The real ‘cure-all’ for weight control? Commitment

Hey there, time traveller!
This article was published 28/03/2026 (222 days ago), so information in it may no longer be current.

Let this sink in — $108,000.

That’s what GLP-1 drugs like Wegovy could cost you over 25-30 years. If you’re prescribed Ozempic “off label” for weight loss (same drug, just for diabetic treatment) it will cost you less.

But let’s do the math: Wegovy runs roughly $400-$570 per month in Canada. No provincial drug plan covers it for weight loss. Multiply that out over a few decades, and you’re looking at well over $100,000, out of pocket, over the course of your life.

I’m not anti-medication. GLP-1 drugs are genuinely impressive, and I coach people who use them effectively. But “impressive” and “magic injection” are two very different things. Before you or someone you care about commits to a drug for life, you deserve to understand what the research actually says.

Because after about six to 12 months, three problems tend to show up.

Problem No. 1

Here’s a stat that doesn’t get nearly enough airtime.

When people lose weight on GLP-1s without intentional training and adequate protein, studies show that somewhere between 25 and 40 per cent of weight lost comes from lean mass, not fat.

Picture this: you lose 40 pounds. You feel great. But 10-16 of those pounds were muscle.

Now your metabolism is slower. You’re weaker. Your bone density is likely much lower. You look “smaller but softer.” And you didn’t even realize it was happening, because the scale kept going down.

Research also found that being older or female, or eating less protein, was linked to greater muscle loss on the GLP-1 semaglutide or tirzepatide. And losing more muscle was tied to less improvement in blood-sugar control.

The fix isn’t complicated. It’s protein and resistance training. But GLP-1s can crush your appetite so hard that eating enough protein feels impossible. Add in low energy from under-eating, and the gym becomes the last place you want to be.

When patients prioritized resistance training three to five days a week and hit adequate protein targets while on semaglutide or tirzepatide, some were able to minimize lean-mass loss or even add muscle during treatment.

Problem No. 2

GLP-1s work, in part, by suppressing appetite. Significantly.

For some people, that sounds like a dream. In practice, it looks like this: coffee in the morning, yogurt at lunch, a small dinner. Maybe 800 calories total, because they’re no longer getting their natural hunger cues, let alone the food noise. Those are two different things — hunger exists to keep you fuelling properly, food noise involves the cravings to snack. It doesn’t selectively silence food noise alone, and therein lies the rub.

Short-term, the scale number drops. But the body is resourceful. Under-fuel it long enough and it starts slowing everything down: your metabolism, your energy and eventually your results. Most people hit a plateau well before they’re happy with where they are.

The better approach, supported by decades of research, isn’t starvation. It’s a moderate deficit with a focus on the quality of nutrition, not just quantity. Something like a gram of protein per pound of lean body mass daily, consistent strength training and daily steps. Boring? A little. Effective? Absolutely.

A GLP-1 can help create that calorie deficit. But it can’t build the habits that make the results last, nor teach you how to do it right.

Problem No. 3

For people stopping semaglutide or tirzepatide, the average amount of weight regained in the first year was 21.83 pounds, and participants were projected to return to their baseline weight within about 18 months of stopping.

Why does this happen? Because the drug removed hunger. It never built a system that manages hunger without the drug. So, you’ll need to take it forever unless you use it as a tool to support an overall plan.

Now, to be fair, the picture isn’t entirely bleak. In a study of nearly 189,000 patients, about 55 per cent of people who stopped GLP-1s maintained or even extended their weight loss for two years.

Clinical trials tend to show sharper rebounds than real-world outcomes, partly because trial participants lose more weight during treatment, so there’s more to gain back.

But the key variable in all of it? Whether someone had built a system while on the drug.

If they learned how to structure meals, train consistently, manage weekends and think of themselves as someone who lives this way all the way, results are more likely to stick. The same rules that apply to any effort to lose weight. If the drug was doing all of the work and none of those habits were built, when you stop taking it, body weight drifts right back to where it was before.

So what’s the alternative?

There isn’t a secret. There’s just a system. Five things, done consistently, held together by accountability:

● Eat the right amount. Not starvation, not guesswork. CAP control — your calories and protein targets dialed in for your body and your life. Sometimes you’re in a deficit, but most of the time you’re in maintenance.

● Drink water. Three litres a day. Simple and wildly underrated.

● Sleep seven to eight hours. You cannot out-train, out-eat or out-inject a chronic sleep deficit. It touches everything: hunger, muscle preservation and recovery, willpower.

● Lift weights. A few times a week. This is non-negotiable if you want to keep the weight off and actually look like you lost fat.

● Move daily. Eight thousand steps is the target. Not more intensity. Just movement. It adds up fast.

That’s it. The Big 5.

Everyone knows they should sleep more and eat better. The hard part is doing it consistently when life gets in the way. That’s where the system breaks down for most people, which is why the missing ingredient isn’t information or injections. It’s accountability; daily coaching that keeps you honest and prevents major slips. A community that keeps you sane and supported. Challenges that keep it interesting.

A GLP-1 can suppress your appetite. It cannot show up for you. It cannot push you when you’re tired, celebrate you when you’re winning or course-correct you when you’re drifting.

That’s a human job. Maybe AI will replace the humans eventually. But I digress. Build the Big 5 into your life with real support around you, and the drug becomes a tool and eventually an optional one.

Mitch Calvert is a Winnipeg-based fitness coach. Visit mitchcalvert.com for more information.