Does taking Vitamin D3 (cholecalciferol) 60,000 IU two weeks before a Vitamin D test affect the test results?

Answered by 1 Apollo Doctors

Dr Dhankecha Dineshbhai

General Practitioner

MBBS
6+ Yrs

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Taking 60,000 IU cholecalciferol within 2 weeks can raise serum levels temporarily and affect test accuracy. Its best to wait at least 4 to 6 weeks after stopping supplements before retesting Vitamin D to assess baseline level accurately. You should retest only after the washout period for reliable results.

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Answered 16/09/2025

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