A-Z Nutrient List

Name Chemical Name Deficiency disease Overdose disease
Vitamin A Retinol, retinal, and
four carotenoids beta carotene)		 Night-blindness and
Keratomalacia[20]		 Hypervitaminosis A
Vitamin B1 Thiamine Beriberi, Wernicke-Korsakoff syndrome Drowsiness or muscle relaxation with large doses.[22]
Vitamin B2 Riboflavin Ariboflavinosis
Vitamin B3 Niacin, niacinamide Pellagra Liver damage (doses > 2g/day)[23] and other problems
Vitamin B5 Pantothenic acid Paresthesia Diarrhea; possibly nausea and heartburn.[25]
Vitamin B6 Pyridoxine, pyridoxamine, pyridoxal Anemia[26] peripheral neuropathy. Impairment of proprioception, nerve damage (doses > 100 mg/day)
Vitamin B7 Biotin Dermatitis, enteritis
Vitamin B9 Folic acid, folinic acid Deficiency during pregnancy is associated with birth defects, such as neural tube defects May mask symptoms of vitamin B12 deficiency; other effects.
Vitamin B12 Cyanocobalamin, hydroxycobalamin, methylcobalamin Megaloblastic anemia[27] No known toxicity[27]
Vitamin C Ascorbic acid Scurvy Vitamin C megadosage
Vitamin D Ergocalciferol, cholecalciferol Rickets and Osteomalacia Hypervitaminosis D
Vitamin E Tocopherols, tocotrienols Deficiency is very rare; mild hemolytic anemia in newborn infants.[29] Increased congestive heart failure seen in one large randomized study.[30]
Vitamin K phylloquinone, menaquinones Bleeding diathesis Increases coagulation in patients taking warfarin.[31]