Patients with kidney stones should limit their caffeine intake, or is likely to suffer from kidney stones, the researchers found that when some people have a history of kidney stones intake dose equivalent of two cups of coffee contains caffeine, the content in their urine calcium increased significantly. Calcium is an important component of stones, excessive intake of caffeine, urine calcium content increased, the risk of kidney stones also increased. Gallstone patients should limit caffeine intake to less than two cups a day, drinking coffee, drinking through other way intake of caffeine should be lower than the same dose, two cup refers to how much? Dr. Linda said, should be 16 ounces, or two coffee cylinder, there will be more than this amount, the risk of stones.
The previous studies showed that no stones tend to in vivo caffeine also produce more calcium, but it is also suitable for the people who are prone to stones? In this regard, experts conducted experiments, they first make 39 patients with stones from patients and healthy people have not had the stones fasting for 14 hours, and then let them drink caffeine with water, the researchers in their caffeine intake before and after two hours were testing their urine report according to researchers in the "Department of Urology" published in the journal shows that their urine calcium, sodium, magnesium, citric acid content increased, that mean those who have never had a history of kidney stones in caffeine after secretion of calcium in the body will also increase.