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More than one in ten US adults is now taking a GLP-1 medication, which means if you coach anyone, the question isn’t whether GLP-1 clients walk through your door — it’s whether you know what to do when they do. And the coaches who struggle with this aren’t missing nutrition knowledge. They’re misreading readiness.

We covered the foundations in Coaching Clients on GLP-1 Drugs: What You Need to Know — what the medications do, the muscle and bone concerns, the basics of supporting someone on them. This piece goes a layer deeper, into the part that actually determines whether your coaching lands: reading where each client is, and matching your move to their readiness. (If you’re building a coaching practice around client support more broadly, the same skill applies — see our guide to coaching clients with IBS.)

What’s actually happening

The best framing in this space comes from coaches at Precision Nutrition, who’ve coached over 175,000 clients: you’re not in the GLP-1 world, you’re in the GLP-1 support world. Your market isn’t “people on GLP-1s” — it’s “people on GLP-1s who want support.” That distinction matters because readiness isn’t a fixed trait. The client who brushes you off in January may be desperate for help in June, and the one who’s keen today may ghost you next month.

Meanwhile, the physiological stakes are real. On these medications, appetite suppression does the weight-loss work — but it doesn’t discriminate between fat and muscle. Meta-analysis of randomized trials shows incretin therapies produce meaningful lean mass loss alongside fat loss (Eisa et al., Diabetes Obes Metab, 2026 — https://pubmed.ncbi.nlm.nih.gov/41877354/), and researchers warn the strength consequences may run deeper than the scale shows, especially in older adults (Prokopidis, Br J Pharmacol, 2026 — https://pubmed.ncbi.nlm.nih.gov/41577337/). The countermeasure with the strongest evidence is also the one coaches own: resistance training. A review in Diabetes Care concluded resistance exercise is the most promising strategy to optimize body composition changes during incretin-based pharmacotherapy (Locatelli et al., Diabetes Care, 2024 — https://pubmed.ncbi.nlm.nih.gov/38687506/).

And then there’s the ending nobody plans for. When people stop the medication, weight regain is the norm, not the exception — a meta-analysis found most of the lost weight returns within about a year of discontinuation (Kolli et al., Cureus, 2025 — https://pubmed.ncbi.nlm.nih.gov/41116804/), and trajectory analyses of anti-obesity medications show the same rebound pattern (Wu et al., BMC Med, 2025 — https://pubmed.ncbi.nlm.nih.gov/40691794/). Which is exactly why habits matter more, not less, for clients on medication.

Why this is happening to you specifically

If you’re a health or fitness coach feeling squeezed right now, here’s the honest read: the medication does automate the calorie deficit — the thing you used to spend half your sessions managing. What it doesn’t automate is everything around the deficit: protein intake that survives a suppressed appetite, lifting that protects muscle, sleep, the psychology of eating without hunger cues, and the long game after the prescription ends.

So the clients who need you are changing shape. The Precision Nutrition framework describes seven GLP-1 client types, but they cluster into three readiness bands you can actually coach against:

  1. Very low readiness — the Honeymooner. On the drug, loving it, losing weight, changing nothing else. Pushing resistance training on this person right now triggers what Motivational Interviewing calls the “righting reflex” — and it strengthens their defenses. Your move: celebrate genuinely, plant one seed (“if you ever want to work on strength or nutrition, I’d love to”), stay available.
  2. Moderate readiness — the Skeptics, Quitters, and Risk-Aware. They’re quitting the idea, worried about muscle loss, or halfway on. This is your highest-leverage band. They’ll listen to one specific, evidence-backed thing: strategic lifting and protein can make the medication safer, not just more effective.
  3. High readiness — the Under-Fueler and the Graduate. The Under-Fueler is barely eating and needs practical, low-effort nutrition help now. The Graduate has stopped the medication and is terrified of regain — they need habit maintenance framing, not a new diet.

The mistake almost everyone makes is treating “on a GLP-1” as one client type. It’s seven, and the coaching move is different for each.

What you can do today

  1. Ask readiness questions before offering anything. “What feels most urgent right now?” and “Do you have capacity to work on this?” beat any pitch. Someone with urgency plus capacity is coachable; someone with neither needs your patience, not your program.
  2. Make resistance training non-negotiable for every medicated client who’ll hear it. Not as fear-mongering — as the thing that makes the medication work better long-term. We broke down why strength training after 40 is the highest-leverage habit for exactly this population.
  3. Coach protein for appetite, not macros. A suppressed appetite means your client may eat 1,200 calories and none of them protein. Practical moves first: protein at the first meal of the day, protein-forward snacks, liquid protein when solid food feels impossible.
  4. Pre-frame the discontinuation conversation early. If your client ever plans to stop, the habits built during the medication are what hold the line after. Say this in month one, not at the goodbye session.
  5. Stay ruthlessly inside scope. Starting, stopping, or dosing a GLP-1 is a medical decision. You share evidence and ask questions; you never make the call. Our guide to the coach’s scope with GLP-1s covers the boundaries in detail.

What to stop doing

  • Stop leading with danger. “You’ll lose all your muscle” is a terrible opener for a client flying high on results. Fear doesn’t create readiness — it creates avoidance.
  • Stop treating the medication as a shortcut to fix. Clients absorb that judgment instantly, and it poisons the coaching relationship. The moralizing question (“am I weak for taking it?”) is real for many clients; your job is to make room for it, not answer it for them.
  • Stop selling a weight-loss outcome to someone whose medication already produces one. Sell strength, energy, resilience, and a plan for after. The clients who stay are the ones buying something the syringe doesn’t deliver.
  • Stop winging the regain conversation. The evidence on post-discontinuation regain is strong enough that “we’ll cross that bridge later” is malpractice-adjacent. Frame maintenance habits from day one.

The supplement / product question

For under-fueled GLP-1 clients, a few products solve real, specific problems — no magic, just delivery.

GLP-1 Protein Powder (10g whey, vanilla) — a small-serving protein designed for suppressed appetites. When a full shake feels impossible, a 10-gram serving that goes down easy is the difference between 60 and 90 grams of daily protein.

Creatine Monohydrate Powder — the cheapest, best-studied support for preserving strength and lean mass in a deficit, and it pairs directly with the resistance training recommendation. We covered the specifics of creatine for women over 35 if you want the mechanism.

One caution: the “GLP-1 support” supplement shelf is now full of fiber-blend products with loose claims. Check ingredients before recommending anything to a medicated client — and remember supplements are the third lever, behind lifting and protein, never the first.

What we still don’t know

Here’s the question the coaching industry hasn’t answered: does coaching actually change the regain curve after GLP-1 discontinuation? The pharmacology data is solid — we know weight returns. But there’s no long-term trial yet showing that habit-based support during medication changes what happens after it stops. Every coach working with GLP-1 clients is operating on strong mechanism and thin outcome data. The practices that figure out how to measure their own clients’ post-medication trajectories — and publish or share those numbers — will own the next five years of this space. Until then, humility is part of the skill set.

Save this for your next discovery call with a GLP-1 client — or send it to a coach who’s still treating every medicated client the same.