FSCN 1012 Lecture Notes - Lecture 3: Vitamin B6, Pantothenic Acid, Unpaired Electron
7 Mar 2020
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Document Summary
Have no particular chemical structure in common. Dissolve and stored in the body s fatty tissues. Dietary lipids are a source of fat-soluble vitamins. Should not be consumed in excess without medical supervision. Are not excreted easily from the body. Thiamine (b1), riboflavin (b2) , pyridoxine (b6), niacin, pantothenic acid, biotin, folic acid, and cobalamin (b12) Excess intake is voided in the urine. A broad array of vitamins are readily available in the foods consumed in a well- balanced diet, so little chance occurs for a long-term vitamin deficiency. Serve as essential links and regulators in numerous metabolic reactions that release energy from food. A highly chemically reactive atom or molecule that contains at least 1 unpaired electron in its outer valence shell. An accumulation of free radicals increases the potential for cellular damage. This increases the likelihood of cellular deterioration associated with aging, cancer, diabetes, cad and exercise-related damage. Vitamins a, c, e and beta-carotene serve as antioxidants.
