Why 'Eating Less' Isn’t Always the Answer in Midlife

There’s something we all see happening a lot with women in midlife, and if I’m honest, it doesn’t surprise me in the slightest.

Most of us have spent decades being told the same thing over and over again: if you want to lose weight, you simply need to eat less. The theory of 'calories in vs calories out'.

Eat smaller portions.
Skip a meal here and there.
Ignore hunger.
Be 'good' and eat 'clean'.

So when something like a GLP-1 medication comes along and suddenly your appetite drops, it can feel like the universe has finally thrown you a bone.

You’re not thinking about food all the time.
You’re getting full much faster.
You might even find yourself leaving food on the plate.

And somewhere in the back of your mind a little voice pops up and says, “Well, this is handy.” And you quietly celebrate your 'win'.

Because if you’re not hungry, surely eating less must be the fastest way to lose weight, right?

That would certainly line up nicely with everything diet culture has taught us.

But here’s where things get a little more complicated.

Your body doesn’t see “eating less” the same way we do.

Your body sees it through a completely different lens.

Your Body Is Not a Calculator

For years we’ve been told that fat loss is simply a calorie calculation (eat less than we are burning), as if our bodies are neat little mathematical equations that behave predictably if we just adjust the numbers.

But the human body is not a calculator.

It’s a living system with hormones, cells, and biological processes that are constantly responding to the environment around them — including how well we’re nourished.

When your body senses that energy is coming in regularly and that it’s being properly fuelled, it can run all of those systems beautifully.

But when it senses that food is scarce — which can happen quite easily if you’re dieting hard or eating very little — it starts making adjustments. And not necessarily the ones we’d like.

Things like metabolism, hormone production, thyroid function and even the immune system can all start to dial down slightly, because it’s trying to conserve energy.

It’s a survival response, and it’s been part of human biology for a very long time.

The GLP-1 Piece That’s Easy to Miss

Now this becomes particularly important for women using GLP-1 medications.

These medications can be incredibly helpful. For many women they quiet that constant background noise around food and appetite, which can be life-changing.

But they also come with something that doesn’t always get talked about enough.

Because appetite drops so much, it becomes very easy to eat far less than your body actually needs.

Sometimes that’s because nausea makes food unappealing.

Sometimes it’s simply because you’re not thinking about food very much.

And sometimes — if we’re being honest — it’s because the old dieting mindset quietly creeps in and says, “Well this is perfect. Let’s just eat even less.”

I’ve seen women almost celebrating the fact that they forgot to eat lunch.

You can almost picture the little victory dance happening in the kitchen.

But when the body isn’t properly fuelled, it doesn’t magically become a more efficient fat-burning machine.

What it actually does is become a little more protective.

Energy levels can dip.
Hormones can become a bit grumpy.
Muscle becomes harder to maintain.

And that’s where things can really start to go off track.

Midlife Is When Muscle Matters Most

One of the biggest priorities for women in midlife is protecting muscle - you hear me banging on about this all the time - for good reason.

Muscle supports your metabolism, keeps your bones strong, and helps you stay mobile and independent as you age.

But as we get older, our muscles become a little less responsive to both protein intake and resistance training. In other words, they don’t bounce back quite as easily as they used to.

This means we actually need more attention on protein and strength training, not less.

If food intake drops too low, protein intake usually drops with it, and that can make it much harder to maintain muscle while losing weight.

And losing muscle is not something we want to encourage.

Because while the scale might go down quickly, metabolism can slow and long-term weight management becomes even harder.

Why the Scale Can Be So Misleading

Another thing that confuses a lot of women in midlife is the scale.

We’ve been taught for years that the number on the scale is the ultimate measure of progress. But the scale can’t tell the difference between fat loss and muscle loss.

It just shows a number.

What we’re really aiming for in midlife is something called body recomposition, which simply means losing body fat while maintaining or even building muscle. When that happens, something quite interesting often occurs.

The scale might move very slowly.

Sometimes it barely moves at all.

But clothes start fitting differently.

You feel stronger in your workouts. You're sleeping better. You're not feeling so bloated.

Your body shape changes.

And suddenly the scale doesn’t seem nearly as important as it once did.

Quality of Food Still Matters

There’s also another piece of the puzzle that often gets overlooked, and that’s the quality of the food we’re eating.

Calories are part of the story, but they’re not the whole story.

Your body responds very differently to ultra-processed foods compared to real, whole foods that contain fibre, vitamins, minerals and all the other nutrients your body relies on.

Think of it like putting fuel into a car.

You could technically fill a high-performance car with low-grade fuel and it would still run. But it wouldn’t run particularly well, and over time you’d probably start seeing problems.

Your body works in a similar way.

The type of fuel you give it matters.

Surviving Isn’t Really the Goal

Another interesting thing to know is that many of the official nutrition recommendations we hear about were originally designed simply to prevent deficiency during times of war.

In other words, the minimum required to keep people alive.

But if you’re anything like me, simply being alive isn’t really the goal.

I’m aiming for thriving.

I want energy.
Strength.
Independence later in life.

I want to do everything I can to avoid spending half my week sitting in doctors’ waiting rooms as I get older.

And that means nourishing my body properly now.

A Better Question to Ask

So if you’re in midlife — and especially if you’re using GLP-1 medications — it might be time to gently shift the question you’re asking yourself.

Instead of wondering how little you can get away with eating, try asking something slightly different. Am I nourishing my body well enough to support my health, my energy and my strength?

Because when the body feels supported rather than starved, amazing things can start to happen.

And yes, that can include fat loss too.

XO Jane