Daily Dose of Vitamins (I)
Vitamins are a heterogeneous group of substances involved in the regulation of different metabolic reactions, are essential compounds for our body and must be provided daily in the diet because our bodies can not synthesize (or does so in insufficient quantities).
Its primary function is “participate” in the control of lipid metabolism, protein, carbohydrate and mineral. That is, the vitamins do not provide energy directly, what they do is to help convert food into energy diet, which is why we usually use them when we feel fatigued, tired and with little strength.
Classification of vitamins depends on its solubility
Water-soluble vitamins: group B and C.
To be soluble in water, can be passed to the wash water or cooking food, so we do not provide the same amount contained initially.Its features are:
Absorption by passive diffusion or active transport.
Little or no storage: not stored in the body. This causes need to be made regularly and can only be dispensed with them for a few days.
Urinary excretion level: Excess water-soluble vitamins may be excreted in the urine, so their high intake has no toxic effect, unless there is a problem in the kidneys.
Fat-soluble vitamins A, D, E and K.
In this classification fall that dissolve in fats and oils.
Metabolic functions are:
Mediated bile salt absorption.
Possible storage in the liver and fatty deposits.
Fecal excretion level.
Because they can be stored in body fat, it is not necessary to take daily, making it possible, after a sufficient intake, an era survive without their input. On the contrary, if taken in excess can be toxic.
Source: http://www.enbuenasmanos.com/articulos/muestra.asp?art=1712
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