How are you? The formation of stones may be influenced by your diet. A diet high in sodium, fats, meat, and sugar, and low in fiber, vegetable protein, and unrefined carbohydrates increases the risk for kidney stones. products of animal protein and who consume large amounts of meat. Also, high doses of vitamin C can also increase the risk for kidney stones. Oxalate is found in berries, nuts, chocolate, strong tea and vegetables such as green beans, beets, spinach, squash, tomatoes. Take care and best regards.