Dietary Reference Intakes part 1.pptx

Dietary Reference Intakes part 1.pptx - Dietary Reference...

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Dietary Reference Intakes Part 1
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Deficient: Direct effect Little or no intake Over weeks to years Resulting in deficiency diseases Examples Vitamin C  scurvy Niacin  pellagra Thiamin  beriberi
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Marginal: Indirect effect Less than optimal intake, over years, increasing risk for chronic disease Less than or equal to 60% of the DRI For protein, vitamins, and minerals Why 60%? As intake moves below this level of intake, it becomes less likely that one’s need for that nutrient it being met Not likely to result in a true deficiency disease
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Marginal Does not predict development of deficiency disease Instead, marginal consumption of some nutrients is associated with… What factors can contribute to marginal intakes in the US?
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Overconsumption: Indirect effect Greater than optimal intake, over years, increasing risk for chronic disease
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Excess: Direct effect Much greater than optimal intake, over weeks to years, that may result in a
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