[Vitamin]: noun from Latin vita (life) and amino.
Organic substance essential to the growth and maintenance of the vital equilibrium of the body, which cannot produce it itself.
They must be drawn from external sources: environment, food, supplementation, etc.
These are the vitamins C and the vitamins of the B group, with the exception of vitamin B12. These are the water soluble vitamins, meaning that they are soluble in water. Our body needs them on a daily basis, it will therefore extract them from our food and food supplements. Since it is unable to store them, the excess will be eliminated through all the water that is excreted from our bodies (sweat, urine, breathing, etc.). It is therefore essential to have a daily intake adapted to your needs.
In contrast to water soluble vitamins, they can be stored by the body in fat and some organs such as the liver. These are vitamins A, D, E, K and vitamin B12. Our bodies will draw from their reserves the quantity of vitamin needed to meet our daily needs. We all have our own storage capacity in our bodies, it is important to refill it without exceeding it because the surplus will be stored in other organs which is not their function.