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What are consequences of a zinc deficient diet?

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The symptoms of zinc deficienc...

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Which mineral protects against oxidative damage and also helps synthesize thyroid hormone?


A) Copper
B) Manganese
C) Selenium
D) Zinc

E) C) and D)
F) A) and D)

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____________is needed to activate enzymes and in the production of uric acid.


A) Chromium
B) Molybdenum
C) Selenium
D) Zinc

E) A) and B)
F) B) and C)

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How can a person increase their intake of dietary iron?

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The best sources of absorbable iron are read meats and organ meats such as liver and kidney.Good nonheme sources are legumes,dried fruits,leafy greens,and fortified grain products.Consuming these foods with vitamin C (e.g.orange juice)and without foods containing phytates,oxalates or polyphenols (e.g.in tea)will enhance absorption.

Why are adequate intakes of iodine essential to good health? What are characteristics of iodine deficiencies?

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Iodine is needed for synthesis of thyroi...

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Which of the following is a true statement about iron requirements?


A) The RDA for young adult women is higher than the RDA young adult men.
B) For adolescents 14 to 18 years-of-age,the RDA is the same for males and females.
C) Iron requirements increase after menopause.
D) Babies should not be fed iron-containing formulas,because of the risk of toxicity.

E) A) and B)
F) All of the above

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For which population groups is iron deficiency most likely? Why?

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Iron deficiency is most common in women ...

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Which of the following would NOT enhance absorption of the iron found in supplements?


A) Consuming the supplement with a meal containing beef
B) Taking it with a calcium supplement
C) Taking the supplement with a meal containing fish
D) Consuming it with orange juice

E) All of the above
F) B) and C)

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What is a goitrogen? What are common sources?

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Goitrogens are substances in food that interfere with the utilization of iodine or with thyroid function.Common sources include turnips,rutabaga,cabbage,cassava,and millet.

Which statement about chromium supplementation is the most accurate?


A) Supplementation may improve the symptoms of type 2 diabetes.
B) Chromium supplementation increases lean body mass.
C) It leads to weight loss.
D) It may improve athletic performance.

E) A) and D)
F) None of the above

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Why is fluoride commonly added to drinking water?

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Fluoride is essential for bone and denta...

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Which of the following is NOT a true statement?


A) Cooking in iron skillets can provide dietary iron.
B) Vitamin C enhances iron absorption.
C) Phytates in cereal enhance the absorption of iron.
D) Calcium supplements decrease iron absorption.

E) B) and D)
F) None of the above

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Which of the following statements is true regarding copper absorption?


A) Zinc promotes the absorption of copper.
B) About 80% of copper is absorbed.
C) Vitamin C enhances copper absorption.
D) By inhibiting zinc absorption,phytates may enhance the copper absorption.

E) C) and D)
F) B) and D)

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Of the following,the best source of chromium is:


A) dairy.
B) whole grains.
C) vegetables.
D) fruits.

E) A) and B)
F) None of the above

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B

Which of the following statements about Keshan disease is FALSE?


A) A virus appears to be involved.
B) It causes an enlarged heart and poor heart function.
C) Middle aged men are most at risk.
D) Keshan disease occurred in areas of China where soil selenium is very low.

E) A) and B)
F) A) and C)

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What are good dietary sources of iodine?

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Most of the iodine in the Nort...

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What factors enhance iron absorption? What are factors that interfere with iron absorption?

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Enhance absorption: consuming heme iron ...

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The following are physiologic roles of copper EXCEPT:


A) connective tissue synthesis.
B) maintenance of heart muscle.
C) normal sexual development.
D) functioning of the central nervous system.

E) B) and C)
F) None of the above

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Zinc deficiency in Iranian and Egyptian men occurred because:


A) they did not eat meat.
B) the diet was low in zinc since local soils were low in zinc.
C) they consumed diets high in animal protein,which inhibits zinc absorption.
D) phytates in the diet bound zinc,decreasing its bioavailability.

E) All of the above
F) A) and B)

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Iodine deficiency during pregnancy may cause ____________ in the offspring.


A) cretinism
B) neural tube defects
C) fetal goiter syndrome
D) hypoglycemia

E) A) and B)
F) B) and C)

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