Diet to Prevent Kidney Stones

Kidney stones develop when the concentration of stone forming salts such as calcium oxalate, calcium phosphate or uric acid in the urine is high enough to allow crystals to form or per-formed crystals to grow.

There are several factors and conditions responsible for their development-hot climate, decreased fluid intake, too much salt in one’s diet, low intake of calcium, urinary tract infections, diet high in uric acid, family history and metabolic disorders such as hyperparathyroidism.

Diet for Calcium Oxalate Stones:

• Avoid foods high in oxalates such as nuts, soybeans, spinach, beans, beets, chocolates and sweet potatoes to reduce the oxalate in urine.

• Include 800 mg of calcium everyday to maintain bone density. A low calcium diet may increase the oxalate absorbed during digestion. Milk, yoghurt, cheese are some of the best dietary sources.

• Limit salt consumption to 1 tsp/day (2000mg). Too much of slat in your diet can excrete more calcium in your diet can excrete more calcium in your urine.

Avoid canned or commercially processed foods and even sports drinks. Read the food package labels well and know their sodium content. Use spices, herbs to add flavor to your food.

• Limit protein intake to 0.7-0.8b/kg IBW. Foods containing high protein such as poultry, eggs, organ meats and fish increase more calcium and oxalate in your urine. Supplements containing vitamin C should be avoided.

Diet for Citrate Stones:

• Low urinary citrate excretion is a known risk factor for the development of kidney stones.

• Include plenty of vegetables and citrus rich fluids such as lemonade and orange juice.

• Avoid animal protein foods such as red meat, organ meats, etc.

• Avoid processed and salty foods.

Diet for Kidney Stones

The Magic Mantra:

• A high fluid intake is one of the most important cornerstones of kidney stone prevention.

• Aim to drink at least 2-2.5 liters of water per day.

• Avoid excess consumption of fluids containing oxalates and caffeine such as tea, black tea and coffee.

• Favor lemon juice over other citrus juices.

• Avoid alcohol and other carbonated beverages.

Also Read: Living with One Kidney (Kidney Transplantation)

Diet for Uric Acid Stones:

• Aim for a low purine diet.

• Avoid foods rich in purines such as red meats, especially organ meats like liver, kidney, fish shellfish, yeast, spinach, peas, mushrooms and legumes.

• If overweight then weight loss should be done gradually as quick weight loss may increase uric acid levels.

• Low fat milk, low fat yoghurt, cherries and vegetable protein help to reduce serum urate levels.

Diet for Cystine Stones:

• Limit your protein intake.

• Avoid foods containing Methionine such as eggs, fish, sesame seeds and spinach.

• Reduce the intake of table salt and processed foods.

Diet for Struvite Stones:

• Mainly formed due to urinary tract bacterial infections.

• Cranberry juice and cranberry based foods are effective in preventing urinary tract infections.

SOURCE: B-Positive Health Magazine

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