What the Science Actually Says As of early 2026, there is no published clinical trial confirming that GLP-1 medications directly damage tooth enamel or gum tissue
Medical Evidence on Dose Splitting and Semaglutide Safety No randomized controlled trials have directly compared once-weekly semaglutide injections to split-dose protocols, meaning the safety and efficacy of dose splitting remain unknown from a clinical evidence perspective
P for interaction for all-cause mortality = .78)
Add-on Combination Therapy with Pioglitazone A total of 353 patients with type 2 diabetes mellitus participated in a 24-week, randomized, double-blind, placebo-controlled trial designed to assess the efficacy of sitagliptin in combination with pioglitazone
Limitations of Current Research No human trials: All existing data comes from animal studies or anecdotal self-experimentation
They also help explain why only about one-third to half of people remain on GLP-1s after a year, with cost likely playing a role as well