Vitamins: Chemical Name, Sources, Deficieny and Discovery

Approximate Year of discovery Vitamin / Chemical Name Food source Deficiency Disease
1913
Vitamin A (Retinol, retinal) Cod liver oil Night blindness, 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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