This visual represents a toxicity of ______ leading the toxicity disease _______.
a) beta-carotene, hypercarotenemia
b) niacin, pellagra
c) vitamin A, xerophthalmia
d) vitamin D, rickets
Ans: a) beta-carotene, hypercarotenemia
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Nonnutrient substances found in plant foods that may demonstrate biological activity in the body are commonly known as
a. bioenhancements b. inorganic fibers c. phytochemicals d. phytoactive chemicals e. nonnutritive additives
Scientists study 200 adults who have type 2 diabetes and 200 adults who have similar characteristics but do not have the disease. For 18 months, the researchers collect lifestyle information on all the study participants. According to the study's findings, the adults with type 2 diabetes were 25% less physically active than their counterparts who did not have type 2 diabetes. This is an example of a(n) ________ study.
A. case-control B. anecdotal C. inverse relationship D. prospective
Which of the following is a feature of vitamin A nutrition?
a. Deficiency is common in both the United States and many developing countries. b. Toxicity occurs from excess intakes of preformed vitamin A as well as beta-carotene. c. Supplements are recommended for certain groups of infants and children infected with the measles in the United States. d. In poor countries, supplements prevent and cure night blindness but offer little protection against malaria and lung disease. e. The risk of toxicity is so high that most vitamin A supplements are by prescription only.
________ are protein-based substances that enhance digestion by making chemical reactions more likely to happen.
A. Hormones B. Neurotransmitters C. Emulsifiers D. Enzymes