Which vitamin does the body produce naturally?
a. Vitamin C
b. Vitamin B6
c. Vitamin D
d. Vitamin A
C
Vitamin D is the only vitamin that the body can produce naturally—if there is enough exposure to the sun. Few people, and especially few older adults, who may have lost some mobility and rarely leave the house or nursing home, have enough sun exposure, and vitamin D occurs naturally in very few foods, so supplements or foods fortified with vitamin D may be necessary. Vitamins C, B6, and A cannot be made by the body naturally and must be ingested, preferably in food or by taking vitamins supplements.
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