What does the Tolerable Upper Intake Level of a nutrient represent?
a. The maximum amount allowed for fortifying a food
b. A number calculated by taking twice the RDA or three times the AI
c. The maximum allowable amount available in supplement form
d. The maximum amount from all sources that appears safe for most healthy people
d
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Which of the following is a feature of water and nutrition?
a. Water intoxication is rare but can result in death b. Water losses from the body are highest through the feces c. Chronic high intakes increase the risk for bladder cancer d. Soft water has significant concentrations of magnesium e. Hard water contributes substantial potassium
Which of the following factors increases the bioavailability of iron?
A. Consumption of tannins (from tea) B. Taking a medication that reduces acidity in the stomach C. Consumption of vitamin C D. Consumption of nonheme iron
Complete the diagram showing how retinal is used in the rod cells of the eye
_______ is the msot abundant carbohydrate.
A. Lactose B. Glucose C. Maltose D. Fructose