 Currently there are no studies on protein requirement in the elderly. In a recent nutrition survey conducted by national health and nutrition examination survey NHANES, the authors concluded that adults between the ages of 51 - 70 years old consumed an average on 1.0 gkgday ideal body weight of protein which represents about 15 of calories. Depending on the calculations used for ideal body weight some older adults could be getting higher or lower than requirement. There is no scientifically derived protein estimate for older adults. Therefore there is a need to measurer protein requirement in that population. 