What You Get

400mg Vitamin D3 (Cholecalciferol) provides 16,000.0mg Vitamin D3 Activity

Conversion: mcg × 40 = IU

1 mcg = 40 IU for Vitamin D3

Tier 2 - Moderate Bioavailability 1 conversion step

Moderate bioavailability form. Reliable form that works well but requires 1-2 step conversions by the body. Good balance of cost and effectiveness.

Moderate bioavailability form. Reliable form that works well but requires 1-2 step conversions by the body. Good balance of cost and effectiveness.

Active Ingredient Conversions

This form provides the following active ingredients:

Vitamin D3 Activity

Conversion: mcg × 40 = IU

1 mcg = 40 IU for Vitamin D3