What are antioxidants and how much are they needed?
Antioxidants are produced in some amount by the human body itself. They prevent damage to cell membranes caused by free radicals. Radicals are usually formed as products of incomplete oxidation as a result of thermal, radiation or toxic effects on the body. They attack healthy cells and alter their DNA structure. The altered cells cannot function normally, as a result of which serious illnesses arise. Free radicals contribute to the signs of aging in the body - the appearance of wrinkles, lethargy and dry skin. This negative effect is actively resisted by antioxidants contained in large quantities in vegetables and fruits, as well as in vitamin complexes.
What are antioxidantsThere is conflicting evidence about the fight against cancer cells by antioxidants. For example, some researchers argue that an antioxidant such as vitamin A does not affect the occurrence of lung cancer in smokers. However, other researchers have found a positive effect of vitamins C and A in the prevention of stomach cancer. And recently, scientists have found that lycopene, which belongs to the chemical group of vitamins A, prevents prostate cancer and the development of cancer cells in the lungs and intestines. This substance is present in large quantities in passionfruit, tomatoes, broccoli.
In addition to those antioxidants that the body itself produces, it is necessary to additionally use special preparations, which contain vitamins A, E, C. Vitamin E, which is a very strong antioxidant, was previously considered useful for normalizing the functioning of the heart. But then it turned out that it significantly reduces the effect of drugs that reduce cholesterol levels. Overdose of this vitamin may even cause bleeding. Therefore, it is impossible to take vitamins uncontrollably in any case.
Vitamin intake is undoubtedly important in case of an insufficiently balanced diet. However, before taking them, be sure to consult with your doctor. Inappropriate doses of vitamin C, for example, can lead to worsening of kidney disease. Therefore, the best source of antioxidants is a balanced diet rich in vegetables and fruits. In addition to the already mentioned tomatoes and passionfruit, doctors advise eating more berries - blueberries, blueberries, raspberries, strawberries. Honey has high antioxidant properties. Consuming about 0.5 kg of vegetables and 0.2 kg of fruit daily will fully provide the body with the necessary amount of antioxidants.