GLP-1 Weight-Loss Drugs Trigger Unusual Fragrance Obsession

People using GLP-1 weight-loss meds report an unexpected fixation on fragrances and perfumes as food becomes less rewarding. Medical experts say this may reflect heightened sensory awareness and altered smell processing linked to GLP-1 signaling, with some reports of smell distortions (parosmia) in safety data. While anecdotes abound, larger studies are needed to understand why GLP-1s influence scent and taste and whether this scent fixation is a direct drug effect or a broader sensory shift.