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.
ANS: C
You might also like to view...
A set of nutrient standards designed specifically for use on food labels is called the _____
a. Recommended Dietary Allowances b. Dietary Reference Intakes c. Daily Values d. FAO recommendations e. Measured Nutrition Standard
Jasmine Singh is 25 years old. She has had frequent urinary tract infections over the past 3 years. She makes an appointment with her physician after an episode of nausea, vomiting, and abdominal pain. Due to her history of urinary tract infections, Jasmine most likely has ____ stones
A) struvite B) cystine C) uric acid D) calcium oxalate
Which of the following contains the least fluoride?
A. White grape juice B. Brewed coffee C. Light beer D. Brewed black tea
This example of the relationship between RDA and EAR reveals that the RDA _____
1.is twice the EAR
2.is 125% of the EAR
3.covers most needs
4.equals the DRI
5.is less than the DRI