All of the following are true regarding vitamin B6 EXCEPT:
a. toxicity symptoms include loss of feeling in fingers and toes.
b. it is needed for the conversion of trytophan to niacin.
c. it is needed for normal red blood cell formation.
d. it is stored in the liver.
Q. 2Which of the following is an inborn mechanism relating to food choices?
A) The ability to instinctively choose foods that provide all essential nutrients
B) A natural preference for bitter-tasting foods
C) An innate ability to choose a well-balanced diet
D) An innate ability to decide when and how much to eat
Q. 3All of the following are true regarding niacin EXCEPT:
a. a deficiency results in pellagra.
b. high doses lower HDL-cholesterol levels.
c. high doses result in flushing.
d. its precursor is tryptophan.
Q. 4The American consumption of fruits and vegetables has decreased since the 1970s.
Indicate whether the statement is true or false
Q. 5All of the following are true regarding water-soluble vitamins EXCEPT:
a. they include the B-complex vitamins and vitamin C.
b. excess amounts are usually excreted in the urine.
c. they are stored in body fat, the liver, and other parts of the body.
d. deficiency symptoms develop within weeks or months.
Q. 6Once a food has gained symbolic importance as a comfort or status food, its nutritional quality is of less concern to the consumer.
Indicate whether the statement is true or false
Q. 7All of the following are true regarding fat-soluble vitamins EXCEPT:
a. they are stored in body fat, the liver, and other parts of the body.
b. deficiency symptoms take longer to develop than those associated with water-soluble vitamins.
c. they include vitamins A, C, D, E, and K.
d. they can be highly toxic if consumed in excess.
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