Answer to Question 1
The Recommended Dietary Allowance (RDA) is the amount of the nutrient that will meet the needs of almost every
healthy person in a specic age and gender group. The Adequate Intake (AI) is used when the RDA is not known
because scientic data aren't strong enough to produce a specic recommendation, yet there is enough evidence to
give a general guideline. The Estimated Average Requirement (EAR) is the value estimated to satisfy the needs of
50 of people in a given age group. The EAR is used primarily to establish the RDA. The Tolerable Upper Intake
Level (UL) is the maximal amount of a nutrient that a person can take without risking adverse health effects
Answer to Question 2
Vitamins serve many important functions in the body, including regulation of growth and metabolism. The class of
water-soluble vitamins consists of several B-complex vitamins and vitamin C. The fat-soluble vitamins are A, D, E,
and K. A well-balanced diet provides all of the vitamins known to be necessary for good health, and supplements
containing vitamins are not necessary.
(a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest
Difference between....
What are examples of ideal forms?
The population of Asia increases rapidly, the demand for food and water is also growing
Other Body Systems Help You Use Digested Nutrients Body systems
Commonly Used Food Additives