Editorialists responding to three articles on vitamin and mineral supplementation being published in Annals of Internal Medicine urge U.S. adults to stop wasting their money on dietary supplements. The authors cite the large body of accumulated evidence showing that most multivitamin supplements are ineffective, and some may cause harm. The message is simple, the authors … Read more
High blood levels of C-reactive protein, a substance linked to inflammation, appear to be associated with an increased risk for age-related macular degeneration, according to a report in the October issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
About a third of American adults take some type of multivitamin on a regular basis. In nearly every case, the goal is better health, even though there is no firm evidence to support this hope.
Selenium, an antioxidant included in multivitamin tablets thought to have a possible protective effect against the development of type 2 diabetes, may actually increase the risk of developing the disease, an analysis by researchers at the University at Buffalo has shown.
A new analysis of data from a large national study found that people who took a 200 microgram selenium supplement each day for almost eight years had an increased risk of developing type 2 diabetes than those who took a placebo or dummy pill.
Researchers exploring the notion that certain nutrients might protect against pancreatic cancer found that lean individuals who got most of these nutrients from food were protected against developing cancer. The study also suggests this protective effect does not hold true if the nutrients come from vitamin supplements.
While regular multivitamin use is not linked with early or localized prostate cancer, taking too many multivitamins may be associated with an increased risk for advanced or fatal prostate cancers, according to a study in the May 16 issue of the Journal of the National Cancer Institute.
Each year an estimated 20 million children are born with low birth weight worldwide, more than 95% of them in developing countries.
Even regular use of prenatal multivitamin supplements is not adequate to prevent vitamin D insufficiency, University of Pittsburgh researchers report in the current issue of the Journal of Nutrition, the publication of the American Society for Nutrition.
Researchers at The Hospital for Sick Children (SickKids) have found that taking prenatal multivitamins fortified with folic acid can reduce the risk of three common childhood cancers: leukemia, brain tumours and neuroblastoma. This research was published online on February 21, 2007, in the journal Clinical Pharmacology & Therapeutics.