We are supposed to make mistakes so that we learn. Sometimes medical authorities, especially those who issue official guidelines, are remarkably intellectually dull. A current example is the US Preventive Services Task Force recommendation not to take vitamin D and calcium to prevent bone fractures. If they were correct, if this were based upon […]
Be Careful What You Swallow
A study was just published with exclamatory headlines warning about vitamin D and calcium raising the risk of kidney stones. They studied the blood and urine of 163 healthy, postmenopausal women for a year. Investigators gave the women from 0-4,800 iu of vitamin D and raised their calcium to 1,200 – 1,400 mg/day. 1/3 of […]
What About Calcium Supplementation?
The most frequent supplement question I’ve been hearing lately is about taking calcium. These questions have been inspired by a recent study of calcium supplementation, which received a great deal of attention. The authors of this study combined data from other studies and determined that calcium supplementation increased the risk of heart attack. Most of […]