Daily does of vitamin D hones men's minds: Study

New research involving more than 3,000 European men suggests vitamin D, the "sunshine" vitamin, may boost cognitive function in middle-aged and older brains.

Men with higher levels of vitamin D performed consistently better in a simple pen and paper test that measured attention and how fast the brain processes information.

It's not proof of cause and effect. But the finding adds to growing evidence that vitamin D does more than keep bones healthy. Recent studies indicate the vitamin protects against some cancers, heart attack and stroke, as well as such auto-immune diseases as multiple sclerosis and type 1 diabetes.