RHR: Vitamin D: Why a Personalized Approach Is Best

In this episode of Revolution Health Radio, Chris Kresser explains why vitamin D supplementation should never be one-size-fits-all. Drawing on new research—including a groundbreaking study on magnesium’s regulatory role—Chris explores how genetics, ethnicity, body weight, age, health status, sun exposure, and nutrient cofactors all shape an individual’s vitamin D needs. He outlines optimal testing strategies, safe and effective target ranges, and the critical roles of magnesium, vitamin K2, and vitamin A in vitamin D metabolism. The episode reframes vitamin D optimization as a personalized, systems-based approach that prioritizes balance, testing, and real-world physiology over generic dosing guidelines. The post RHR: Vitamin D: Why a Personalized Approach Is Best appeared first on Chris Kresser .

You can listen to RHR: Vitamin D: Why a Personalized Approach Is Best online on Radio and Podcast. Open the player on this page to stream the available audio.

RHR: Vitamin D: Why a Personalized Approach Is Best is an episode from Revolution Health Radio by Chris Kresser.

This episode is 28:30 long.

This episode was published on Feb 10, 2026.

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