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This isn’t a short one…. But this feels like it needs a deep dive.
I’ve done my fair share of scrolling through Google. I’ve read the blogs. I’ve checked in with other fitness professionals. And honestly? At surface level, these weight loss (not fat loss) injections seem to be the thing right now.
And I get why.
If you're reading this, chances are you’ve already ticked off a few of the magic pills over the years: juice cleanses, Slimming World or Weight Watchers, low-carb or keto, back-to-back HIIT workouts, intermittent fasting. And if you’re still back where you started or didn’t see the progress you hoped for, it makes complete sense that something medically backed, prescribed by your GP, and promising rapid weight loss would feel like a lifeline.
Over the next few minutes, I want to share everything I know. What the research says, what we’re seeing in the gym, and most importantly, what I believe right now. And yes, those beliefs might change. But here’s where I stand today.
Is being a “healthy” weight better than being overweight? Probably. But if you're getting there by losing muscle, the organ of longevity, I don’t think that’s a win.
Let me say that again:
Do you really want to actively chase losing the one thing that helps you live longer, stay stronger, and feel more capable?
At Function Fitness, we talk about this a lot. We use InBody scans to help our members understand what their weight is made of. And what we’re seeing more often lately is people who technically fall into a “healthy” weight range on paper, but still have dangerously low muscle mass and high visceral fat. We call it what it is: skinny fat. And from a health risk perspective, it’s not far off from being obese.
That’s the problem with fast fixes.
They don’t teach you anything.
They don’t build habits.
They don’t show you how to train, how to fuel your body, or how to actually take care of yourself in a way that lasts.
They shrink you. But they don’t strengthen you.
I’m not trying to judge anyone who’s considering injections. If you’re carrying more weight than you’d like, and you’re exhausted from trying things that didn’t work, I truly get it. This stuff can feel emotional. It’s frustrating. And it’s easy to buy into the idea that a weekly injection might finally be the thing that helps.
But I can’t shake the feeling that big pharma knows exactly what they’re doing.
They’re playing on insecurity, on exhaustion, and on the idea that you’ve failed.
When really, you just haven’t had the right support.
What worries me most is this:
Like every other diet trend, once you stop the meds, the weight comes back.
But now, it’s coming back on a body that’s lost even more muscle.
That means if you regain that weight, you’ve not only gone backwards — you’re starting from a weaker, more tired place than before.
That’s the trade. And you deserve to know it.
I’m not against these injections. In some cases, particularly for people who are clinically obese or have serious metabolic health issues, they might be a useful tool. But they are not the solution. They’re not a replacement for training. They’re not a substitute for strength. And they will never teach you how to take care of yourself in a way that lasts.
If you’re considering fat loss injections, do it with your eyes wide open.
Know the risks.
Know what you’re likely to lose and what you’re not likely to gain.
And if you want real, long-term change, start with movement.
Start with food.
Start with coaching.
Start with support.
Start by building a body that doesn’t just weigh less but one that does more.
Part Two Coming Soon: What the Research Really Says & Why the Way You Lose Weight Matters Just As Much As the Result.
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