According to a new research published in the JAMA Ophthalmol journal, leafy greens reduce the risk of glaucoma. These greens include kale, lettuce and spinach and the chances of glaucoma decrease with 30%.
A diet that is rich in vegetables that have high levels of nitrate can better your blood circulation, and thus POAG( primary open-angle glaucoma) can be prevented. Reports have shown that nearly 1% of the Americans suffer from this form of glaucoma, and that means that this is the most spread form of glaucoma in the United States. POAG usually occurs to the people that are older than 50 years old. The disease usually goes undetected, as there are no symptoms associated with it. Normally, the cornea adapts to the pressure that rises in the eye, without swelling. When it does swell though, symptoms start to occur but that happens very rarely. Since the disease is painless, the people who suffer from it usually discover that they are losing their sight only in the late stages, when the damage done to the vision is irreversible.
Leafy greens like spinach, lettuce and kale could lower the risk of glaucoma by up to 30%, research has found. The researchers from the Harvard Medical School collected data from approximately 104,000 people. After the information was analyzed, the researchers discovered that the people who had diets rich in nitrate had lower levels of that type of glaucoma than the rest of the people.
80% of the nitrate comes from leafy green vegetables. The information of the study was taken from a 25 year period of time. When the follow up was done, the examinations of the sight were done again and they were asked about their diets as well in new questionnaires. Out of the near 104,000 participants, 1,483 were registered of suffering from POAG in the follow up. After that, they were separated in five different groups, depending on their diet’s nitrate levels. The people who ate more leafy green vegetables had from 20% to 30% lower risks of POAG.
Other studies have shown that the nitrate can be used by the people who don’t have a good blood circulation. Then the Harvard researchers looked if the diet that was rich in nitrate was influencing the glaucoma as well and they discovered that they were right, that the leafy greens do reduce the risk of glaucoma.
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