Ozempic can be highly effective for weight loss, but there are definitely some unpleasant side effects to contend with, as the makers of the drug, Novo Nordisk, warn about. Nausea, constipation, and stomach pain are common, but avoiding certain foods and behaviors can make a difference. Here are 20 things to avoid while on Ozempic, to make the most of the medication and encourage healthy weight loss.
Too Much Sugar
Added sugars, and sugary sodas, can spike blood sugar. Novo Nordisk, the maker of Ozempic and Wegovy, recommends that people avoid sugary foods while on the drug. “If you are taking medication to lower your sugar levels, it is advisable to avoid excess sugar consumption,” Dr. Dina Peralta-Reich, MD, FAAP, FOMA, tells Parade. “Failure to watch what you eat and keep your sugar levels elevated may prevent you from seeing the intended results of the medication,” she shares.”
Ultra-Processed Foods
Ultra-processed foods can make side effects of Ozempic worse. “This medication slows down gastric emptying and the dense food will move much slower through your intestines, which can make you feel sick [and experience] nausea, vomiting, reflux and abdominal pain,” says Dr. Peralta-Reich. “Someone may not see the results they’re looking for either.”
High-Fat Foods
Foods high in saturated and trans fats can make side effects of Ozempic worse. Some people complain of diarrhea and stomach pains. “I’ve seen an almost dumping syndrome-like response in people taking GLP-1s when they eat simple carbohydrates and high-fat foods,” Dr. Shauna Levy, a specialist in obesity medicine and medical director of the Tulane Bariatric and Weight Loss Center in New Orleans, tells TODAY.
Sitting All Day
Staying active is important while on Ozempic. Regular exercise is not only important for health, it can prevent muscle loss. The goal should be fat loss, and getting strong.
Not Hydrating
Don’t forget to drink your water and stay hydrated. Drinking water can help with side effects of Ozempic, especially nausea. Ozempic.com recommends drinking clear or ice-cold drinks to combat any nausea and discomfort.
Too Much Alcohol

Avoid alcohol on Ozempic, experts advice. “One, it’s just empty calories. Two, it tends to make people make decisions that they otherwise might not make,” says Dr. Levy. “It could increase hunger, and the whole point of GLP-1s, or at least one of the points, is to decrease hunger. So it sort of negates their purpose.”
Be Mindful of Portions
Ozempic keeps food in the stomach longer, so bigger portions can cause discomfort. “Understanding that overall portions are smaller on these medications, we want to optimize nutritional intake and consume the ‘best’ calories available,” obesity medicine physician Dr. Christopher McGowan tells TODAY. “The focus should be on lean protein, healthy fruits and vegetables, adequate fiber and adequate fluid intake.”
Be Mindful of Coffee
“Overall, coffee is perfectly fine to consume, but for some individuals can lead to stomach irritation,” says Dr. McGowan. “Therefore, I recommend drinking coffee in moderation, such as one to two cups a day. Patients should also be mindful of calorie-dense additives, like cream and sugar.”