More Vitamin D Needed in Winter...
New research in the Journal of Nutrition suggests quadrupling Vitamin D levels in the winter. For the study, scientists recruited 112 women, average age of 22.2, giving some a placebo between March 2005 and September 2005 and then given a placebo or a vitamin D supplement until February 2006. At the end of the experiment, women on the vitamin D supplement had higher serum levels 25-hydroxyvitamin D, 35.3 nanomoles per liter compared to only 10.9 nanomoles per liter. The body manufactures Vitamin D from ultra-violet light derived from the sun; NutraIngredients reports.
Dr. Fuhrman is a huge proponent of vitamin D, especially for bone health, more so than calcium. Vitamin D also helps reduce risk of hip fractures, multiple sclerosis and boosts physical strength in young girls. And it was not too long ago the American Academy of Pediatrics suggested doubling kids’ intake of vitamin D, citing evidence vitamin D helps prevent serious illness, like cancer and diabetes.
Vitamin D deficiency has drawn increased attention over the past few months. Previous studies have associated insufficient Vitamin D with stunted growth, hypertension and rickets. In the winter, when the days are shorter and sunlight is in short supply, therapeutic lights can keep the sunshine coming.
Image credit: Grant MacDonald