Magnesium is a required cofactor for the enzymes that convert vitamin D into its active hormonal form. Without it, your D3 supplement stays inactive in the bloodstream.
This pair requires two separate supplements. Both are needed for the synergy to work.
Vitamin D3 (cholecalciferol) is the form your skin produces naturally. Fat-soluble, so it must be taken with a meal containing fat for proper absorption.
View on Amazon →Magnesium glycinate is the best-tolerated form with minimal GI side effects. Activates the enzymes that convert D3 into its usable hormonal form. Also supports sleep when taken in the evening.
View on Amazon →We're evaluating premium options with third-party testing and higher-potency formulations. Check back soon.
Coming soonHow to take this pair: Take 2,000-5,000 IU vitamin D3 with your fattiest meal of the day. Take 200-400 mg magnesium glycinate with food; evening dosing also supports sleep. Avoid taking calcium and magnesium at the same time in high doses as they compete for absorption. Space them 2+ hours apart if taking both.
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