive factors being present there is the need for exercise. Since hormone levels decrease in the elderly, aside from growth hormone supplementation, which is not feasible due to cost and controls by the government, the only hope to stimulate HGC is through exercise, which of course many elderly cannot do. Hence a negative declining spirial occurs leading to debility..
“God is the basis of life, life is the basis of energy, energy is the basis of matter.”... Carey Reams