Proteins and amino acids
although protein requirements in older people must still be determined, 2 things are established. First the amount of body protein a person synthesizes each day decreases with age. Second, a redistribution of the relative amounts synthesized by the various organs takes place. Visceral tissue, for instance, makes a greater overall contribution to synthesized body protein in the old than in young adults. These observation suggest that the total protein requirement per unit of body weight drops with age. But actual measurements do not bear this out. Instead, they indicate that minimum protein needs of healthy adults do not change significantly during a normal lifetime.