1. muscle weakness 2. paralysis 3. V. Calcium A. Function 1. Mineralization of bones and teeth a. Absorption decreases with age due to decline in synthesis of 7-dehydrocholesterol 3. Sufficient stomach acid.
Excessive consumption can interfere with iron absorption.
Pathological decrease in bone mass 1. Exercise and osteoporosis a. Bone mass as an adult depends on the interactions of several factors. Dependent on total hours of vigorous, weight bearing activity. Even none weight bearing exercise can improve bone density due to increases in muscle strength. High protein has a negative impact on calcium balance.