Caffeine is a risk factor for osteoporosis
The established risk factors for osteoporosis are insufficient dietary calcium and vitamin D, high protein diets, smoking, the onset of menopause, low estrogen levels, low body weight and a lack of physical activity. Several well-controlled studies have concluded that consuming moderate amounts of caffeine does not increase the risk of developing osteoporosis. Nevertheless, caffeine does cause a small amount of calcium to be lost in the urine about the amount in one to two tablespoons of milk per cup of tea or coffee. Moderation is the only recommendation.