The major provitamin form of vitamin A found in plant pigments is known as:

a. beta carotene.
b. chlorophyll.
c. retinoid.
d. beta xanthophyll.


ANS: A

Nutritional Science

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Lecithin is considered a nonvitamin

a. True b. False Indicate whether the statement is true or false

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After about three seconds of exercise, which substance is broken down to help regenerate ATP?

A) lactic acid B) pyruvic acid C) creatine phosphate (CP) D) glucose

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The interaction of folate status and MTHFR genotype with _______________ appears to be of critical importance.

Fill in the blank(s) with the appropriate word(s).

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What substances bind iron and decrease its absorption?

a. Probiotics in yogurt b. Vitamin C in fruits c. Myoglobin in meat d. Phytates in cereal grains

Nutritional Science