Vitamins and Supplements

What are all the vitamins

A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and must be obtained from the diet. Thus, the term is conditional both on the circumstances and the particular organism.

Human vitamins:

Vitamin A – Retinoids (retinol, retinoids and carotenoids)
Vitamin B1 – Thiamine
Vitamin B2 – Riboflavin
Vitamin B3 – Niacin, niacinamide
Vitamin B5 – Pantothenic acid
Vitamin B6 – Pyridoxine, pyridoxamine, pyridoxal
Vitamin B7 – Biotin
Vitamin B9 – Folic acid, folinic acid
Vitamin B12 – Cyanocobalamin, hydroxycobalamin, methylcobalamin
Vitamin C – Ascorbic acid
Vitamin D – Ergocalciferol, cholecalciferol
Vitamin E – Tocopherols, tocotrienols
Vitamin K – Phylloquinone, menaquinones

Other letters were once used for other essential substances but were later found to not fit into the “vitamin” category for one reason or another, whether is be the fact it could be synthesized easily or it was actually closely related to another type of vitamin, as was seen with many of the B vitamins. Many others were simply not used before.

Named “vitamins” (not officially recognized, but recognised at one point in history):

Vitamin F – Essential fatty acids
Vitamin G – Riboflavin
Vitamin H – Biotin
Vitamin I – A mix of the B vitamins, possible candidates for this substance are inositol, niacin (nicotinic acid), and biotin
Vitamin J – Choline
Vitamin L – sometimes refered to as anthranilic acid
Vitamin M – Folic acid
Vitamin N – Never scientifically used
Vitamin O – Never scientifically used, although it is interesting to note a controversial product was named after this, claiming to give supplementary oxygen (which is just ridiculous)
Vitamin P – A popular alternative term for bioflavonoids
Vitamin Q – Coenzyme Q10
Vitamin R – Methylphenidate
Vitamin S – Never scientifically used
Vitamin T – Never scientifically used
Vitamin U – S-Methylmethionine
Vitamin V – colloquially known as Viagra
Vitamin W – Never scientifically used
Vitamin X – Never scientifically used
Vitamin Y – Never scientifically used
Vitamin Z – Never scientifically used





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