The Dark Side of Weight Loss Drugs: Why They Can Trigger Eating Disorders

There is something happening right now in the health and wellness space that is being framed as a breakthrough, a solution, almost a miracle and yet beneath that surface, there is a much more complex and, in many cases, concerning reality that we are not speaking about nearly enough, especially not in the context of mental health and eating disorder development.

Let’s start by understanding what we’re actually talking about.

GLP-1 medications, such as Ozempic, belong to a class of drugs designed to mimic a natural hormone in the body called glucagon-like peptide-1. This hormone plays a role in regulating blood sugar, slowing down how quickly food leaves the stomach, and signaling fullness to the brain. In practice, this means appetite is reduced, food noise often becomes quieter, and people feel satisfied on much smaller amounts of food.

And for many, that can feel like relief.

Eating becomes easier. More controlled. Less overwhelming.

Weight loss follows, not necessarily through conscious restriction, but because the body is consistently taking in less energy.

And this is where we need to pause.

Because an energy deficit, no matter how it is created, is not neutral. It is a biological signal. And the body does not interpret that signal as “weight loss” or “progress.” It interprets it as a potential lack of resources.

In other words, as under-fueling.

Now, GLP-1s are often also described within the broader category of peptides. Peptides are short chains of amino acids that act as signaling molecules in the body — they essentially tell the body to do something. In this case: eat less, feel full faster, regulate blood sugar more efficiently.

So while not all peptides are the same, many of the ones being discussed right now in the context of weight loss work through a similar pathway: they reduce appetite and make it easier to consume less food.

And again, that leads us back to the same place.

Less intake. Less energy. A sustained deficit.

And this is not only happening through medication.

Bariatric procedures, such as a gastric sleeve or gastric bypass, work in a different way — physically reducing the size of the stomach and, in some cases, altering hunger hormones — but the outcome is often similar: you are able to eat significantly less, and over time this can lead to nutritional deficiencies and chronic under-fueling if not carefully managed.

Different method. Same biological reality.

And this is where the conversation needs to widen.

Because when the body is in a prolonged state of undernourishment, especially when hunger cues are suppressed or overridden, it doesn’t just affect weight or metabolism. It affects the brain.

It affects thoughts.

It affects behavior.

For some people, this state can begin to activate something deeper, a genetic or psychological predisposition that may have been dormant until that point.

This is how eating disorders can begin.

Not always suddenly, not always visibly, but gradually.

It can start with eating less because you’re not hungry.

Then feeling good about that.

Then relying on that.

Then feeling uncomfortable eating more.

Then thinking about food more, not less.

Then needing control.

Then losing flexibility.

And before you know it, what looked like “effortless weight loss” begins to feel like something else entirely.

This is also why, in my work, I see not only new eating disorders being triggered, but also old patterns resurfacing, sometimes after years of feeling “recovered” or stable, because the conditions that once maintained those patterns are quietly reintroduced.

Now, I also want to say this clearly.

I know these medications have genuinely helped people and even changed lives, and I’m truly happy for that.

And I’m not here to position myself as an expert on GLP-1s as that’s not my lane.

What I do have deep experience in is what happens on the mental health side, especially how states of restriction can trigger or reinforce a genetic predisposition for an eating disorder.

This is who I’m speaking to here.

The people who feel like something has shifted.

The people who don’t quite feel like themselves around food anymore.

The people who are praised on the outside, but struggling on the inside.

Because this matters.

And it deserves to be taken seriously.

So what do we do?

We start by paying attention.

Not just to weight, but to thoughts, behaviors, and your relationship with food.

We ask:

– Am I still connected to my hunger and fullness?

– Am I eating enough to support my body?

– Are my thoughts around food becoming more rigid or obsessive?

– Do I feel safe eating more if my body needs it?

And if the answer to those questions feels uncomfortable, that’s not something to ignore.

Because recovery, stability, and mental freedom around food do not happen in a prolonged state of deficit.

They happen when the body is nourished, when the brain feels safe, and when flexibility is restored.

And that process — the rewiring, the rebuilding of trust, the return to adequate nourishment — is possible.

If you recognize yourself in this, and this is something you would like support with, you don’t have to navigate it alone.

This is exactly the kind of work I support people through.

You can reach out to me, and we can look at what’s going on for you — gently, honestly, and without judgment.

I’m absolutely there for you.

Xxx, Danie.

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