A meal contains the following amounts of long-chain fatty acids: 3 g EPA, 1 g DHA, 5 g stearic acid, 4 g linolenic acid, 10 g linoleic acid, and 3 g arachidonic acid. What is the approximate ratio of omega-6 to omega-3 fatty acids?
a. 0.4 : 1.0 b. 1.0 : 1.0
c. 1.6 : 1.0 d. 2.4 : 1.0
c
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Which of the following is a characteristic of heavy metals in the U.S. food supply?
a. Virtually all fish contain trace amounts of mercury. b. Mercury contamination of fish is most severe in tuna. c. Toxicity is most severe in the elderly population group. d. Contamination is usually greater in farm-raised fish than in ocean fish. e. Older fish are generally safer than younger fish, since they have had more time to excrete the mercury.
All of the following factors are theorized to contribute to the poverty-obesity paradox EXCEPT
A) the increased tendency of low-income people to purchase inexpensive, energy-dense foods that have a longer shelf life. B) the increased tendency of low-income people to spend too much money on relatively expensive sources of protein, such as meats, poultry, and fish. C) the increased level of stress experienced by low-income people, which results in the frequent release of hormones that slow metabolism and increase appetite, and may deplete their ability to make thoughtful choices about foods. D) the increased tendency of low-income people to live in regions that are not served by markets selling fresh, affordable food.
Ionized calcium is removed from the blood via each of the following except ____.?
A) ?secretion into the digestive tract B) ?excretion in the urine C) ?mixed into perspiration D) ?uptake by tissues
Larry has a family history of cancer and wants to decrease his chances of getting it. Which of the following foods may decrease risk of prostate cancer?
a. Milk b. Pork chop c. Tomato d. Oranges