GLP-1 vs. GLP-1/GIP: Which GLP-1 is right for you?
Understand the key differences between GLP-1 and GLP-1/GIP medications to make an informed decision for your weight loss goals.
Articles · Weight loss · Updated Oct 11, 2025
If you're exploring prescription weight loss medications, you're likely comparing two of the most popular GLP-1s on the market: GLP-1 and GLP-1/GIP. Both have helped thousands of people lose significant weight, curb appetite, and improve metabolic health—but how do they actually differ?
This guide breaks down the key differences between GLP-1 and GLP-1/GIP, so you can feel confident in choosing the option that fits your lifestyle, health goals, and budget.
How they work
GLP-1s are receptor agonist, which means it mimics a natural hormone that reduces appetite, improves insulin sensitivity, and slows digestion.
GLP-1/GIP is a dual agonist, activating both GLP-1 and GIP receptors. This dual action may enhance appetite control and improve blood sugar even more than GLP-1 for some individuals. Dual-action medications raise naming questions, so tirzepatide vs zepbound is a helpful explainer on what is actually different between the two.
Both medications are administered as once-weekly injections and are designed to help with long-term weight loss and blood sugar regulation.
Weight loss results
Clinical trials show that both medications are effective for weight loss. On average:
- GLP-1 users may lose around 15 percent of their body weight over time.
- GLP-1/GIP users may lose closer to 20 percent or more, depending on dosage and adherence.
While GLP-1/GIP has shown slightly greater average weight loss in clinical studies, both options can deliver life-changing results when paired with proper nutrition, hydration, and lifestyle changes.
Side effects
GLP-1s and GLP-1/GIPs share similar side effects, especially during the first 4–8 weeks as your body adjusts. These may include:
- Nausea
- Bloating
- Constipation or diarrhea
- Fatigue
- Burping or acid reflux
- Appetite suppression
GLP-1/GIP may come with a slightly higher incidence of burping and gastrointestinal sensitivity due to its dual-action mechanism.
The good news: many of these symptoms improve with time, and they can often be reduced with a few simple strategies—like eating smaller meals, avoiding greasy foods, and staying hydrated with low-sugar electrolyte support like HydroBelle.
Cost and accessibility
GLP-1 and GLP-1/GIP are both drugs that can cost over $1,000 per month without insurance. However, compounded GLP-1 is available through select telehealth providers and compounding pharmacies, offering a much more affordable alternative.
GLP-1/GIP, on the other hand, is no longer legally allowed to be compounded due to recent changes in FDA guidance. This means that if you want to take GLP-1/GIP, you'll need to obtain a brand-name prescription through insurance or pay out of pocket.
For those looking for an accessible and budget-friendly option, GLP-1 is currently the more flexible and affordable choice.
Which should you choose?
GLP-1 may be right for you if:
- You're looking for a more affordable, compounded alternative
- You prefer a medication with long-term data and availability
- You want to get started quickly without waiting on insurance
GLP-1/GIP may be a good fit if:
- You're seeking the highest possible weight loss results
- You can access brand-name medication through insurance
- You're managing blood sugar in addition to weight loss
Ultimately, the best choice depends on your health history, budget, and preferences. A licensed provider can help you weigh the benefits and decide what makes sense for your journey.
What about supplement support?
Regardless of which medication you choose, supporting your body with hydration and cellular energy can make a major difference.
- HydroBelle hydration sticks are a great option for replenishing electrolytes without added sugar or artificial ingredients—especially important if you're experiencing fatigue or nausea.
- NAD+ is formulated to support energy production, cellular health, and cognitive clarity—ideal if you're feeling run down or experiencing brain fog during treatment.
Ready to start your GLP-1 journey?
At Belle, we offer affordable compounded Semaglutide, along with expert medical support, lifestyle guidance, and science-backed wellness products like HydroBelle and VitaBelle NAD+ to help you get the most out of your treatment.
Get started with Belle and shop HydroBelle to feel your best at every stage of your weight loss journey.
Education only, not medical advice.
