How to Reduce Nausea From Ozempic and Other GLP-1 Medications

kathleenpachas
1 day ago
4 min read

GLP-1 drugs like Ozempic and Wegovy have become popular recently because they help with weight loss.[1] About 1 in 8 American adults has tried these medications. Most GLP-1 drugs are given as injections just under the skin, usually in the upper arm, thigh, or belly. These drugs mimic a natural hormone that helps control blood sugar and appetite. They slow down how quickly food leaves the stomach and signal the brain to help you feel full. While many people with obesity have lost weight using these drugs, they can also cause side effects. The most common is an upset stomach. Up to 40 percent of people taking GLP-1 drugs feel queasy, lose their appetite, or both.[2] Nausea and vomiting are among the most frequent and bothersome side effects. Data from several clinical studies found that 40 to 70 percent of people on GLP-1 drugs will feel nauseous at some point while taking them.[3] However, nausea is usually mild to moderate and improves in about a week after symptoms start.

Why nausea happens

GLP-1 medications can cause nausea because they make the part of your brain that controls it more sensitive. They also slow down how quickly your stomach empties, so food stays in your stomach longer and can make you feel sick. Nausea is more common when you first start the medicine or when your doctor increases your dose. These effects are part of how the medication works, but they can be uncomfortable as your body gets used to them.

When does nausea usually occur

Nausea is most common:

In the first 4-5 weeks of starting treatment
after dose increases
during periods of dietary change

Nausea is usually worse during the first few weeks of treatment and gets better as your body adjusts. Symptoms are often mild to moderate and tend to decrease within about eight days after they start.[4]

What May Help Manage Nausea

Eat slowly
Eat only when hungry rather than forcing meals
Choose smaller, more frequent meals instead of three large meals a day
Avoid lying down after eating
Limit sugary foods and sugar-sweetened drinks
Limit high-fat foods, which may worsen symptoms
Stay well hydrated with plenty of water or other sugar-free beverages
Avoid drinking through a straw, which can increase swallowed air and bloating

If nausea occurs, try bland or soothing foods such as:

Crackers
Apples
Mint
Ginger root
Ginger tea or ginger-based drinks
Keep a food diary to help identify foods, portion sizes, or meal timing patterns that may trigger symptoms.

Source: Gorgojo-Martínez et al. (2022).

Foods To Limit or Avoid

Some foods can worsen GLP-1 side effects. Everyone is different, so it may take some time to find out what triggers your symptoms.

In general, try to limit or avoid:

Sources of added sugar, including:
- Juice
- Soda
- Candy
- Desserts
Refined carbohydrates, including:
- White bread
- Crackers
- White rice
High-fiber foods, including:
- Grains
- Seeds
Processed foods, including:
- Packaged snacks
High-fat foods, including:
- Pizza
- Fried chicken
Spicy foods, including:
- Hot sauce
- Hot peppers

Source: Gorgojo-Martínez et al. (2022).

When nausea may be a concern

Medical evaluation may be needed if:

Nausea is severe or persistent
Vomiting prevents adequate hydration or nutrition
There are signs of dehydration (dizziness, weakness, dark urine)
Symptoms do not improve over time or worsen with continued use

If you have ongoing or severe stomach problems, talk to your doctor. Your healthcare provider will check your symptoms and may need to change your GLP-1 medication dose.

Possible risks of GLP-1s

GLP-1 drugs are generally safe, but there are some risks. Ongoing nausea or vomiting can sometimes lead to dehydration, kidney problems, or malnutrition. People with serious stomach or bowel conditions, like gastroparesis or uncontrolled inflammatory bowel disease, should not use GLP-1 medications. These drugs are also not safe during pregnancy or breastfeeding.[5]

Key takeaway

Nausea is a common side effect of GLP-1 medications due to their effects on digestion, stomach emptying, and appetite signals. While nausea can be uncomfortable, it usually gets better as your body adjusts. If your symptoms are severe, last a long time, or make it hard to eat, drink, or go about your day, contact your healthcare provider.

Getting used to a GLP-1 medication and changing your eating habits can feel overwhelming at first. Your healthcare provider may suggest working with a registered dietitian to help you create a meal plan that meets your needs and reduces side effects. It may take some time and a bit of trial and error to find which foods, meal sizes, and eating patterns work best for you.

Many people find it helpful to connect with others who use GLP-1 medications to share recipes, meal ideas, and tips. Support from family and friends can also make adjusting easier.

Managing side effects often takes time. With patience, good communication with your healthcare team, and the right support, most people can find ways to feel better and stay on track with their treatment and weight loss goals.

References:

Harvard Health Publishing. (2024, April 11). Understanding new weight-loss drugs. Harvard Medical School. https://www.health.harvard.edu/healthy-aging-and-longevity/understanding-new-weight-loss-drugs
Alhazmi, A., & le Roux, C. W. (2026). Do no harm: managing nausea and vomiting in GLP-1 based obesity therapies. Frontiers in endocrinology, 17, 1788698. https://doi.org/10.3389/fendo.2026.1788698
Gorgojo-Martínez, J. J., Mezquita-Raya, P., Carretero-Gómez, J., Castro, A., Cebrián-Cuenca, A., de Torres-Sánchez, A., García-de-Lucas, M. D., Núñez, J., Obaya, J. C., Soler, M. J., Górriz, J. L., & Rubio-Herrera, M. Á. (2022). Clinical Recommendations to Manage Gastrointestinal Adverse Events in Patients Treated with Glp-1 Receptor Agonists: A Multidisciplinary Expert Consensus. Journal of clinical medicine, 12(1), 145. https://doi.org/10.3390/jcm12010145
Gorgojo-Martínez, J. J., Mezquita-Raya, P., Carretero-Gómez, J., Castro, A., Cebrián-Cuenca, A., de Torres-Sánchez, A., García-de-Lucas, M. D., Núñez, J., Obaya, J. C., Soler, M. J., Górriz, J. L., & Rubio-Herrera, M. Á. (2023). Clinical Recommendations to Manage Gastrointestinal Adverse Events in Patients Treated with Glp-1 Receptor Agonists: A Multidisciplinary Expert Consensus. Journal of Clinical Medicine, 12(1), 145. https://doi.org/10.3390/jcm12010145
Sodhi, M., Rezaeianzadeh, R., Kezouh, A., & Etminan, M. (2023). Risk of Gastrointestinal Adverse Events Associated With Glucagon-Like Peptide-1 Receptor Agonists for Weight Loss. JAMA, 330(18), 1795–1797. https://doi.org/10.1001/jama.2023.19574

Assessed and Endorsed by the MedReport Medical Review Board