Goal

Best Supplements for Bone health

3 evidence-based options for bone health, summarized from the research: what they do, how to dose them, and how they work together.

The primary structural mineral of bones and teeth.

The sunshine vitamin behind bone, immune, and mood health.

The traffic controller that routes calcium to your bones.

Combinations to know

How these supplements pair with each other and beyond.

Vitamin D3 is required to absorb dietary and supplemental calcium.

K2 directs the calcium that D3 helps absorb into bone rather than soft tissue and arteries.

K2 activates the proteins that bind dietary calcium into the bone matrix.

Magnesium is required to convert vitamin D into its active form, so low magnesium blunts D3's benefits.

Calcium taken at the same time inhibits iron absorption; separate them by at least two hours.

Both are fat-soluble and support mood and immunity; taking D3 with fish oil aids absorption.