If you’ve heard the buzz about oral probiotics , lozenges or melts that deliver beneficial bacteria to your mouth, you’re not alone. The idea is simple: just as gut probiotics can nudge your intestinal microbiome toward balance, oral probiotics aim to support a healthy oral microbiome—the community of microbes on your tongue, teeth, gums, and cheeks. A healthier oral ecosystem has been linked to fresher breath, more resilient gums, and less opportunistic overgrowths like Candida (oral thrush). But which claims are supported by research, and what should you look for in a product and delivery format?

This guide distills the current science, anchored in a peer-reviewed overview of probiotics in oral health and mechanisms of action . They also bring in clinical trials and au

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