4:35

Aaron Hartman, MD (YouTube video) warns that antiseptic mouthwashes can harm health by killing beneficial oral bacteria. He explains that oral bacteria convert dietary nitrates (from beets/leafy greens) into nitrite/nitric oxide precursors that help dilate blood vessels and lower blood pressure; removing these bacteria (e.g., with mouthwash) may raise blood pressure and cardiovascular risk and has been associated with higher diabetes risk. He connects poor oral health (periodontal disease, tartar, bad breath) to systemic inflammation, gut seeding, and diseases (including dementia/alzheimer’s cited broadly). He recommends non-antiseptic strategies to improve oral microbiota: oil pulling (coconut/olive oil), oral probiotics and probiotic toothpastes, selective essential-oil mouthwashes, and cautions that low stomach acid (and PPI use) can impair nitrate→nitric oxide conversion and has been associated with adverse outcomes.

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