Various types of crystals are found in the kidney stones. These crystals are calcium oxalate, calcium phosphate, a mixture of calcium oxalate and calcium phosphate and magnesium ammonium phosphate. Therefore, we can categorize these kidney stones as kidney stones calcium oxalate also. In some cases, we can find that the scarcity of the Vitamin B6 account for higher formation and exertion of kidney stones and calcium oxalate. Also dehydration which is due to lack of water in the body, large amount of intake of Vitamin C, supplement of foods containing calcium and antacids having calcium are the main causes of the formation of the kidney stone calcium oxalate. When there is too much exertion of uric acid that is also called as hyperuricosuria by any person cause formation of calcium stones in the urinary system of such person. If the quantity of urine is less than pH 5.5, that tend to formation of uric acid crystals and then calcium crystals start layering around these crystals to shape a calcium oxalate stone. In the human body when pH is less than 6.0, then that cause the formation of acid in the urine by the crystal like Calcium oxalate of kidney stone. In the formation of calcium stone, Citrate is a large element. It shapes a soluble salt with calcium and slows down the shaping of crystals like calcium oxalate and calcium phosphate. Oxalate forms an insoluble complex with calcium to develop calcium oxalate stone. High levels of oxalate in the urine, or hyperoxaluria, is even more important to stone formation than excess amounts calcium that can be termed as hypercalciuria. Calcium oxalate stones are generally caused by excess consumption of food stuff that contain high amounts of calcium. In addition, excessive intake of Vitamin C that is metabolized to oxalate may lead to hyperoxaluria and an increase in stone formation. A condition known as enteric hyperoxaluria that is often observed in bowel resections, inflammatory bowel diseases and small bowel bypass procedures. With these conditions, there is an increase in bile salt and fatty acids that combine with calcium leading to increased oxalate available for absorption. With increased intestinal absorption of oxalate, there is an increase in urinary oxalate leading to formation of calcium oxalate stones. These patients have low urinary magnesium and citrate due to chronic metabolic acidosis caused by chronic diarrhea. These factors are mainly responsible for calcium oxalate kidney stones. The kidney stone like calcium oxalate cause the diseases of the bowel, like Crohns disease can cause more absorbtion of oxalate from the bowel and make calcium oxalate stones more likely. A rare inherited tendency to produce more oxalate (hyperoxaluria), can result in kidney stones and kidney disease in childhood and early adulthood. If you are suffering from kidney stones caused by calcium oxalate, then limiting oxalate content in foods will help you reduce the chances of reoccurence of oxalate stones. You should stay away from excess amounts of draft beer, sweet potatoes, tofu, oranges, leafy vegetables, grapes, chocolates, berries, beets, beans, and rhubarb. You will also have to follow a strict diet regime that has been designed by your physician or dietician in order to avoid calcium oxalate kidney stones.