VITAMIN CLASSIFICATION
There are currently thirteen different families of vitamins.
Among these, there is the complex of vitamins B, also called vitamins of group B or vitamin B complex.
There are 8 different B vitamins, each with a different number: B1, B2, B3, B5, B6, B8, B9, and B12.
Vitamins are sometimes classified based on their water-soluble or fat-soluble properties.
While a fat-soluble vitamin can dissolve in fat and then be stored in the body, a water-soluble vitamin generally circulates in the body for a limited time before being used or disposed of.
They are therefore distinguished:
1) Fat-soluble vitamins, in particular, those bearing the letters A, D, E, and K;
They must be introduced with the diet but, unlike the water-soluble ones, they can be stored in the liver and adipose tissue, from which they are put back into circulation in case of need if the need increases or decreases the intake with food.
Since the excesses are not eliminated as quickly as it happens for water-soluble vitamins, in case of excessive intake it's possible to incur intoxication, even if with normal nutrition it's difficult for this to happen.
2) Water-soluble vitamins, including the famous vitamin C and vitamin B complex.
They must be introduced daily with food, as they cannot be stored by the body; for this reason, it's difficult to overdose, since the surplus of water-soluble vitamins is eliminated, largely through the urine.
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