Vitamin A and Vitamin D3: Can You Take Them Together?

Notable interaction — adjust timing

Vitamin A and Vitamin D3 can interact. Very high vitamin A may interfere with vitamin D signaling Avoid very high doses of vitamin A (>10,000 IU) with vitamin D therapy.

What the evidence says

minorconflict· limited evidence

Very high vitamin A may interfere with vitamin D signaling

Competition for nuclear receptors and binding proteins at very high doses

What to do: Avoid very high doses of vitamin A (>10,000 IU) with vitamin D therapy.

Dose matters: >10,000IU vitamin A + >5,000IU vitamin D may compete. Minimal risk: <5,000IU vitamin A with normal vitamin D doses.

Vitamin A

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Vitamin D3

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Compare Vitamin A vs Vitamin D3 Check your full stack

Related interactions

Vitamin A & Vitamin E Vitamin A & Vitamin K2 Calcium & Vitamin A Multivitamin & Vitamin A Calcium & Vitamin D3 Vitamin D3 & Vitamin K2

Frequently asked questions

Can you take Vitamin A and Vitamin D3 together?: Vitamin A and Vitamin D3 can interact. Very high vitamin A may interfere with vitamin D signaling Avoid very high doses of vitamin A (>10,000 IU) with vitamin D therapy.
Do Vitamin A and Vitamin D3 interact?: Very high vitamin A may interfere with vitamin D signaling Competition for nuclear receptors and binding proteins at very high doses
Should you separate Vitamin A and Vitamin D3?: Avoid very high doses of vitamin A (>10,000 IU) with vitamin D therapy.

This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.