<s>[INST] Is there any harmful effect if one takes more than 1200 milligrams of calcium? If so, what kind of harmful effect could excess calcium cause? [/INST] Taking more calcium than what you need is not beneficial and may even be harmful. When you take too much calcium from supplements, the excess calcium is excreted through your kidneys into your urine. In some people, this increases the risk of kidney stones. Some studies have also suggested a link between calcium supplements and heart disease, however these finding are not conclusive. To play it safe, BHOF recommends trying to meet your daily calcium needs by eating calcium-rich foods. Only supplement the estimated amount you do not get through your diet. Source: Bone Health and Osteoporosis Foundation. Link: https://www.bonehealthandosteoporosis.org/patients/patient-support/faq/. Field: Rheumatology. Disease: Ostoeporosis </s>