Users of GLP-1 based medications such as Ozempic are encountering a new and unpleasant side effect commonly referred to as “Ozempic breath.” This condition, characterized by bad breath, arises due to the way these drugs slow digestive processes, allowing food to remain longer in the stomach and ferment. The fermentation leads to the production of hydrogen sulfide gas, resulting in sulfurous burps. Additionally, GLP-1 drugs can reduce saliva production, causing dry mouth, and may induce ketosis, a metabolic state associated with a distinct fruity, sweet, or metallic breath odor.

While frustrating for users, this side effect has created an unexpected boost for confectionery companies specializing in breath-freshening products. Hershey Company CEO Kirk Tanner noted in a recent earnings call that sales of mints and chewing gum have risen significantly alongside the growing use of GLP-1 drugs. The company’s Ice Breakers brand, for example, experienced an 8% sales increase in the last quarter. Tanner attributed this boost to “functional snacking tailwinds,” which include the expanding adoption of GLP-1 therapies. Hershey also reported a 17% rise in protein bar sales during the same period.

The increased consumption of protein-rich foods among GLP-1 users is a notable factor driving this demand. Medical experts encourage those on these medications to consume more protein to maintain muscle mass, support metabolic rate, and mitigate hunger—key concerns given the appetite-suppressing effects of GLP-1 drugs. Recent U.S. dietary guidelines recommend that adults consume between 1.2 to 1.6 grams of protein per kilogram of body weight daily, significantly higher than the former standard of 0.8 grams per kilogram. For a person weighing 150 pounds, this equates to approximately 82 to 109 grams of protein daily.

Research from Pittsburgh suggests even higher protein intake for GLP-1 users, recommending 1.2 to 2 grams per kilogram of body weight. This range would require a 150-pound individual to consume between 82 and 136 grams of protein, which might mean eating the equivalent of about 22 large eggs or 20 ounces of skinless chicken breast each day.

In addition to greater protein consumption, individuals taking GLP-1 medications are advised to increase their fiber intake, stay well-hydrated, and engage in resistance training. Hydration, in particular, can help counteract “Ozempic breath” by alleviating dry mouth, rinsing odor-causing bacteria, and reducing the negative impact of acid reflux on oral health. Other recommended oral hygiene measures include using antimicrobial mouthwash, tongue scraping, and chewing sugar-free gum. Dental professionals suggest consulting a dentist before introducing new oral care routines to ensure safety and efficacy.