Biotin Supplements May Interfere With Cancer Test Results: What Patients Need to Know

The Onco Life Podcast · May 19, 2026 · 1m

Doctors are warning that high-dose biotin supplements, commonly found in hair, skin, and nail products, may interfere with important cancer lab tests. For patients undergoing cancer treatment or follow-up care, inaccurate blood test results could affect treatment decisions, hormone monitoring, and tumor marker tracking.In this episode, we explain how biotin supplements can disrupt cancer-related lab testing and what patients should discuss with their healthcare team before taking over-the-counter beauty supplements.You’ll learn: Why biotin supplements may interfere with cancer test results…