Welcome to Your GLP-1 Resource Center

GLP-1 medications mimic a hormone involved in blood sugar regulation, digestion, appetite, and feelings of fullness. Depending on the medication and why it is prescribed, they may help improve blood sugar control, reduce appetite, and support weight loss.

They also slow the movement of food through the stomach. That contributes to feeling full longer, but it can also cause digestive side effects. Not every medication in this category works in exactly the same way, and individual responses can vary.

Tirzepatide, sold under brand names including Mounjaro and Zepbound, is often grouped with GLP-1 medications, but it actually works on two hormone pathways. It activates both GLP-1 and GIP receptors, which is why it is called a dual agonist.

Semaglutide products, including Ozempic and Wegovy, act on the GLP-1 receptor alone. Newer medications may combine additional pathways, but that does not automatically make one medication the right choice for everyone. Treatment decisions should be based on your health history, goals, response, and prescriber’s guidance.

Digestive symptoms are the most frequently reported. These can include nausea, diarrhea, constipation, vomiting, abdominal discomfort, bloating, indigestion, and reflux. Some people also experience fatigue, headache, dizziness, or changes in how certain foods taste or feel.

Side effects are often most noticeable when treatment begins or after the dose is increased. They may improve as the body adjusts, but persistent or worsening symptoms should not simply be ignored.

Read our guide, Taking a GLP-1? Here Are 5 Side Effects Nobody Warned You About, for a closer look.

A higher dose can have a stronger effect on appetite and how quickly food moves through the stomach. That can make nausea, fullness, constipation, diarrhea, or abdominal discomfort more noticeable.

This is one reason GLP-1 medications are generally increased gradually. If symptoms become difficult to manage, contact your prescriber before taking the next step in your dosing schedule. Do not reduce, increase, space out, or stop your medication on your own. Your prescriber may want to review the timing of your symptoms, your food and fluid intake, other medications, and whether your current dose is appropriate.

When you cannot eat much, prioritize foods that provide meaningful nutrition in a smaller portion. Protein is especially important. Eggs, yogurt, cottage cheese, fish, poultry, tofu, beans, and protein drinks may be easier to manage than a large meal.

Eat slowly and stop when you feel comfortably full. Smaller meals may be better tolerated than trying to eat a traditional full plate. Very rich, greasy, or oversized meals can worsen nausea or uncomfortable fullness for some people.

If you are regularly unable to eat enough, are becoming weak or lightheaded, or cannot keep fluids down, contact your healthcare provider.

Weight loss can include both fat and lean tissue. Protecting muscle requires more than watching the number on the scale.

Make protein a regular part of your meals and include resistance exercise if it is safe for you. Pay attention to strength, balance, energy, and physical function. A slower, sustainable pace of weight loss may also make it easier to meet your nutritional needs.

Our guides, How to Preserve Muscle While Losing Weight and Protein: The Foundation of Muscle, Metabolism, and Healthy Aging, provide practical places to begin.

Possibly, but “natural” does not automatically mean appropriate or interaction-free. GLP-1 medications slow gastric emptying, which may affect how some oral medications are absorbed. Supplements can also cause nausea, constipation, diarrhea, or changes in blood sugar that may complicate the picture.

Give your prescriber or pharmacist a complete list of your medications, vitamins, herbs, powders, and other supplements. Include the product name, ingredients, dose, and how often you take it.

Do not use a supplement marketed as a “natural Ozempic,” GLP-1 booster, or medication replacement. If you are unsure about a product, Ask Pharmacist Eddie before adding it.

Contact your healthcare provider if symptoms are persistent, worsening, interfering with eating or drinking, or making it difficult to complete normal activities.

Seek prompt medical attention for severe or ongoing abdominal pain, repeated vomiting, signs of dehydration, severe abdominal swelling, an inability to pass stool or gas, or symptoms of an allergic reaction. Severe pain that may extend toward the back requires evaluation because pancreatitis is a potential concern. Upper abdominal pain accompanied by fever, yellowing of the skin or eyes, or pale stools may require gallbladder evaluation.

When in doubt, it is safer to ask than to assume a severe symptom is a normal part of treatment.

The healthiest stopping point is not necessarily the lowest number you can reach. Look at the broader picture: blood pressure, blood sugar, cholesterol, strength, energy, nutritional intake, body composition, and how you function from day to day.

Ongoing fatigue, weakness, difficulty eating enough, loss of strength, excessive hair shedding, or continued weight loss beyond your intended goal may signal that it is time to discuss maintenance with your prescriber.

Do not change your medication schedule on your own. Read When to Stop Losing Weight on GLP-1s for additional signs to consider.

Keep the record simple enough that you will actually use it. Helpful information may include your medication and dose, injection date, appetite, digestive symptoms, fluid intake, bowel habits, protein intake, activity, energy, and any changes in strength.

If your provider has asked you to monitor weight, blood sugar, blood pressure, or another measurement, record those as directed. Add questions as they occur so you do not have to remember everything during your appointment.

The free GLP-1 Progress Journal brings these details together in one place.