Vitamin C has an RDA of 75 mg for females ages 51-70. This indicates:
a. nutrient value estimated to meet the needs of half of healthy people
b. average amount of vitamin C adequate to meet needs of 97-98% of healthy people
c. used when a RDA cannot be determined
d. the upper limit of a nutrient that should not present risk of negative health effects
Ans: b. average amount of vitamin C adequate to meet needs of 97-98% of healthy people
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Indicate whether the statement is true or false
Which foods are high in beta-carotene?
a. spinach, kale, and carrots b. brown rice, chicken, and pork c. milk and yogurt d. shrimp and fish e. peanut butter, almonds, and pine nuts
The primary difficulty in predicting the benefits of dietary changes and how they will affect gene expression is:
a. not everyone eats the same. b. not everyone responds the same to environmental exposures. c. there is a great variety of intake from supplements currently. d. There is no difficulty in predicting the benefits.