L. Reuteri & Bleeding Gums | The Actual Research Here
Of the three probiotic strains in ProDentim, one carries noticeably more published evidence than the other two. That's Lactobacillus reuteri, and it's worth understanding on its own.
What makes L. reuteri different
Most oral probiotic strains have a handful of small studies behind them. L. reuteri has something closer to a body of research: a 2020 systematic review in the Journal of Clinical Periodontology pooled results across 14 randomized controlled trials and found consistent reductions in bleeding on probing and gingival index scores compared to placebo.
Why bleeding on probing matters
It's not a cosmetic measure. Bleeding when a dentist probes your gums is one of the earliest, most reliable signs of active gum inflammation — it shows up before visible recession or bone loss. A strain that reliably reduces it is addressing something dentists actually track at every checkup, not a vague wellness metric.
Where the evidence gets thinner
Fourteen trials sounds like a lot until you consider study size, duration, and strain sub-type variation (L. reuteri DSM 17938 and ATCC PTA 5289 show up most often in the literature, and it's not always clear which specific sub-strain a given commercial product uses). None of this invalidates the finding, but it's worth knowing the research isn't a single, massive, definitive trial — it's an accumulation of smaller ones pointing the same direction.
What this means for ProDentim specifically
The formula names L. reuteri as one of three strains, within a total 3.5 billion CFU count that isn't broken down by strain. So while the research on L. reuteri generally is solid, we can't tell you exactly how much of it you're getting per tablet. See the full ingredient list for the rest of the formula.
Written for general information, not medical advice. This site earns a commission on purchases through links to the official store — see our about page.
