Can I Take vitamin a and vitamin d Together?

SUMMARY:

At typical dietary or standard supplement doses, taking vitamin A and vitamin D together is generally considered likely safe; both are fat‑soluble vitamins and are often co‑used. However, prolonged high‑dose use of either (especially vitamin A in pregnancy or very high vitamin D raising calcium) can cause accumulation and toxicity, so avoid megadoses without medical supervision.

ADDITIONAL NOTES:

Both are fat‑soluble vitamins (A and D) that can accumulate in the body. Usual-dose co‑supplementation is commonly tolerated, but long‑term high doses increase risk of hypervitaminosis: vitamin A (liver toxicity, teratogenicity at very high doses) and vitamin D (hypercalcemia, nausea, weakness). Monitor for symptoms such as nausea, vomiting, headache, confusion, bone pain, or signs of high calcium. Discuss high‑dose therapy, pregnancy, kidney disease, or concurrent medications that affect calcium or vitamin metabolism with a clinician.