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16 Cards in this Set
- Front
- Back
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Explain the basis for differentiating between major and trace minerals
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-major minerals are present in the body in larger amounts--- calcium is the most abundant
-trace minerals are present in the body in smaller amounts |
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describe the ways in which mineral absorption can be decreased
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absorption can be prevented when fiber & phytate, oxalate, and polyphenols bind to minerals
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explain why high levels of minerals in general can be undesirable
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minerals can build to toxic levels slowly over time
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list the function of calcium and explain how those functions are connected to how levels are controlled in the body
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necessary in bones and teeth, bone is necessary for body structure, but it also serves as a reservoir to help maintain blood calcium levels
-- bone is a storage site for calcium |
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osteoporosis
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chronic disease- brittle bones that can lead to fractures
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explain why women are at greater risk for osteoporosis that men
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have acceleration of bone density loss at menopause
have lower total bone mass to start with |
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Explain the roles that calcium plays in prevention of osteoporosis and why the calcium RDA changes with age
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if maximize bone density early, the more bone you have, the more bone you can loose.
higher amts of intake recommended at early and late stages of life. |
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List examples of good dietary sources and explain why some sources look better than they really are
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good sources: dairy products, canned fish with soft bones, greens, etc.
some look like they would be really good but the percent of calcium absorbed could be really low |
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explain the relationship between sodium and potassium and their relationship to blood pressure.
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sodium & potassium maintain fluid balance and therefore blood pressure
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Compare the RDA's for sodium and potassium to typical US intake and discuss what it would take for the typical american to meet the recommended levels
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-RDA for sodium: max is 1500 mg/day but average american intake is 2400-7200 mg
-RDA for potassium is 4700 mg/day while average american intake is 2400 mg |
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List the compounds of the DASH diet and explain why it is believed to be beneficial
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-5 (1 cup) servings of fruits and vegetables/ day
-2.7 (1cup) servings of low fat dairy -low fat/ saturated fat -sodium restricted to atleast 2400 mg/day |
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what is the function of iron
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transport of oxygen in blood via hemoglobin and muscles via myoglobin
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list its deficiency symptoms and those at risk and why
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anemia
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scurvy
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vitamin c deficiency
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beri beri
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thiamin deficiency
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pellagra
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niacin deficiency
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