BIOL-102 Lecture Notes - Lecture 3: World Health Organization

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Using food guides: minimum # of servings, no info on fats or sugar listed, no info on the serving sizes needed, many options in terms of variety. Nutrient recommendations: dietary reference intakes (dri): 4 lists of values to measuring the intakes of people. Estimated average requirements (ear): nutrient intake goals for individuals in all healthy people. The dri committee has recommended intakes for: vitamins, minerals, carbohydrates, fibre, lipids, protein, water, energy. Established dri values. study: a laboratory study in which a person is fed a diet and the intake and excretion of a nutrients are then measured. Determines requirements of average person. cover majority of population. set for energy (cal) requirements are limited: valid for nutrients like calcium that don"t change while they"re in the body. The committee advises adjusting nutrient intakes in circumstances for nutrient needs. A diet that consistently provides the rda or ai amount for a nutrient is likely to be sufficient in the nutrient.

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