Why are children more likely than others to be affected by vitamin A toxicity?
What will be an ideal response?
Excessive vitamin A during pregnancy leads to abnormal cell death in the spinal cord, which increases the risk of birth defects such as spina bifida and cleft palate. In such cases, vitamin A is considered a teratogen. High intakes (10,000 IU of supplemental vitamin A daily, equivalent to roughly four times the RDA for women) before the seventh week of pregnancy appear to be the most damaging. For this reason, vitamin A is not given as a supplement in the first trimester of pregnancy without specific evidence of deficiency, which is rare.
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Target behaviors in the prevention of overweight or obesity from birth would include all of the following EXCEPT:
a. limiting sugary beverages. b. encouraging consumption of fruits and vegetables. c. skipping breakfast every day. d. limiting portion sizes. e. eating a fiber-rich diet.
Chyme is the semiliquid, partially digested food mass that leaves the stomach and enters the
A) villi. B) small intestine. C) gall bladder. D) large intestine.
How is vitamin E thought to play a role in reducing the risk of heart disease?
a. It slows oxidation of low-density lipoproteins. b. It interferes with cholesterol synthesis by the liver. c. It inhibits absorption of dietary cholesterol. d. It enhances the inflammatory response. e. It speeds removal of blood cholesterol by the liver.
Lifestyle modifications reduce blood pressure, enhance the efficacy of antihypertensive medications, and decrease cardiovascular risk. List lifestyle modifications that have been shown to lower blood pressure
What will be an ideal response?