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Your kidneys filter almost 150 quarts of blood daily and remove wastes and excess fluid from the body. This filtering function of the kidneys helps in protecting the body from toxic substances and maintains the normal electrolyte balance. Moreover, the kidneys produce hormones essential for maintaining healthy bones, producing red blood cells and maintaining the normal blood pressure level.
To improve the function of the kidneys, you must eat foods that provide nutrients that nourish the kidneys and protect them from harmful substances.
Apart from warding off recurrent infections of the urinary tract that over time may impair the functions of the kidneys, cranberries also help in reducing the risk of kidney stones. By reducing urinary uric acid level, they prevent formation of urate stones in the kidneys.
Carrot contains pectin, a type of soluble fiber. Pectin helps in increasing urine output. It can also reduce the high creatinine level, which is a marker of poor kidney function. In addition, carrot is a wonderful source of beta-carotene,which is converted into vitamin A in the human body. Vitamin A assists in the filtering function of the kidneys and helps in repairing the damaged kidney tissues.
Coriander leaves and the seeds, besides enhancing the flavor of your foods, are also good for the health of the kidneys. Coriander helps in eliminating lead, mercury and other heavy metals from the body that damage the kidney tissues. Moreover, the antioxidant effect of coriander protects the kidneys from oxidative damage and reduces risk of kidney dysfunction in diabetics.
Apple is another excellent source of the soluble fiber pectin, which apart from improving the function of the kidneys can help in repairing the damaged kidney tissues.
Onion is a natural diuretic. It helps in increasing urine output. By improving kidney function, onion helps in decreasing the creatinine level. In addition, onion contains quercetin, a powerful antioxidant compound that neutralizes free radicals that may damage the kidneys.
Turmeric, a popular coloring agent used in Indian cuisines, is a source of a powerful antioxidant compound called curcumin. As oxidative stress is a major cause of kidney dysfunction, curcumin by reducing oxidative stress, helps the kidneys in maintaining their normal functions. Turmeric is especially beneficial for diabetics who have a higher risk of developing kidney problems.
The low oxalate content of green tea makes it the preferred beverage for people who have a higher risk of oxalate kidney stones. Moreover, green tea helps in breaking down the calcium oxalate stones. Studies suggest that drinking green tea can dramatically reduce risk of developing kidney stones. In addition, antioxidants in green tea reduce oxidative damage to the kidney tissues.
Omega-3 fatty acids in fish oil can prevent kidney dysfunction. Studies have shown that high levels of the polyunsaturated fats help in reducing the creatinine level. Including foods rich in omega-3 fats such as oily fish in the diet can arrest progression of chronic kidney disease.
Grapes help in increasing urine output. By stimulating detoxification, they help in eliminating toxic wastes from the kidneys. Studies have shown that flavonoids present in grape skin can prevent kidney damage caused by eating a high fat diet or obesity induced leaky kidney. In addition, the antioxidant effect of resveratrol found in red grapes protects the kidneys from oxidative stress.
Lemon juice helps in increasing the citrate level in the urine that reduces the risk of calcium stone formation. Lemon also contains pectin, which is good for the health of the kidneys. Moreover, lemon provides antioxidants that protect the kidney tissues from the free radicals.
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