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What is a vitamin? |
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A vitamin is an organic compound required in tiny amounts for essential metabolic reactions in a living organism. The term vitamin does not include other essential nutrients such as dietary minerals, essential fatty acids, or essential amino acids, nor does it encompass the large number of other nutrients that promote health but that are not essential for life.
What do vitamins do?Vitamins are bio-molecules that act both as catalysts and substrates in chemical reactions. When acting as a catalyst, vitamins are bound to enzymes and are called cofactors. For example, vitamin K is part of the proteases involved in blood clotting. Vitamins also act as coenzymes to carry chemical groups between enzymes. For example, folic acid carries various forms of carbon group – methyl, formyl and methylene - in the cell.
Dietary VitaminsUntil the 1900s, vitamins were obtained solely through food intake, and changes in diet (which, for example, could occur during a particular growing season) can alter the types and amounts of vitamins ingested. Vitamins have been produced as commodity chemicals and made widely available as inexpensive pills for several decades, allowing supplementation of the dietary intake.
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30 Lbs Radish Sprouting Seed - Certified Organic - 30 Lb. Nitrogen Packed Re-sealable Bucket - High Germination Rate - Radish Seed for Sprouting Sprouts, Cooking, Soup, Food Storage, Hydroponics, Gardening & More. Radish Sprouts Are High in Vitamins A, B-1, B-6 and C, Folic and Pantothenic Acids, Niacin, Potassium, Iron and Phosphorous & Chlorophyll.
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Pantothenic Acid 100 Tabs 1000 mg ( Vitamin B-5 Sustained Release ) By Kal ( gaining weight, Apprehension, Hypoglycemia, Tendency, Moments of confusion, Poor memory, Feelings of frustration, Alternating diarrhea and constipation, Osteoporosis, immune diseases hepatitis, heart fluttering, headedness, Low blood pressure, Headaches, Alcohol intolerance. )
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