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Nicotinamide Cuts Skin Cancer Risk by 54% in Veterans

9/25/2025

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Summary

Story summary

Study analyzes health records of over 33,000 U.S. veterans and finds nicotinamide, a vitamin B3 derivative, reduces skin cancer risk.
It shows a 14% reduction in new skin cancers, rising to 54% when treatment starts after a first diagnosis.
Observational design limits definitive conclusions; further research is planned to confirm findings, and nicotinamide is inexpensive, well-tolerated, and available without prescription.

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Story summary

Study analyzes health records of over 33,000 U.S. veterans and finds nicotinamide, a vitamin B3 derivative, reduces skin cancer risk.
It shows a 14% reduction in new skin cancers, rising to 54% when treatment starts after a first diagnosis.
Observational design limits definitive conclusions; further research is planned to confirm findings, and nicotinamide is inexpensive, well-tolerated, and available without prescription.