Why festive meals feel different on GLP-1 drugs

People taking GLP-1 medicines may need to rethink portions, alcohol and family pressure as appetite and cravings change over the festive season.

For people taking GLP-1 drugs such as Wegovy, Zepbound or Ozempic, a holiday table can feel less like a test of willpower than a reminder that appetite has changed. The medicines, which include semaglutide and liraglutide, work by mimicking a natural gut hormone that helps regulate blood sugar, slows digestion and reduces hunger, while also dampening cravings and food preoccupation. Dr Robert Catania, director of metabolic and bariatric surgery at Southern New Hampshire Health, says many patients are surprised by how little they want to eat once they start treatment.

That shift can make festive meals easier to navigate, but it can also bring discomfort if people try to eat as they did before. Catania advises planning ahead rather than arriving hungry and aiming to recreate a full pre-treatment portion. He also cautions against skipping a dose simply to make room for dinner, arguing that the medication is part of a longer-term effort to improve health and maintain weight loss. For some patients, side effects such as nausea, bloating or constipation can make overdoing it especially unpleasant.

A smaller plate can help. Catania recommends choosing one that naturally limits portion size while still allowing a taste of several dishes, which can make serving more manageable without making the meal feel restrictive. The same principle often applies to sweets. He notes that some people on GLP-1 therapy no longer get the same reward response from desserts that they once did, so there is little point in forcing down extra cake or pie if the first bite is no longer satisfying.

Alcohol can change, too. Many people say they enjoy it less or find their tolerance has fallen sharply, which means the drinks that used to feel routine can now have a much stronger effect. Catania says that makes it wise to be cautious and avoid assuming that a familiar amount will feel the same as it did before treatment. In practice, holiday celebrations may now require more attention to pacing than to indulgence.

The emotional side can be harder than the physical one. Families often read food as affection, so smaller portions or a refusal of second helpings can attract unwanted attention. Catania suggests deciding in advance how much detail to share, if any, and preparing a simple response before arriving. For those who do not want to discuss medication, he recommends having a polite explanation ready, whether that means saying they are already full, that their stomach feels unsettled or that they ate beforehand. The point, he says, is to have an answer ready long before the questions begin.