Kidney stones are actually a type of crystal. Kidney stones can occur for a variety of reasons. Dehydration , excessive drinking , excess weight , hereditary etc. can cause kidney stones. However, some lifestyle changes can help prevent kidney stones. Kidneys can function better if certain foods are avoided or eaten less. With expert advice, lifestyle website Boldsky lists certain foods that reduce the risk of kidney stones if eaten or avoided. 1. Red meat Beef contains a high amount of protein. The uric acid in it increases the risk of kidney stones. Therefore, experts recommend eating less of this food. 2. Carbonated Drinks Regular consumption of carbonated drinks increases the risk of kidney stones. Such as: soda , energy drinks etc. Playing these can lead to long term kidney disease. 3. Refined Carbohydrates Refined carbohydrates such as white rice , sugar , white flour produce high amounts of insulin. These refined carbohydrates can cause urinary tract infections. This in turn increases the risk of kidney stones. 4. Artificial sugar Regular consumption of artificial sugar can impair kidney function. Research has shown that people who regularly consume artificial sugary drinks have an increased risk of kidney disease. In addition, high caffeine intake also increases the risk of kidney stones. 5. Alcohol Excessive drinking increases the risk of kidney disease. It disrupts the normal functioning of the kidneys and increases the risk of kidney stones. . Salt Salt contains sodium. It also increases the risk of high blood pressure , heart disease and kidney disease. Therefore, experts recommend taking less salt in food.