Fat-soluble vitamins A, D, E and K: Their functions, main sources and recommended doses

Fat-soluble vitamins

Most of the vitamins that a person needs are dissolved in water. But there are four fat-soluble vitamins: they are much better absorbed into the bloodstream, if you eat them with fat: These are vitamins  A,   D , E, and  the K. I will tell you what their health benefits are and what are the main sources. Read more

Rich in vitamins


Then we will see foods rich in vitamins, in each, as well as its most important and how to get better absorption functions.

What are vitamins?

Vitamins are substances that do not have their own energy, are necessary for normal physiological functions and are essential because our body is unable to synthesize them.

We therefore look for foods rich in vitamins. An exception is vitamin D, which can be formed in the skin to sun exposure, and K, B1, B12 and folic acid, which are formed in small amounts in the intestinal flora.

History of Vitamins

At the end of the nineteenth century it was believed that only foods are made up of protein, fat, carbohydrates and calories.

In 1906 Hopkins determined that a number of substances in food in small quantities and are essential for life.

But it was in 1912 the biochemist Casimir Funk commissioned to determine its chemical structure was an amine, and as essential for life coined the term “vit-amine”. Read more