One of the diseases that threaten our eye health and is the most significant cause of irreversible loss of sight after 65 years of age-related macular degeneration. This disease, chronic and progressive, affects a significant number of people in our days, so finding a preventive treatment is essential.
In this sense, there is evidence that consumption of foods rich in carotenoids lutein and zeaxanthin may reduce somewhat the appearance of this disease. These nutrients the body can not produce itself but are incorporated through diet. They are known as macular pigment and its main function is to protect the macula (central retina) and the lens of the oxidative action of light.
The antioxidant capacity of these reduced gradually in the eye damage caused by ultraviolet light and some photochemical reactions. In this regard, research conducted at the University of Sydney and the University of Newcastle demonstrate is have shown that high doses of lutein and zeaxanthin in the daily diet reduced the risk of macular degeneration associated with age. These studies also indicate the protective nature of zinc against this disease.
To include lutein in our diet, we know that it is present in foods such as berries (blueberries, blackberries, strawberries, raspberries), spinach, broccoli, lettuce, spinach and celery. For its part, the zaexantina is found in fruits like peaches and oranges, and vegetables such as corn, watercress and chicory. However, both lutein as zaexantina can ingeririse as nutritional supplements.
Of course, the consumption of these antioxidants should be proportionate and appropriate, for a high consumption of them may cause adverse effects and accelerate age-related macular degeneration. For this reason, its use should be guided by a specialist who can control their effects on the body.