Describe the physiological demands that increase energy requirements during pregnancy.
What will be an ideal response?
Energy requirements during pregnancy increase mainly because of protein and fat tissue synthesis, and the energy cost of maintaining an expanding amount of metabolically active tissues. Protein synthesis primarily occurs in fetal, placental, uterine, and breast tissues. Most of the fat synthesized during pregnancy is used to build up maternal fat stores. Expanded metabolic activity related to the increased work of the mother's cardiovascular, respiratory, and renal systems is responsible for much of the increase in energy needed for basal metabolism. The fetus accounts for about a third of the increased energy needs of pregnancy.
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A dietitian is counseling a client with atherosclerosis on how to make therapeutic lifestyle changes. Which food item should the dietitian advise the client to choose less often?
A. soft or liquid margarine B. buttermilk C. whole eggs D. cottage cheese E. pasta
Which of the following describes a cathartic?
a. Strong laxative b. Drug that induces vomiting c. Device to measure skinfold thickness d. Device to measure the energy of foods e. Drug that reduces nausea
Biotin serves as a coenzyme for several enzymes involved in amino acid metabolism and the synthesis of glucose and fatty acids.
Answer the following statement true (T) or false (F)
The most common nutrient deficiency among athletes is:
a. iron. b. potassium. c. magnesium. d. vitamin C.