NTDT200 Chapter Notes - Chapter 10-11: Malabsorption, Goblet Cell, Acne Vulgaris
6 Sep 2016
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Ch 10: water-soluble vitamins b vitamins and vitamin c. Vitamins = organic, essential nutrients required in small amounts by the body for health. Regulate body processes that support growth and maintain life. Structure vitamins are individual units (not linked) Function do not yield energy, but many can assist enzymes. Food contents measured in g or mg (not g) Similarities to macronutrients: vital to life, organic, available from foods. Bioavailability = rate and extent to which a nutrient is absorbed and used. Efficiency of digestion and time of transit through the gi tract. Method of food preparation (raw vs. cooked vs. processed) Source of nutrient (synthetic vs. fortified vs. natural) Precursors = inactive compounds that can be converted into active vitamins once inside the body; aka provitamins. Prolonged heating destroys b1 (thiamin) steam or microwave. Uv rays/light destroys b2 (riboflavin) do not store in glass containers. Oxygen destroys vitamin c store in airtight containers/wrappers.
