Chapter 18

Question 1

Dietary supplement

Answer 1

A substance that completes or makes an addition to daily dietary intake

Question 2

Estimated Average Requirement (EAR)

Answer 2

The average daily nutrient intake level that is estimated to meet the requirement of half the healthy individuals who are in a particular life stage and gender group

Question 3

Recommended Dietary Allowance (RDA)

Answer 3

The average daily nutrient intake level that is sufficient to meet the nutrient requirement of nearly all (97-98%) healthy individuals who are in a particular life stage and gender group

Question 4

Adequate Intake (Al)

Answer 4

A recommended average daily nutrient intake level, based on observed (or experimentally determined) approximations or estimates of nutrient intake that are assumed to be adequate for a group (or groups) of healthy people. This measure is used when RDA cannot be determined.

Question 5

Tolerable Upper Intake Level (UL)

Answer 5

The highest average daily nutrient intake level likely to pose no risk of adverse health affects to almost all individuals in a particular life stage and gender group. As intake increases above the UL, the potential risk of adverse health effects increases.

Question 6

Nutrients with the Greatest Potential for Excess Dosage in Dietary Supplements

Answer 6

1. Vitamin A
2. Vitamin D
3. Iron
4. Zinc

Question 7

As a general rule of thumb, the safe level of most nutrients in a multi-vit/min should
be around 100% of the DV. However, there are some exceptions, including:

Answer 7

Vitamin A (present only as retinol) should be less than 100% of the DV.
◆ β-carotene is contraindicated in smokers.
◆ Calcium should be at low levels or absent in a multi-vit/min.

Question 8

Ergogenic

Answer 8

work generating