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Research has shown that the risk for neural tube defects is lowered by taking supplements of

ultraviolet light

Riboflavin is most easily destroyed when exposed to

Attaches to an enzyme and allows a chemical reaction to take place

Which of the following describes the basic function of a coenzyme?


The appearance of vitamin B12 deficiency symptoms may be delayed due to high intake of supplements of

Hot dog

Of the following foods, which would be the only source of vitamin B12?

soy milk

which is the richest food source of thiamin


Tryptophan can be used in the body to synthesize

vitamin A

Cooking a food in liberal amounts of water is least likely to affect the vitamin content of

vitamin b6

Irreversible nerve damage has been reported in people taking large doses of


What is the primary excretory route for the water-soluble vitamins?

green leafy vegetables

what is the food highest in folate

rough skin

pellagra means?


Of the following commonly eaten foods, which makes the greatest contribution to riboflavin intake

Coenzymes needed for energy metabolism are produced in insufficient amounts

Which of the following explains why B vitamin deficiencies lead to lack of energy?


Beriberi results from a deficiency of

vitamin B12 or folate

A similar type of anemia is produced when there is a deficiency of either

nucleic acid synthesis

Which of the following activities is shared by vitamin B12 and folate


Among the following, which would be the best source of Niacin Equivalents


For every man who has type I osteoporosis, about how many women have it?


A person seeking good sources of vitamin A would not select


All of the following organs are required for the complete synthesis of activated vitamin D except

free radical

A molecule that is unstable and highly reactive because it contains unpaired electrons

Vitamin E

Increasing the amount of polyunsaturated fats in the diet increases the need for vitamin

Consuming high-dose vitamin A supplements

Which of the following is likely to induce vitamin A toxicity in adults?

green leafy vegetables

What type of foods should be controlled in individuals taking anticoagulant medicines


Which of the following is most likely to occur from a prolonged dietary deficiency of vitamin A?

prevented possible bleeding

Thomas received an intramuscular injection of vitamin K, and she wondered why this was done, as it made him cry. You explained that it

skin yellowing

Which of the following is the most likely side effect for a person who regularly consumes large quantities of carrots or carrot juice?


A protein needed for blood clot formation


Which of the following is the name of the vitamin A compound that is active in the visual response


Approximately what percentage of the body's calcium is found in the blood

Vitamin D

A child with bowed legs is likely deficient in vitamin


All of the following are good plant sources of calcium for the body except


John is looking to increase his dietary sources of vitamin C. However, he expresses a strong dislike for all citrus fruits. Which of the following shopping lists would you recommend?


What is the major carrier of the fat-soluble vitamins from the intestinal epithelial cell to the circulation?

bleeding gums

Which of the following is an early sign of vitamin C deficiency?

Vitamin K

Which of the following vitamins is synthesized by intestinal bacteria?

female gender

Protective factors for osteoporosis include all of the following except

vegetable oils

Which of the following are major sources of vitamin E in the diet?

vitamin b3

pellagra results from a deficiency of

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