Fermented Vitamin D3 from New Chapter is a new approach to wellness support. Each serving delivers 50 mcg (2,000 IU) vitamin D3 plus organic turmeric and organic reishi mushroom for an added whole-body health boost. Why fermented vitamins? The fermentation process is thought to “unlock” the health-supporting potential of many common foods by breaking down nutrients within them, resulting in a product that is easier for the body to absorb.