Which of the following statements describes one aspect of mineral nutrition of older adults?
a. Zinc intake is adequate for about 95% of this group.
b. Iron absorption is reduced due to low stomach acidity.
c. Calcium intakes of females are near the RDA for this group.
d. Calcium allowances for this group have recently been increased by the Committee on Dietary Reference Intakes.
e. Folate excesses are fairly common.
ANS: B
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Zelda is a marathon runner. She completes the marathon in 2 hours and 30 minutes. Which of the following is true regarding her fuel use during the marathon?
A. If she runs out of muscle glycogen at the 2-hour mark, she will not feel fatigue. B. Amino acids may supply up to 10% of energy needs. C. Anaerobic glucose breakdown, using muscle glycogen, will provide most of the ATP for the marathon. D. Liver glycogen is the preferred fuel during intense muscular activity lasting less than 2 hours.
A common cause of diarrhea in patients receiving enteral tube feedings is:
a. soluble fiber in the formula. b. use of certain medications. c. decreased fluid absorption from the liquid diet. d. failure to elevate the patient's head during feedings.
The inorganic form of arsenic is poisonous to humans
Indicate whether the statement is true or false
If a nutrient has an Adequate Intake value instead of a Recommended Dietary Allowance value, it means that:
A) there is insufficient scientific evidence to establish an Estimated Average Requirement value and a Recommended Dietary Allowance value for that nutrient. B) rigorous scientific studies have set a conclusive dietary intake goal for that nutrient. C) the nutrient is toxic and requires that a tolerable upper limit be set for its intake to avoid nutrient overconsumption and toxicity. D) consumption limits need to be provided for that nutrient for those who take supplements or consume large amounts of fortified foods.