Why are vitamin D3 and K2 often combined?

Vitamin D3 and vitamin K2 are commonly included together in combination dietary supplements. Formulations vary by brand and may contain different amounts or forms of each ingredient; review the Supplement Facts panel.

What's the difference between MK-4 and MK-7 forms of K2?

MK-4 and MK-7 are two forms of vitamin K2 used in dietary supplements. Depending on the product, a formula may contain one form or the other; review the Supplement Facts panel.

What should I know before choosing a vitamin D3 + K2 supplement?

Review the product label for important warnings, precautions and directions for use. If you take prescription medications or have questions, consult your healthcare provider before use.

What formats do D3 + K2 supplements come in?

Vitamin D3 and vitamin K2 are available as combination supplements and as separate single-ingredient products. Formats and formulations vary by brand.

What forms are D3 + K2 supplements available in?

D3 + K2 supplements come as softgels, capsules, liquid drops, and vegan-friendly formulas using plant-sourced vitamin D3 (lichen-derived) and MK-7.