Vitamin D, provided by Douglas Laboratories®, supplies 1000 IU of Vitamin D-3 per tablet.Vitamin D, also known as the “sunshine vitamin” is an essential vitamin that plays many important roles in the proper functioning of the body. Though classified as a vitamin, vitamin D is actually a key regulatory hormone for calcium and bone metabolism. Adequate vitamin D status is essential for ensuring normal calcium absorption and maintenance of healthy plasma calcium levels. Besides bone support, vitamin D has many other roles in the body, including modulation of cell growth, neuromuscular and immune function.Indications: Vitamin D may be a useful dietary supplement for those who wish to increase their daily D intake.This product contains NO yeast, wheat, gluten, soy, milk/dairy, corn, sodium, sugar, starch, artificial coloring, artificial preservatives, artificial flavoring, or genetically modified organisms (GMOs).Suggested Usage: As a dietary supplement, adults take 1 tablet daily or as directed by your healthcare professional.