Q. What meals ought to I keep away from if I’m susceptible to kidney stones?
A. Drink extra fluids, eat much less sodium and eat a weight-reduction plan that features calcium-rich meals. The remaining depends upon the chemical composition of your stones.
Greater than 90 p.c of stones comprise calcium, normally within the type of calcium oxalate, calcium phosphate or hydroxyapatite. Much less usually, stones are fashioned of uric acid or different chemical compounds. Several types of stones may happen in the identical particular person.
Since most stones comprise calcium, docs traditionally suggested sufferers to restrict the quantity of calcium of their diets. It was a logical suggestion, but it surely was incorrect.
Within the early 1990s, a bunch of Harvard docs adopted for 4 years greater than 45,000 males who had by no means had a kidney stone and got here to a shocking conclusion: Diets which are excessive in calcium truly lower the danger of kidney stones.
The group continued to observe these sufferers for 14 years and once more discovered that dietary calcium protected in opposition to stones, although the protecting impact was evident solely in males youthful than 60.three Diets excessive in magnesium, potassium and fluids additionally seemed to be protecting.
In 2005, the group expanded their evaluation to greater than 240,000 sufferers. They discovered that weight problems and weight acquire, significantly in ladies, elevated the danger of stone formation.
This led them to check the DASH weight-reduction plan — a weight-reduction plan excessive in fruits, greens, nuts and legumes, low-fat dairy merchandise, and complete grains; and low in sodium, sweetened drinks, and crimson and processed meats. The DASH weight-reduction plan is endorsed by the American Coronary heart Affiliation and the Nationwide Institutes of Well being. The Harvard group discovered that DASH decreased the danger of kidney stones.
Such dietary suggestions can simply develop into overwhelming. Luckily, the American Urological Affiliation makes it easy:
Drink no less than 2.5 liters — about two-thirds of a gallon — of fluids per day.
Restrict sodium consumption to 2,300 milligrams a day.
Eat 1,000 to 1,200 milligrams of dietary calcium a day.
A standard false impression about fluids deserves particular point out. Water isn’t the one fluid that protects in opposition to kidney stones. Water, espresso, tea, wine, alcoholic drinks and orange juice all appear to be protecting. Soda and different sugary drinks, then again, enhance the danger of stone formation.
Lastly, examine together with your physician, who can supply particular suggestions relying on the chemical composition of your stones.