Anne Truong MDMen's Sexual Health Doctor

Does Mouthwash Cause ED? The Hidden Truth! 🦷 #MensHealth #ED #Fluoride

11 Mar 2026 · 1 min

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In this brief video, Dr. Anne Truong explains that fluoride-containing mouthwash (and toothpaste) can indirectly contribute to erectile dysfunction (ED). She argues that fluoride kills beneficial bacteria in the back of the mouth that are involved in producing nitric oxide (NO). Reduced NO levels can impair blood flow, which is essential for achieving an erection. Based on this mechanism, she advises viewers to stop using fluoride-based oral care products to avoid potential ED risk.

Chapters

Does mouthwash cause ED? Well, indirectly, because when you take in mouthwash that has fluoride in it— so fluoride, when you rinse your mouth with fluoride mouthwash, it kills the bacteria in the back of your mouth. And when it kills the bacteria in the back of your mouth, it makes you make less nitric oxide. And when you make less nitric oxide, that will affect the blood flow when you get an So indirectly, mouthwash do cause ED. So that's why you should stop taking fluoride product. You should stop using toothpaste that has fluoride.