Does Weed Cause ED? The Truth About Marijuana & Libido

10 Mar 2026 · 11 min
10:32

Dr. Anne Truong explains how THC impairs blood flow and may lower testosterone, potentially causing ED. She recommends a 90-day weed break, hormone testing, and the Mediterranean diet. Fluoride mouthwash and antacid medications can also reduce nitric oxide production and worsen the problem.

Questions this video answers

Yes, weed can impair blood flow, increase apathy and anxiety, and may lower testosterone, contributing to ED. A 90‑day weed‑free trial and hormone testing are recommended.

Indirectly, fluoride‑containing mouthwash can kill oral bacteria that produce nitric‑oxide, reducing nitric‑oxide levels and thus blood flow needed for erections. Switching to non‑fluoride products is advised.

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