Do high intakes of iron from foods pose a danger to healthy people?
a. Yes, if they include large amounts of fortified grains and cereals
b. No, because the body adjusts the amount of iron absorbed.
c. Yes, because of high intakes of vitamin C supplements among many people.
d. No, because non-heme iron blocks the absorption of heme iron.
e. Yes, because iron toxicity is a relatively common occurrence.
b
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In order for the Dietary Guidelines for Americans to be implemented, they must be ____
a. promoted and glamorized by the media b. translated into food-specific behaviors for consumers c. compared with the Dietary Reference Intakes d. reduced in number so they are easier to remember
Alternative, sustainable agricultural practices include: a. focusing on only a few crop varieties
b. using fertilizers generously. c. increased marketing of meat from livestock. d. subsidizing large-scale farms with industry customers. e. alternating crop species.
Which of the following foods or beverages is not a major source of added sugars in American diets?
A. Fresh fruit B. Energy drinks C. Cookies D. Candy
Studying phenomena within living organisms is referred to as studies conducted _____
a. in vitro b. in vivo c. randomly d. organically