Thinking about GLP-1 for weight loss? Here's what to know

Whether on social media or in the news, you can’t go far without hearing about people taking a GLP-1 for weight loss. These medications have transformed the weight management landscape, offering new hope for people struggling with obesity.

But healthcare providers want you to understand both the promise and the reality of these treatments—because successful weight loss isn't just about finding the right medication.

What are GLP-1s and how do they work?

GLP-1 (glucagon-like peptide-1) medications were originally developed to treat Type 2 diabetes, but researchers discovered something remarkable: people were also losing significant amounts of weight. That’s how GLP-1s entered the weight loss conversation.

Semaglutide is a synthetic version of the GLP-1 hormone that is naturally produced in your intestines. It mimics this hormone's effects on blood sugar control and appetite regulation.

When you eat, your intestines release this hormone, which signals to your brain that you’re satisfied and slows down how quickly food moves through your stomach. GLP-1 drugs amplify these natural signals, helping you feel full longer and reducing those pesky food cravings that can derail your weight loss efforts.

The results can be impressive. In one double-blind trial, people using semaglutide for weight loss saw a loss of 14.9% of their body weight in 68 weeks—significantly more than what's usually achieved through diet and exercise alone.

One thing to note: Type 2 diabetes makes weight loss more difficult, in general, and the average weight loss on these GLP-1 medications is lower in people with diabetes than those without diabetes.

Who should consider GLP-1 for weight loss?

If you’re considering taking a GLP-1 for weight loss, it’s important to note that GLP-1s work best when obesity is impacting your health. If you're looking to lose 10-15 pounds, these powerful medications may not be the right choice. This is primarily due to cost and duration. Once on these medications, you will likely need to stay on them the rest of your life to keep the weight from returning.

GLP-1 drugs for weight loss are specifically designed for people with a:

• Body mass index (BMI) of 30 or higher (obesity)
• BMI of 27 or higher with health conditions like high blood pressure, Type 2 diabetes or sleep apnea
• History of unsuccessful weight loss attempts through lifestyle changes alone

There are also a few other factors to consider and questions to ask yourself: Are you committed to making lifestyle changes? Do you have realistic expectations? Can you handle the potential side effects?

Weight loss medications are tools, not magic solutions, and they require dedication and lifestyle modifications to be truly effective.

Your provider can guide you through this decision-making process and help you decide if taking a GLP-1 for weight loss is the right move for your health goals.

Understanding the GLP-1 side effects

Before starting any new medication, it’s important to understand any potential side effects. Let's talk honestly about what side effects you might experience with GLP-1 drugs.

The most common GLP-1 side effects impact your digestive system. And gastrointestinal effects are the most frequently reported, including:

• Nausea (especially in the first few weeks)
• Vomiting
• Diarrhea
• Constipation
• Stomach pain
• Heartburn

Most people find these side effects improve as their body adjusts to the medication, typically within four to eight weeks. Starting with a lower dose and gradually increasing it can help minimize these issues.

More serious but rare side effects include:

• Pancreatitis (inflammation of the pancreas)
• Gallbladder problems
• Changes in heart rate

While these serious complications are uncommon, they underscore why these drugs require medical supervision. Regular check-ins with your healthcare provider aren't just recommended—they're essential for safe treatment.

Who shouldn't use a GLP-1 for weight loss?

GLP-1s aren't the right choice for everyone. Typically, those who should avoid GLP-1s are those with:

• A personal or family history of certain thyroid cancers
• Multiple endocrine neoplasia syndrome type 2
• A history of pancreatitis
• Severe gastroparesis (delayed stomach emptying)
• Pregnancy or plans to become pregnant

Additionally, if you have a history of eating disorders, severe depression or unrealistic weight loss expectations, it’s important to address these concerns with your physician before considering medication.

The power of healthy habits

Remember: while GLP-1 drugs can be incredibly effective, they’re most successful when combined with fundamental lifestyle changes.

Nutrition

Eating a well-balanced diet remains crucial if you have weight loss goals. Focus on:

• Eating regular, balanced meals with adequate protein
• Choosing whole foods over processed options
• Staying hydrated
• Practicing portion control (which becomes easier with GLP-1 drugs)

Physical activity 

Getting active doesn't have to mean intense gym sessions. Start with:

• 30 minutes of walking most days
• Strength training twice weekly
• Finding activities you genuinely enjoy
• Building movement into your daily routine

Sleep and stress management 

Managing stress and getting adequate sleep are often overlooked but critical components:

• Aim for 7-9 hours of quality sleep.
• Practice stress-reduction techniques like meditation or deep breathing.
• Build a support system.
• Address emotional eating patterns.

Finding an alternative to GLP-1s for weight loss

If GLP-1 medications aren't right for you, here are a few other options to consider:

• Lifestyle or habit-building apps can be highly effective, especially if they include tracking capabilities and professional or clinical guidance. These combine nutrition education, exercise planning and behavioral coaching.
• Oral weight loss medications might be appropriate and are often a good alternative for those who prefer injection-free options.
• Bariatric surgery remains the most effective long-term treatment for severe obesity, particularly for people with BMIs over 40 or those with significant health complications.
• Talk to your doctor to see if there are any underlying causes of weight gain, such as hormonal imbalances, medications or metabolic conditions.

Ultimately, it must be the right fit for you

There are a lot of factors to consider when deciding whether to take weight loss injections, and the decision to use GLP-1 for weight loss should be made with careful medical guidance.

These medications can be life-changing for some people, but they're not a universal solution. It’s important to combine the right medical treatment with sustainable lifestyle changes tailored to your individual needs.

If you're struggling with weight loss and wondering if GLP-1 drugs might help, start with an honest conversation with your healthcare provider. Together, you can evaluate whether these medications fit your health profile and weight loss goals.

Remember: sustainable weight loss is a journey, not a destination. Whether you choose medication, lifestyle changes alone or a combination approach, the goal is finding a path you can maintain long-term for better health and well-being.

Ready to explore your weight loss options? Our Healthy Weight program provides comprehensive, clinical approaches to help you achieve and maintain a healthy weight. GLP-1 prescriptions may vary based on your insurance coverage. Our experienced healthcare team will work with you to develop a personalized plan that fits your lifestyle and health goals.