Which of the following is a characteristic of vitamin D nutrition?
a. Vitamin D deficiency may be created by a calcium deficiency
b. Only about one-half of the world's population relies on sunlight to maintain adequate vitamin D nutrition
c. Prolonged exposure to sunlight degrades the vitamin D precursor in skin, thus preventing vitamin D toxicity
d. In people living in northern U.S. cities, vitamin D stores from synthesis during the summer are usually sufficient to meet the needs during the winter
e. Pigments in dark skins increase vitamin D synthesis.
Question 2
Which of the following is a feature of vitamin D?
a. The bioavailability of vitamin D from soy milk is low
b. Lifeguards on southern beaches have increased risk for vitamin D toxicity
c. Most adults living in the southern United States need small amounts of dietary vitamin D
d. The average consumption in the United States does not meet the recommended intake
e. Taking vitamin D on an empty stomach improves absorption by as much as 50.
Synthesis of the active hormone formed from vitamin D or its precursor in skin.
An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord
Complications of Enteral Nutrition
Carrots are a good source of vitamin A
potatoes as a very good source of vitamin B6
Pathway for vitamin D activation