In fact, the occurrence of osteoporosis may not be the fault of coffee, can not easily say that drinking coffee is easy to get osteoporosis. Coffee contains high amounts of caffeine and other active ingredients that can have an effect on bone metabolism, and they affect bone metabolism through different pathways; some other beverages in daily life such as tea, cola, food or medicine will also contain small amounts of caffeine. It is a weak diuretic that increases the excretion of sodium and water in the kidneys, and therefore has a slight diuretic effect. A research report pointed out that caffeine will increase the excretion of calcium in the urine and promote the secretion of calcium in the small intestine, and the effect is proportional to the amount of caffeine intake, so long-term high-dose coffee consumption (caffeine intake > 300mg per day, about 3-4 cups of coffee per day), will increase the risk of osteoporosis. Middle-aged and older women who drink more than 4 cups of coffee per day may affect bone mineral density. Therefore, for older women, in order to avoid osteoporosis, they should try to avoid excessive intake of caffeine, and if they want to drink coffee, it is best not to drink more than two cups a day, and pay attention to more calcium supplements. Stay away from osteoporosis, do you wish you say goodbye to coffee? As a food element, the appropriate intake of a small amount of coffee or tea, not only will not greatly increase the loss of calcium, but also can have refreshing, promote metabolism and other effects. In the case of small amounts of coffee consumption, it does not cause a significant increase in urinary calcium loss. On average, the caffeine in each cup of coffee will only increase calcium loss by 2 to 3 mg. If you drink coffee with plain milk, you can compensate for the calcium loss caused by caffeine and oxalic acid with the calcium you get from the milk.