HSS 2342 Lecture Notes - Lecture 11: Pepsin, Cretinism, Manganese
28 Mar 2017
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Document Summary
Nutrients for energy metabolism: overview of micronutrients. Vitamins are organic, share structure similarities with macronutrients, one unit (never in chains like glucose), coenzymes. Both do not yield energy, but can assist enzymes to release energy. Vitamins can be broken down, however minerals cannot and are eliminated in feces, sweat, or urine. Minerals: micrograms (ug) to grams (g: bioavailability. Includes the amount in food that is absorbed and used by the body. Source of the nutrient: doses and toxicity. As your progress in the direction of more, the effect gets better and better, with no end in sight (real life is seldom, if ever, like this). As your progress in the direction of more, the effect reaches a maximum and then a plateau, becoming better with higher doses. As you progress in the direction of more, the effect reaches an optimum at some intermediate dose and then declines, showing that more is better up to a point and then harmful.
