NUTR 1010 Study Guide - Final Guide: Stir Frying, Oxidative Stress, Scurvy

• School: University of Guelph
• Department: Nutrition
• Course: NUTR 1010
• Professor: Angela Wallace

Document Summary

March 10th lecture: what else does vitamin c do, vitamin c, is the major water-soluble antioxidant. It is water soluble, so it mostly works in the blood stream. Donating their electrons (without creating more free radicals) It"s hard to eat to(cid:454)i(cid:272) a(cid:373)ou(cid:374)ts (cid:271)ut e(cid:454)tra (cid:448)ita(cid:373)i(cid:374) c toilet. Fat soluble: water soluble vitamins, b vitamins, vitamin c, absorbed with facilitated or active transport, transported freely in the blood or with proteins, not stored in the body. Toxicity is unlikely: fat soluble vitamins, vitamin a, d, e & k, absorbed with fat in micelles, transported in lipoproteins or with protein transporters, stored in fat cells. Is found preformed from animal products or supplements or in precursor form from plant foods: preformed vitamin a compounds are known as, retinoids (retinol, retinal, retinoic acid, plants contain precursors to vitamin a known as, carotenoids (e. g. beta-carotene) Sources of pre-formed vitamin a: beta-carotene, yellow, orange & red pigments, a carotenoid.