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Old 03-06-2007, 12:27 AM
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Default Nutrition terms

  • Estimated Average Requirements (ERA): Average levels of daily nutrition intake to meet the requirement of one half of the healthy individuals in a particular life stage and gender group. In addition to assessing nutrition adequacy on intakes population groups, the ERA provides a useful value for determing the prevalence of inadequate nutrition intake by the proportion of the population with intakes below this value

  • Recommended Dietary Allowance (RDA): The average faily nutrient intake level sufficient to meet the requirements of nealy all (97% to 98%) healthy individuals in a particular life stage and gender group. For most nutrients, this valus represents the ERA plus two standard deviations of the requirement.

  • Adequate Intake (AI): The AI provides a nutritional goal when no RDA exists. It represents a recommended average daily nutrient intake level based on observed or experimentally determined approximations or estimate of nutrient intake by a group (or groups) of apparently healthy people that are assumed to be adequate; the AI is used when an RDA cannot be determined. Low risk exists when intake is at or above the AI level.

  • Tolerable Upper Intake Level (UL): The highest average daily nutrient intake level likely to pose no risk of adverse health effects to almost all individuals in the specified gender and life - stage rup of the general population. As intake increases above the UL, the potential risk of adverse effects increases.
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Old 03-06-2007, 02:31 AM
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I have a question regarding UL, what are the potential risk of adverse effects that are increased? Is this like obesity, high blood pressure, etc?
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Old 03-06-2007, 02:43 AM
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certain vitamins like vitamin A are fat soluable which means that excess storage do not get passed through your system but rather stored. Extremely high levels of Vitamin A can be toxic.
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Old 03-06-2007, 02:43 AM
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ahh i understand now. thank you very much!
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