What should your choice of food supplements rely on?

Are manufacturers of nutritional supplements making a whole-hearted effort of documenting their products? Or do they often get away with hot air? If you browse through the web sites of Danish supplement producers it seems rather obvious that only very few are actually able to put their money where their mouth is.

In a study, researchers measured intake, absorption and excretion of magnesium in 4 - 8 year old children. Surprisingly, the researchers found that intake and absorption of magnesium, but not of calcium were significantly associated with bone density and bone mineral content.

Dr. Yamagishi and colleagues from Japan's University of Tsukuba in a new study has used data from 6,000 middle-aged Japanese, and for the first time have been able to show that low levels of coenzyme Q10 in the blood are strongly associated to an increased risk of disabling dementia.

Yet another scientific study confirms that CLA is effective. A new Spanish double-blind randomized study has shown that 3 g of CLA daily given to a group of healthy, overweight persons, reduced their amount of fat and their weight over a period of 24 weeks.

Women who get sufficient vitamin D is approximately one-third less likely to develop fibroids in the wall of the uterus, according to a U.S. study published in the journal Epidemiology. This study is the first to relate uterine fibroids to the level of vitamin D.

A study has shown that patients with low vitamin D levels in the blood are at increased risk of serious complications or death after surgery, cardiac surgery excluded. For each 5 ng/ml  increase of vitamin D in the blood the overall risk of death and complications after surgery decreased seven percent.

Combined supplementation with chondroitin sulphate and glucosamine could help to reduce knee joint pain, stiffness, and functional disability of people with osteoarthritis, according to new research published in the top rheumatology journal: Annals of the Rheumatic Diseases.