Jarrow Formulas Vitamin D3 provides cholecalciferol, the same form of vitamin D produced by the skin through sunlight exposure. Vitamin D3 may improve vitamin D status more effectively than vitamin D2 and is converted by the body into calcitriol as needed to support calcium absorption, bone health, and immune function.

Key Features

• Vitamin D3 (cholecalciferol)

• Better vitamin D status

• Supports calcium absorption

• Supports bone structure

• Supports immune health

Best for
Those seeking to maintain healthy vitamin D levels year-round.