Doctors warn biotin may harm cancer care
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- Cancer patients turn to biotin supplements hoping to restore hair lost during treatment.
- Doctors warn that biotin may do more harm than good for cancer care.
- Biotin is marketed for stronger hair and nails, yet there is little evidence it helps cancer‑related hair loss.
Why it matters: Cancer patients risk worsening outcomes if biotin undermines treatment, while oncologists must spend extra time counseling on supplement use, potentially raising care costs and complicating therapy plans.
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