October 25th, 2015
Podcast 187: Colorectal adenomas not prevented by calcium and/or vitamin D
We interview John Baron about his recent New England Journal of Medicine study testing the ability of calcium or vitamin D (or both) to prevent recurrences of colorectal adenomas in a population who had lesions found during colonoscopy. On follow-up after three to five years, the effects of daily calcium and/or vitamin D supplements were the […]
October 6th, 2015
Podcast 186: Stop supplementing calcium!
Two analyses in the BMJ show little or no benefit from loading up older patients with calcium — indeed, the bad side effects of doing so (kidney stones and cardiovascular problems, to name two) outweigh the benefits. Our conversation with Dr. Mark Bolland should offer reassurance to clinicians and their patients that a normal diet will […]
June 3rd, 2011
Podcast 123: Calcium’s benefits seem to peak out at about 800 mg daily
On the basis of evidence from a Swedish cohort, calcium intakes much above that country’s recommended 800 mg daily don’t have added protective value against fracture and osteoporosis. The authors of this BMJ paper suggest we’d be better off making sure those at the low end of the calcium-intake spectrum get their 800 mg, rather than […]