Since the 1950s, rates of heart disease have decreased 60% due to all of the following reasons EXCEPT:
a. declines in blood cholesterol levels.
b. reduced rates of smoking.
c. advances in medications.
d. decline in average body weights.
d
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Unsaturated fatty acids _____
A. are liquid at room temperature B. Stack well or becoem solid at room temp C. Have no double bonds D. Absent in plant oils
Which of the following is true about the fate of fatty acids after their absorption?
A. Fatty acids of less than 12 carbons enter the lymphatic system packaged in chylomicrons. B. Fatty acids of 16 or more carbons enter the lymphatic system directly and then enter the blood via the aorta. C. Fatty acids of less than 12 carbons enter the blood and then the liver via the hepatic portal vein. D. Fatty acids of 16 or more carbons enter the blood and then the liver via the hepatic portal vein.
Patients with hiatal hernia may develop anemia because:
a. iron absorption is reduced. b. gastritis may cause bleeding. c. iron stores turn over more quickly. d. patients have an aversion to foods that are good sources of iron.
One hallmark of a credible nutrition article is that it ____
a. describes results of a study of a sufficiently large group of people b. analyzes research studies that are at least ten years old c. presents results that differ remarkably from those of similar studies d. appears in a respected newspaper with a large national circulation e. includes several cases of anecdotal support