Erin Palinski-Wade said the viral warm-water gelatin drink can briefly curb appetite by expanding in the stomach and helping trigger fullness signals before a meal.
1 tablespoon of plain, unflavored gelatin mixed into hot water works through stomach volume and a short-lived hormone response, she said, not by mimicking semaglutide or burning fat.
The dietitian warned that calling it “natural Ozempic” is misleading because gelatin does not act at GLP-1 receptors and should not replace proven nutrition or medication.
Gelatin also is not a complete protein because it lacks tryptophan, making meal replacement risky; she said healthy adults should use it only 15 to 30 minutes before one daily meal.
Pregnant or breastfeeding people, and those with kidney disease or animal allergies, should consult a doctor before trying the low-cost portion-control tactic.