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VITAMINS. By Zuzana Nováková. What are vitamins?. organic molecules with a wide variety of functions cofactors for enzymatic reactions essential, supplied in the diet two distinct types: hydrophylic (A, D, E, K) lipophylic (B – complex, C). Why are they good for us?.
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VITAMINS By Zuzana Nováková
What are vitamins? • organic molecules with a wide variety of functions • cofactors for enzymatic reactions • essential, supplied in the diet • two distinct types: hydrophylic (A, D, E, K) • lipophylic (B – complex, C)
Why are they good for us? • Greater need due to worse environment • Improve immunity • Prevent ilnesses • Slower aging
Vitamin A and provitaminA • Retinols • Cancer cure and prevention • Skin, eyes, genital glands • Provitamin changes to A vitamin in liver • Sources: vitamin: liver, yolks, dairy products • provitamin: carrots, parsley pepper, spinach
Vitamin D • Kalciferols • „the sun vitamin“ (UV rays) • regulation of calcium metabolism • sources: yeasts, some fish, yolks, dairy products
Vitamin E • Tocoferols (a-) • Antioxidant (lipid protection) • improves immunity • Cures muscle, heart and skin diseases, burns • Sources: green vegetables, vegetable oil, corn, eggs, bread, dairy products, peas, beans
Vitamin K • fylochinon • Blood clotting • Higher need by newborns, people with liver diseases, or fat malabsorbtion • Sources: green fruits and vegetables, tomatoes, soy, beef liver, yolks, wheat, butter, cheese
Vitamin B1 • Thiamine • Influences sacharide metabolism • Helps against tiredness • Is destroyed by coffee, body can´t store it • Severe deficiency leads to beri-beri • Sources: yeasts, cereals, liver, pork, legumes
Vitamin B2 • Riboflavin • Sacharide and lipids metabolism • Curing of skin diseases • Support of sight function • Light sensitive • Sources: cerals, eggs, vegetables, dairy products, yeast, liver
VitaminB5 • Pantothenate • Part of coenzyme A • Reduces stress, prevents tiredness • Necessary for formation of glycogen, fatty acids, steroid hormones • Sources: liver, heart, yeast
Vitamin B6 • Pyridoxin • Aminoacids and protein metabolism • Cure of anemy • Formation of red blood cells • Sources: meat, fish, liver, vegetables, cerals, yolk, legumes
Vitamin B12 • Cyanocobalamine • Formation of red blood cells • Maintenance of neuro tissue • Cure of neuro diseases, anemy • Sources: dairy products, meat, poultry, sea products
Vitamin C • Ascorbic acid • Hormone, colagen synthesis • Infection resistance, cure of cuts • Hypervitaminosis: addiction, diarrhea • Hypovitaminosis: curvy • Source: fruits, vegetables
Vitamin H • biotine • Part of an enzyme formating glycogene and fatty acids • Necessary for good skin • mitosis • Sources: liver, yeasts, yolk, nuts, soy
Folic acid • Metabolism of aminoacids • Stimulates the formation of red blood cells • transfers one carbon unites during biosynthetic reactions • Sources: dark green vegetables, liver, yolk
Literature: • www.bajk.cz • http://kzw.walmark.cz/aktuality.asp?da_id=20 • www.bun-vyziva.wz.cz • http://chamik.wz.cz/vitaminy.htm