Oxalic acid accumulates too much. The accumulation of oxalic acid in the body is one of the factors leading to kidney calculi. Such as spinach, beans, grapes, cocoa, tea, oranges, tomatoes, potatoes, plums, bamboo shoots and other things that people generally like to eat are foods with high oxalic acid content. Doctors found through research that 200 grams of spinach contains 725.6 milligrams of oxalic acid. If a person eats all 200 grams of spinach at one time, 8 hours after eating, the excretion of oxalic acid in urine is 20-25 mg, which is equivalent to the average total amount of oxalic acid excreted by normal people in 24 hours.
Purine metabolism disorder. Animal offal, seafood, peanuts, beans, spinach, etc. , all contain more purine components. Purine must be metabolized after entering the body, and the final product of its metabolism is uric acid. Uric acid can promote oxalate precipitation in urine. If the food rich in purine is eaten too much at one time, the purine metabolism is abnormal, and oxalate will be deposited in the urine, forming urinary calculi.
Excessive fat intake. The meat of various animals, especially fat pork, is a high-fat food. Eating too much body fat will inevitably increase, and fat will reduce the calcium that can be combined in the intestine, thus causing the absorption of oxalate to increase. If there is excretory failure, such as sweating too much, drinking too little and urinating too little, kidney calculi is likely to form in this case. Therefore, doctors often say that in order to prevent lithiasis, drink plenty of water in hot days and drink plenty of water when eating greasy food to promote smooth urination and dilute urine components, thus reducing the risk of getting stones.
Sugar is high. Sugar is an important nutrient of human body, so it should be supplemented regularly and appropriately. However, if you supplement too much at once, especially lactose, it will also create conditions for the formation of stones. Experts found that both normal people and patients with stones, after eating100g sucrose, examined their urine for 2 hours, and found that the concentrations of calcium and oxalic acid in urine increased. If lactose is ingested, it can promote the absorption of calcium, which is more likely to lead to the accumulation of calcium oxalate in the body and form urinary calculi.