Taking extra calcium may not help aging bones after all. An analysis of more than 100 previous investigations suggests that guidelines advising seniors to consume 1,000 to 1,200 mg of calcium a day are misplaced. Researcher Dr. Mark Bolland adds, “We’ve gathered all the clinical studies of calcium supplements and dietary calcium intake for both bone density and fractures… Taken together, we think this is the strongest possible evidence that taking calcium supplements will not be beneficial unless there are clear medical reasons that a calcium supplement is needed.”
British Medical Journal, September 2015