Our Vitamin D-3  provide 10 mcg (400 IU) of cholecalciferol per tablet. Cholecalciferol, otherwise known as D3, is the vitamin D that is formed when the sun touches human skin.

• Supports Strong Bones†
• Immune System Support†

For additional formula information, view the Supplement Facts panel.

All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose cGMP (current Good Manufacturing Practice) are independently verified by qualified certification organizations.

Free of artificial colors, flavors and preservatives, Windmill is a trusted name that has been providing America with quality supplements for over 45 years.

Gluten-Free