Diet & Exercise While Taking a GLP-1: How to Support Long-Term Success

Publish Date: Jul 1st, 2026
Contributor: Julie Coffey

GLP-1 medications can be an effective tool for weight management, but medication is only one part of the equation. Nutrition, exercise, and hydration all play a critical role in achieving lasting results, as does having the right guidance along the way.

“GLP-1 medications are a powerful tool, and they work best when patients understand how to support themselves with the right habits,” says Julie Coffey, ANP-C, nurse practitioner at Exceptional Health. “What you eat and how you move play an important role in determining how effective and well-tolerated your treatment will be.”

Below, Julie explains the key dietary and exercise considerations for patients taking a GLP-1 medication for weight loss.

What Should You Eat While Taking a GLP-1?

The tenets of nutrition while taking a GLP-1 can be summarized using the MEAL framework, developed by Mehrtash et al. and published in JAMA Internal Medicine (2025).

M: Muscle Maintenance

Maintaining muscle mass is one of the most important priorities for patients on GLP-1 therapy. Muscle loss is a real risk when losing weight, particularly when taking a GLP-1, and can result in decreased bone density, increased risk of falls and bone fractures, and impaired functional mobility. Preventing muscle loss is achieved through the synergy of two fundamental habits: consuming adequate dietary protein and engaging in consistent weight bearing exercise.

“Doing one without the other is not sufficient,” says Julie. “Both protein and strength training are essential. You cannot protect muscle with protein alone if you are not challenging it.”

A general recommendation is to consume approximately 1.5 grams of protein for every kilogram of your ideal body weight. For example, if your ideal body weight is 180 pounds (82 kilograms), your daily protein target would be approximately 120 grams (1.5 g x 82 kg) throughout the day. Eating protein-rich foods first at each meal can help maximize intake before GLP-1-related fullness sets in.

E: Energy Balance

Because GLP-1 medications are designed to suppress appetite, making every calorie count becomes especially important to ensure patients meet their nutritional needs.

Fill up on nutrient-dense foods including fruits, vegetables, nuts, legumes, and whole grains, while limiting processed foods, soda, candy, pastries, and chips. Smaller meals that combine protein, fiber, and healthy plant-based fats are a practical approach for patients navigating a reduced appetite.

A: Avoid Side Effects

Certain dietary choices can go a long way in managing the most common side effects associated with GLP-1 medications.

To help prevent constipation, increase fiber intake gradually toward a goal of 30 to 40 grams daily, paired with consistent hydration. For nausea, limit fried foods, high-sugar foods, and carbonated beverages. To reduce acid reflux, eat smaller portions, avoid lying down for two to three hours after meals, and limit high-fat foods.

L: Liquid Intake

Because GLP-1 medications not only suppress appetite but also thirst, it is important to ensure adequate fluid intake to avoid dehydration, especially when taking certain other medications, during times of illness, and in hot weather. Aim for 2 to 3 liters of fluid daily through water and low-sugar electrolyte-enhanced beverages, and limit alcohol and sugar-sweetened drinks.

How Much Exercise Should You Get While Taking a GLP-1?

Consistent exercise is not optional for patients on GLP-1 therapy. A combination of aerobic activity and strength training produces the best long-term outcomes.

Aerobic Exercise

The American Heart Association/American College of Cardiology recommends at least 150 minutes of moderate-intensity aerobic exercise per week, or at least 75 minutes of vigorous intensity aerobic exercise per week (or a combination of both). Some examples of moderate-intensity exercise can include brisk walking, jogging, cycling, swimming, dancing, and even mowing the lawn.

“The goal is to find something you actually enjoy and can be consistent with,” says Julie. “Sustainable activity looks different for every person.”

Strength and Resistance Training

Strength training is equally important, particularly for its role in preserving muscle mass during weight loss. Two to three sessions per week of approximately 30 minutes each is a reasonable minimum target, using whatever format works best, whether that is dumbbells, resistance bands, kettlebells, body-weight exercises, or water-based exercise. Community fitness classes, gym-based programs, and guided online workouts are all approaches that work well for different patients.

Considerations for Older Adults

For older adults or patients with functional limitations, balance and mobility training is also worth incorporating into the routine. When possible, working with a qualified trainer or physical therapist is recommended.

Common Mistakes People Make While Taking a GLP-1

Falling Short on Protein Intake

Reduced appetite can make it easy to undereat, and protein is often the first casualty. Even when hunger fades, protein intake still matters for preserving muscle and meeting nutritional needs.

Not Doing Enough Strength-Based Exercise

Aerobic activity alone is not sufficient and should be complemented by strength training to help build muscle, maintain strong bones, and protect functional mobility for the long term.

Ignoring Medication Side Effects

Patients should communicate openly with their care team when side effects develop. Leaving them unreported is one of the most common and most avoidable mistakes patients make.

Increasing the Dose Too Quickly, or Not Increasing When Indicated

Medication adjustments should always be guided by your provider. Moving too fast or staying at a lower dose longer than needed can both undermine results.

How Exceptional Health Personalizes GLP-1 Treatment Plans

GLP-1 therapy is not one size fits all, and neither is the approach at Exceptional Health.

“There is a tremendous amount of information, and misinformation, out there about these medications,” says Julie. “Our goal is to cut through the noise and build a plan that is safe, effective, and realistic for each patient.”

Through close, ongoing relationships between providers and patients, care is tailored to each person’s medical history, health goals, lifestyle habits, and personal preferences. This individualized approach is what allows for treatment that is not only effective but well-tolerated over the long term.

Supporting Long-Term Success

GLP-1 medications can be a valuable tool, but long-term success requires more than a prescription. Nutrition, exercise, hydration, and ongoing communication with your care team all contribute to achieving and maintaining results. By combining those healthy habits with personalized medical guidance, patients can build a foundation for lasting health and wellness.

Contributor

Julie Coffey ANP-C

Nurse Practitioner

Diet & Exercise While Taking a GLP-1: How to Support Long-Term Success