FCS 102 Lecture Notes - Lecture 2: Antibody, Cellular Respiration, Reproductive System
25 Aug 2016
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Document Summary
Nutrients: substances in food that are required or used by the body for one of the following reasons: energy (ex: carbohydrates, structure (ex: protein, regulation of chemical reactions (ex: vitamin d) Not all food components are nutrients such as additives or preservatives. Six main categories of nutrients: carbohydrates, proteins, lipids, water, vitamins, minerals. Macronutrients vs. micronutrients: miro: need small amounts; less than 1 gram a day, macro: need larger amounts; more than 1 gram a day. Essential, nonessential, and conditionally essential: essential: must be obtained by the diet. Body needs it and cannot make the required amount on its own. Ex: vitamins and minerals and amino acids: nonessential: the body can make it in necessary amounts. Ex: cholesterol: conditionally essential: a normally nonessential nutrient that becomes essential. Organic vs. inorganic: organic: contains carbon. Ex: carbohydrates, protein, lipids, vitamins: inorganic: does not contain carbon.
