Fiber, vitamin B6, folic acid, glucose and fructose, potassium ... are some of the components of the grapes that make this fruit have a great nutritional value but, in addition, the grapes are rich in substances to which they are attributed a large antioxidant capacity, such as tannins, flavonoids and anthocyanins.
Thanks precisely to the action of these antioxidants, a diet rich in grapes can prevent or delay the onset of a serious pathology that affects the retina, macular degeneration associated with age (AMD). This disease, which usually manifests after 70 years, is caused by the deterioration of blood vessels that are around or inside the taint, an area of the retina whose function is that we can see clearly.
A diet rich in grapes can prevent or delay the onset of a serious pathology that affects the retina, macular degeneration associated with age
Some conditions such as diabetes, atherosclerosis, poorly controlled hypertension or chronic renal failure can damage the retina and cause AMD, a pathology that can lead to blindness.
Now, a study carried out by a group of researchers from the Department of Biology of Fordham University in New York, in the United States, which has been published in Free Radical Biology and Medicine, shows that the components of the grapes protect the retina of the oxidation and improve their function, preventing or, at least, delaying, the development of DMAE.
The scientists enriched with grapes or lutein the feeding of a group of mice that showed damage to the retina, and observed that the grapes had a greater protection capacity on the retina of these animals. According to Silvia Finnemann, the main author of the study, grapes benefit the quality of sight of the elderly, even if they included them in their usual diet years ago, when they were still young.