Biology,

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VITAMINS –   Important Informations

Appr. Year of discovery    Vitamin / Chemical Name     Food source                   Deficiency Disease

1913                            Vitamin A (Retinol, retinal)      Cod liver oi                       Nightblindness,
                                                                                                                                        Keratomalacia

1910         Vitamin B1 (Thiamine)    Rice bran   Beriberi, Wernicke-Korsakoff syndrome

1920        Vitamin B2 (Riboflavin)           Eggs Ariboflavinosis

1936       Vitamin B3 (Niacin, niacinamide)  Liver Pellagra

1931        Vitamin B5 (Pantothenic acid) Liver Paresthesia

1934        Vitamin B6 (Pyridoxine, pyridoxamine, pyridoxal) Rice bran     Anemia, peripheral neuropathy.

1931        Vitamin B7 (Biotin) Liver Dermatitis, enteritis

1941 Vitamin B9 (Folic acid, folinic acid) Liver Deficiency during pregnancy is associated with birth defects, such as neural tube defects

1926 Vitamin B12 (Cyanocobalamin, hydroxycobalamin, methylcobalamin),Liver Megaloblastic anemia

1920 Vitamin C (Ascorbic acid) Lemons                                                                  Scurvy

1920  Vitamin D (Ergocalciferol, cholecalciferol) Cod liver oil     Rickets and Osteomalacia

1922  Vitamin E (Tocopherols, tocotrienols)       Wheat germ oil,
                                                                                                                                                                                                                                                  Cosmetics and liver      Sterility, Deficiency is very rare; mild hemolytic anemiain newborn infants

1929   Vitamin K (phylloquinone, menaquinones) Alfalfa Hemophilia, Bleeding diathesis

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