Truth: Study results are mixed when it comes to the skeleton-strengthening benefits of calcium. A BMJ study published in 2015 found that middle-aged adults who took calcium supplements or who got high levels of calcium from their diet were as likely to experience fractures as people who consumed less calcium. 'Dietary calcium intake is not associated with risk of fracture, and there is no clinical trial evidence that increasing calcium intake from dietary sources prevents fractures,' the study authors concluded.