Vitamins

Essential vitamins including D3, B12, K2, and multivitamins. Evidence-based dosing and when supplementation makes sense.

📋Guide·5 min read

Vitamin D3 and K2: The Synergy, the Science, and the Dosing Reality

Evidence review of vitamin D3 and K2 supplementation covering deficiency prevalence, bone and immune outcomes, the D3-K2 synergy mechanism, and evidence-based dosing strategies.

Ryan Holt

Mar 2026