BIOD 121 Portage module 4 Questions & Answers: Guaranteed A+ Guide
essential vitamins 13 vitamins that animal cells need but can't synthesize found in both plant and animal sources vitamins produced by the body vitamin K and biotin (gut flora) vitamin D (skin) vitamin A (from beta carotene) niacin (tryptophan) two criteria for vitamins 1. must be consumed in the diet to maintain health. 2. symptoms of deficiency occur in its absence enrichment adding nutrients back that have been lost to processing fortification adding nutrient not naturally present in a food Fat soluble vitamins Vitamins A, D, E, K stored in liver and adipose tissue excess consumption could lead to toxic levels two forms of vitamin a 1. Preformed Vitamin A (retinol/retinal), found in foods and animal products: liver, fish, fish oils, fortified milk, yogurt, and eggs 2. Provitamin A or Carotene, the pigment in yellow, orange, and deep green fruits or vegetables vitamin A functions Vision skin and epithelial health growth, development, reproduction disease prevention two forms of vitamin D
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