A low-fat diet increases vitamin A and carotenoid absorption (and thus bioavailability) because the body is unable to form micelles.
Indicate whether the statement is true or false
Q. 2Eating a low-kcalorie or low-carbohydrate diet can decrease cholesterol synthesis in _____.
a. everyone
b. adults over 50
c. some people
d. children under the age of 6
Q. 3Which vitamin is required by the enzyme that converts pyruvate to oxaloacetate, a key step in gluconeogenesis?
a. Thiamin
b. Niacin
c. Biotin
d. Vitamin B12
Q. 4Retinol can be converted to a carotenoid.
Indicate whether the statement is true or false
Q. 5In the body, cholesterol is incorporated into cell membranes and is used to synthesize many hormones and _____.
a. vitamin C
b. digestive enzymes
c. vitamin K
d. bile acids
Q. 6In the movie Rocky, the main character drank shakes with raw eggs. Consequently, the bioavailability of _____ may have been reduced by the _____ in the eggs.
a. thiamin, avidin
b. thiamin, antithiamin factors
c. biotin, avidin
d. biotin, cobalamin
Q. 7Fat-soluble vitamins circulate from the gastrointestinal tract via lymph.
Indicate whether the statement is true or false
Q. 8Because lipids are not water soluble, they require _____ to facilitate their circulation in the body.
a. phospholipids
b. sodium
c. bile acids
d. cholesterol esters
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