Don't Do THIS on a GLP-1? | What the Fitness | Biolayne

Layne Norton dismantles a claim by plastic surgeon Dr. Jonathan Kaplan, who advised that GLP-1 users must avoid artificial sweeteners because the drugs' increased insulin sensitivity combined with a taste-induced insulin spike would cause hypoglycemia. Norton demonstrates that this is entirely unsupported by evidence. He cites multiple randomized controlled trials and meta-analyses showing that artificial sweeteners do not elevate insulin, do not affect blood glucose, and do not increase appetite. To underscore the absurdity, he points out that if the claim were true, everyone consuming a diet drink would experience hypoglycemic symptoms and fainting, which never happens. He explains that GLP-1s do improve insulin sensitivity, but in overweight or obese individuals with compromised insulin function, the drugs simply restore a more normal metabolic state—not a pathologically sensitive one. Thus, even the hypothetical small insulin response from a sweet taste would not cause dangerous blood sugar drops. Norton frames the Kaplan clip as a regressive reliance on science that has been thoroughly debunked by rigorous human intervention studies.