Deciding you want a trainer is the easy part. Finding one who's actually qualified — and a fit for someone losing weight on a GLP-1 — takes a little screening. Here's how to do it without guessing.
Start with the credential
Personal training isn't uniformly licensed, so the certification is your first quality filter. Look for a current certification from a recognized, accredited body — NASM, ACE, NSCA, ACSM, or ISSA are among the most established (see our NASM resource for what that credential involves). A legitimate trainer will happily tell you what they hold and keep it current. A certification isn't everything, but its absence is a real warning sign.
Also confirm they carry liability insurance and, ideally, a current CPR/AED certification.
Prioritize relevant experience
A credential says they met a standard; experience says they can apply it to you. On a GLP-1, look for a trainer who understands the situation:
- Muscle preservation during weight loss — they should talk about resistance training and protein, not just "burning calories."
- Working with clients on weight-loss medications — reduced appetite, lower energy, and eating far less change how you should train. Some trainers have specific education here (NASM, for example, offers coursework on GLP-1s and weight-loss medications).
- Beginners and any conditions you have — a trainer used to coaching athletes may not be the right fit if you're starting from zero or working around joint issues.
Where to look
- Ask your care team — a doctor, physical therapist, or dietitian may have referrals.
- Certifying bodies' "find a trainer" directories (e.g., on NASM's or ACE's sites).
- Local gyms — but still vet the individual, not just the gym.
- Online/virtual coaching if in-person is scarce or costly — many good trainers work remotely with video form checks.
- Word of mouth from people whose results and approach you trust.
Questions to ask on a first call
- What certification(s) do you hold, and are they current?
- Have you worked with clients losing weight on GLP-1 medications?
- How do you help clients protect muscle while they're eating less?
- How do you tailor programs for beginners / my specific conditions?
- How do you track progress, and how do sessions and pricing work?
- Are you willing to coordinate with my doctor or dietitian?
A good trainer asks you questions too — about your health history, medications, goals, and any pain or limitations. A thorough intake is a green flag.
Red flags
- No verifiable, current certification.
- Pushes supplements, "detoxes," or extreme very-low-calorie plans — especially risky when a GLP-1 already suppresses your appetite.
- Promises a specific rate of weight loss or dramatic results.
- Dismisses your medication, your doctor, or the idea of coordinating care.
- One-size-fits-all program with no intake or personalization.
Then make it work
Trial a session or two before committing to a package. Notice whether they actually watch and correct your form, whether they adjust for how you feel that day, and whether you'd keep showing up. If it's not a fit, move on — the goal is consistent, safe strength training, and the right trainer makes that easier, not harder.
Still weighing whether a trainer is worth it at all? See the companion guide, Should you get a personal trainer on a GLP-1?
This is general education, not medical advice. Check with your clinician before starting a new exercise program, especially if you have health conditions.