Which mineral is a central component of vitamin B12?
A) Iron
B) Copper
C) Cobalt
D) Zinc
E) Molybdenum
C
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Which of the following statements is false?
A. Calcium is needed for muscle contraction and blood clot formation. B. Efforts to reduce the risk of osteoporosis should begin early in life. C. People with African ancestry have a higher risk of osteoporosis than people with Asian or white ancestry. D. Women generally have the highest risk of osteoporosis after menopause.
A limitation in using the body mass index is that it
A) is not accurate when used on women. B) is difficult to determine. C) does not take body composition into account. D) is not a good predictor of health risks.
The life stage for which an RDA or AI value has been established for total lipid intake is:
1.Infancy 2.Early childhood 3.Adolescence 4.Pregnancy 5.Older adulthood
Which of the following is a characteristic of iron absorption?
a. MPF in plant foods enhances overall iron absorption b. Ferritin in red meat interferes with ferrous iron absorption c. Absorption of heme iron is about 50% higher than nonheme iron d. Transferrin released from pancreatic juice regulates iron uptake from mucosal cells