Scientists have found evidence of kidney stones, one of the most common and painful urinary tract disorders, in a 7,000-year-old Egyptian mummy, according to the National Kidney and Urologic Diseases Information Clearinghouse. And since their discovery, they have mystified health care professionals. Ongoing research, however, has revealed factors that contribute to the pebble-like deposits, including dietary influences. Emphasizing certain foods and limiting others may help manage cystine stones, which derive from excessive levels of the amino acid cystine.
Fluids
Staying well hydrated helps keep your urine diluted and allows your body to rid itself of materials that may form kidney stones. If you are prone to cystine stones, you may require over a gallon of water every 24 hours, according to the NKUDIC. If you exercise intensely or spend time in hot weather, your fluid needs are increased. Although more research is needed, citrus beverages, such as orange juice and lemonade, may guard against stones because they contain citrate -- a substance that prevents crystals in your urinary tract from evolving into stones. Avoid grapefruit juice, however, which may contribute to stone formation.
Fruits and Vegetables
In addition to providing fluids, fresh, colorful fruits and vegetables are prime sources of antioxidants, such as vitamin C and betacarotene, which support your body's ability to resist and heal from illnesses. Antioxidant-rich foods may also help reduce kidney stone symptoms, according to the University of Maryland Medical Center. Antioxidant-rich fruits and vegetables include berries, citrus fruits, cantaloupe, papaya, squash, carrots, cabbage and bell peppers.
Whole Grains
Because whole grains contain all nutritious parts of the grain, they provide more vitamins, minerals, antioxidants and fiber than refined grains, such as instant rice and white flour. Unprocessed grains also provide low-sodium alternatives to processed foods, such as pretzels, crackers and chips. While fiber-rich foods may help manage kidney stone symptoms, according to the UMMC, a salt-rich diet may exacerbate them. Salt increases the content of minerals in your urine that may form stones. Valuable whole grain options include oats, barley, brown rice, wild rice and unsalted, air-popped popcorn.
Plant-Derived Protein
Protein reaped from meat, fish, eggs and seafood reduces the amount of citrate in your urine, according to the NKUDIC, which may prevent kidney stone formation. Nondairy animal protein also increases your risk for other types of kidney stones, including calcium and uric acid stones. To avoid these effects, choose plant-derived protein sources, such as beans, lentils, split-peas, tofu and soy milk, most often. To avoid high-salt intake, season legumes and other dishes with low-sodium salt blends or natural herbs and spices.
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