What foods contain vitamin A? Why is it important?

Vitamin A is fat soluble.This element promotes cell regeneration, maintaining good vision and the distribution of fat cells. Without it, the proper functioning of the immune system and the synthesis of proteins are impossible.

Vitamin A is found in foods such as:

• fish fat;
• sturgeon caviar;
• butter;
• beef or chicken liver;
• hard cheese;
• cottage cheese;
• chicken and quail eggs (preferably for breakfast);
• cream and sour cream.

Some people are mistaken about whetherwhat products contain vitamin A, and consider that there is a sufficient amount of it in green and orange vegetables (lettuce, sorrel, dried plums, pumpkin, broccoli, carrots, parsley, spinach, melons, tomatoes). But it is not. The above products contain provitamin A - carotene. This substance acts in a similar way, but much weaker.

What causes vitamin A deficiency?

In the first place - to the drying of mucous membranesthe membranes of the gastric tract, eyes and respiratory tract. Because of this, a person may experience discomfort or pain. Long-term lack of vitamin can lead to the development of diseases. So, because of the unsatisfactory condition of the mucous membrane of the urinary tract, stones may appear. Changes in the condition of the respiratory tract mucosa are dangerous in the development of inflammation Therefore, it is important to know what foods contain vitamin A, and regularly consume them.

Также дефицит А витамина может способствовать wrinkles, dandruff and even skin cancer. Lack of hyperesthesia of tooth enamel, night blindness, the appearance of cataracts and other eye diseases also leads to hyperesthesia.

People who rarely use foods in whichVitamin A is contained in sufficient quantities, prone to the appearance of chronic bronchitis and lung cancer. Lack of effect on the reproductive system: in men it can be expressed in the weakening of erection and premature ejaculation, in women - in the form of cervical erosion and breast cancer.

How to determine the lack of vitamin A?

The main symptoms are acne, worseningskin and hair condition, insomnia, dry mouth, sudden weight loss. A person who does not know what foods contain vitamin A and does not take it, can often get sick, experience weakness and increased fatigue. The skin on the soles and palms can become rough and scaly. Perhaps a feeling of dry mouth, blurred twilight vision and the appearance of a feeling of sand in the eyes.

What threatens to excess vitamin?

Some people who know what products.contains vitamin A, consume it excessively. What does it threaten with? Abdominal pain, disorders of the gastrointestinal tract (constipation, diarrhea, bloating, nausea, etc.) may occur. An enlarged spleen and / or liver may be present.

Some experience joint pain and suffer from hair loss. Often there are cracks in the corners of the lips. In women, menstruation may be delayed.

All vitamins and trace elements are important for health. Proper nutrition allows you to get them with food. But it is worthwhile to approach the preparation of the diet and avoid hypervitaminosis.