Food intake in the body contains many important substances, such as proteins, fats, carbohydrates, water and mineral substances. But all of this is not enough. To keep us alive, we need more vitamins.
Vitamins are produced by plants or animals. They must be introduced into the body in certain quantities to normal life processes can take place. When our body does not have enough vitamins, we get sick or don’t feel good and healthy.
Once upon a time, before man had knowledge about vitamins, it was noted that people get sick when they don’t have enough some kinds of food. For example, sailors on long voyages, who have been deprived of fresh vegetables, have suffered from the disease called scurvy.
When humans, more than a hundred years ago, have discovered vitamins, they did not know their chemical composition, and called them simply Vitamin A, B, C, D, etc.
Vitamin A is found in the fatty tissue of animals and is derived from plants that the animals eat. This vitamin is important for keeping your sight. It is found in milk, egg yolk, liver, fish oil, carrots , etc.
Vitamin B is actually a group consisting of at least six different vitamins. The best known B vitamin, is essential for normal functioning of the nervous system. It is located in milk , fresh fruit and cereals.
Vitamin C is the most famous of all vitamins.
Because of the lack of this vitamin small blood vessels become sprayed, and create bruises, especially around the eyes and gums bleed easily, in addition, resistance of the entire body is reduced, especially to some diseases. Vitamin C is found in fresh fruits and vegetables.
Vitamin D is important for the proper development of teeth, bones and whole skeleton. Because of its lack, humans get disease called rickets. It is found in large quantities in fish oils, liver and egg yolk. The sun’s rays enable the creation of this vitamin in our skin.