GLP-1 Medications: Let's Talk Side Effects (and Why You Need a Dietitian!)

The following is for informational purposes only. Please discuss any health/medical issues with your medical team.

GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound are making waves in the world of weight loss and diabetes management. They can be incredibly helpful, but like anything that can make a big change, it's important to understand the full picture, including potential side effects. Think of this post as your friendly guide to navigating the GLP-1 journey, and I'll be shouting from the rooftops why working with a registered dietitian (RD) is absolutely crucial.

GLP-1 Medications: The Good, the Maybe-Not-So-Good

GLP-1 medications work by mimicking a natural hormone that helps regulate your blood sugar and appetite. They can be real game-changers, but they also affect other parts of your body, which can sometimes lead to side effects. And here's a key point: sometimes these side effects aren't directly from the medication, but rather from the rapid weight loss that often happens when you take them.

Tummy Troubles: The Most Common Complaint

Let's be honest, the most common side effects involve your stomach. Nausea (feeling like you might throw up), actually throwing up, diarrhea, and constipation are things many people experience. They can be mild, or they can be a bit more intense, and they can happen now and then or more regularly. Knowing this is a possibility is super important before you start or if you're already taking GLP-1 medications.

Hair Loss: A Question Mark

Some folks have noticed their hair thinning while on GLP-1 medications. Scientists are still figuring out exactly why this happens. Since rapid weight loss can cause hair shedding, it's hard to say for sure if it's the medication itself. It's definitely something to discuss with your doctor, though!

Missing Out on Nutrients: A Sneaky Risk

Losing weight quickly, no matter how you do it, can sometimes mean your body doesn't get all the vitamins and minerals it needs. Protein, iron, B12, vitamin D, and calcium are super important, and if you're running low, it can cause other health issues. And guess what? Because GLP-1 medications often lead to rapid weight loss, this risk is higher.

Gallstones: Another Thing to Keep in Mind

Rapid weight loss, especially with GLP-1 medications, can also increase the risk of gallstones. These are little hard deposits that form in your gallbladder, and they're often connected to your liver producing more cholesterol when you lose weight quickly.

Other Potential Side Effects: The Big Picture

While the above are the most common, there are other potential side effects that are being researched, including possible effects on your pancreas and thyroid. Long-term studies are essential to get the full story.

Registered Dietitians: Your GLP-1 Wingman (or Wingwoman!)

This is where registered dietitians (RDs) become your absolute best friend. Navigating GLP-1 medications and their potential side effects can be tricky, and RDs are the experts who can help you do it safely and effectively. They can:

• Check your nutrition: Figure out if you're missing any key nutrients.

• Create a personalized meal plan:  A plan that works for you, helps manage side effects, and makes sure you get what you need.

• Help with tummy troubles: Give you strategies to deal with nausea, constipation, or diarrhea.

• Keep an eye on things:  And make adjustments to your plan as you go.

Why You Absolutely Need a Dietitian on Your GLP-1 Team

An RD is so much more than a meal planner. This study shows that GLP-1 medications are most effective when paired with personalized support from a dietitian—think clear education, customized nutrition plans, and lifestyle coaching to manage side effects and build healthy, lasting habits.

They’re your go-to nutrition expert, helping you understand how GLP-1 medications (and weight loss itself) impact your body. From making smart food choices to ensuring you’re getting the nutrients you need to feel your best, they’ve got your back every step of the way.

Bottom line: GLP-1s can be powerful tools, but they’re not magic. Partnering with a registered dietitian is essential for getting the most out of your treatment, avoiding pitfalls, and making your weight loss journey truly sustainable. Don’t skip this step—your body will thank you.

Ready to get started? Click here to schedule your free discovery call with a registered dietitian today!

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