The human body requires six principle vitamin groups to function properly. Those are K, E, D, C, B, and A. Of all these, the vitamins K, E, D and A happen to be fat-soluble. Which means they are stored in the fat reserves of the body to an extent.
Vitamins C and B happen to be water-soluble vitamins. Which means that they are expelled from the body through our urine if we have too much of it. Hence, that is what makes them more susceptible to be in deficiency.
The group of vitamin B belongs to a class of elements which control quite a few important bodily functions. Hence, it is significant in maintaining a smooth and orderly pace of internal functions.
Vitamin B12, which is also known as cobalamin is a vital cofactor in the production of DNA. It also metabolizes fatty acids and amino acids in the body.