Data from
the Cornell University China Health Project and other studies would suggest that
we Americans consume more protein and more fat than is good for us. Interestingly
excesses of both of these could negatively impact bone. Excesses of protein, in
particular, contribute to chronic low-grade metabolic acidosis and because of
this lead to bone loss over time. On the other hand, recent research also documents
that too little protein limits bone health. So, how much protein is the right
amount? And how much fat constitutes a reasonable intake level?
Our research
suggests that an ideal protein intake is at, or near, the RDA recommended level
of some 50 grams for females and 63 grams for males. Most of us consume nearly
twice this level. Significant numbers of us, however, consume too little protein
(many elderly, those who under-eat, some vegans, etc.). As for fat intake we probably
consume twice or more the ideal level. While most of us consume some 100 grams
of fat a day, the ideal intake would be 35 to 50 grams (depending on body size
and activity).
