What food purchasing behaviors are associated with higher and lower incomes in national food consumption surveys?
Households with incomes below $20,000 a year spend about $1,400 per capita on food, buying more white bread, bacon, pork chops, luncheon meats, and eggs per person than the U.S. average. On the other end of the socioeconomic spectrum, households with incomes more than $100,000 annually spend over $4,725 on food, with above-average purchases in almost every category, especially expensive cuts of beef, lamb, fresh fish and seafood, dairy products, biscuits/rolls, fruits, prepared salads, nuts, and snack foods. Upscale consumers are more likely to be exposed to unique culinary ideas when dining out in trendy full-service restaurants and to be willing to pay for new or unusual food items.
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Which of the following is not a role of sodium in a sports drink?
a. to reduce hyperthermia b. to maintain thirst (and therefore promote drinking) c. to prevent hyponatremia d. to increase palatability e. to increase retention of fluid
Why is a low-fat diet likely to decrease vitamin A and carotenoid absorption?
a. The enzymes needed for digestion are in short supply. b. The hormones needed for digestion are not available. c. The body is unable to synthesize protein carriers. d. Absorption requires dietary lipid and bile.
The best way to measure energy expenditure at home is the
A) Harris-Benedict Equation. B) indirect calorimetry using a collection bag. C) indirect calorimetry using a metabolic cart. D) direct calorimetry using a metabolic chamber.
Define each of the four components currently under investigation to maintain health of the colon: resistant starches, prebiotics, probiotics, and synbiotics