7 Min Read
Why Am I Not Losing Weight? What Your Food and Hormones Are Really Doing
You’re doing everything right. You’ve cut back on portions, you’re skipping the dessert, you’re saying no to things you actually want. You’re tracking, you’re trying, you’re being careful in ways that nobody around you even notices. And yet the scale hasn’t moved in weeks, maybe it’s even crept up.
It’s exhausting and you’re wondering whether your body is just broken, or whether you simply don’t have enough willpower.
What’s happening to you is real, it’s common, and it has an explanation. More often than not, the problem isn’t how much you’re eating, it’s what you’re eating and what that food is quietly doing to your body every single day without you realising.
Not All Calories Are Created Equal
Most people don’t realise that your body burns calories simply by digesting food. This is called the thermic effect of food. Whole foods have a high thermic effect, taking up to 20 to 30% of their own calories just to be broken down and processed. Processed food barely requires any effort at all, as little as 3%. So simply changing what you eat is already giving your metabolism a head start, before anything else changes.
But the difference goes much deeper than that. Whole foods carry the vitamins and minerals your body needs to burn fat and build muscle while processed food largely empty calories. The number on the label might look the same, but what happens inside your body is completely different.
Calories matter, but food quality is what determines your hormones, your hunger, your inflammation levels, and ultimately your body composition. Eating whole foods gives your body the right tools to burn fat, stay full, and recover well. Processed food, despite filling the same calorie quota, starves your body of what it actually needs to function, and over time, that gap is exactly what keeps the weight stuck.
Why Processed Food Keeps You Stuck
When you eat processed food, it breaks down quickly and floods your bloodstream with sugar almost immediately. Your body responds by releasing a surge of insulin, your primary fat storage hormone, rushing in to deal with all that sugar at once. Do this repeatedly throughout the day and your body starts ignoring insulin’s signals, like a manager whose team has stopped listening. When that happens, more and more gets stored as fat instead of being used as energy.
Whole foods work very differently. They digest slowly, releasing energy gradually, so your body’s fat storage hormone never gets overwhelmed. Insulin stays steady, your energy stays stable, and your body stays in a fat-burning state rather than a fat-storing one.
There’s more to the processed food problem though. Eating it regularly also interferes with leptin, the hormone that tells your brain you’re full. When leptin stops working properly, your brain never quite gets the message that you’ve eaten enough, so you keep feeling hungry even when your body has had plenty. Whole foods support healthy satiety signals, keeping hunger in check naturally. One makes you eat more than you need. The other keeps you satisfied.
On top of that, processed food drives ongoing low-level inflammation throughout the body. That inflammation raises cortisol, your stress hormone, which tells your body to store fat and, over time, actually breaks down muscle too. Whole foods do the opposite. They support a body that can function, recover, and burn energy the way it’s meant to. Trying to lose weight in a chronically inflamed body is like fighting an uphill battle, and the types of food you eat every day will determine how steep that hill is.
Simple Swaps That Actually Work
Start with protein. Lean meats like chicken breast, fish, and turkey are your best allies when fat loss is the goal. They support muscle, keep you full, and because whole foods have that higher thermic effect we mentioned, your body is already working harder just to digest them. If you’re not sure where to begin, simply ask yourself whether each meal has a clear protein source. If it doesn’t, that’s the first thing to fix.
With carbohydrates, it’s less about elimination and more about making smarter swaps. For example, if you’re currently eating two bowls of rice at dinner, try reducing to one and a half and pay close attention to how you feel over the next week or two. Not just whether you’re still hungry, but your energy throughout the day, your mood, your cravings, and your sleep. If you find yourself exhausted by mid-afternoon, reaching for anything sweet, feeling irritable, or waking in the night, your body may be telling you the reduction was too much, too fast. These aren’t signs of weakness. They’re signals worth listening to.
Better still, try swapping white rice for sweet potato a few times a week. White rice is a simple carbohydrate, meaning it’s made of short sugar chains that your body breaks down rapidly, causing a quick spike in blood sugar. Sweet potato, on the other hand, is a complex carbohydrate with longer sugar chains that take more time and effort to digest. It also has a lower glycaemic index than white rice, meaning it raises your blood sugar more gradually, and it’s higher in fibre, which keeps you fuller for longer. Same category of food on the surface, but a completely different effect on your body.
Fibre is another thing worth paying attention to. Most women don’t get nearly enough of it. Found in vegetables, legumes, whole grains and fruits, fibre slows digestion down, which helps keep your blood sugar stable and keeps you feeling full for longer. Combined with adequate protein, the two work together to curb hunger in a way that makes eating less feel far less like a struggle. Good sources include broccoli, spinach, lentils, oats, and of course sweet potato, which is why it earns its place as a swap worth making.
How you cook matters too. Grilling or air-frying salmon instead of pan-frying it in oil gives you all the goodness without the extra calories that come from cooking oil. These aren’t dramatic changes, but they add up more than most people expect.
Protein is powerful, but there’s a catch.
Eating more protein is genuinely helpful, but only when you’re also giving your body a reason to use it. If you’re significantly increasing your protein intake without also moving and training more, the excess doesn’t just disappear. Whatever your body doesn’t need gets stored as fats. Protein is a tool, and like any tool, it only works when you’re actually using it.
A Meal Habit Most Women Overlook
It’s not just what you eat, it’s when and how regularly. Skipping meals or going long stretches without food causes your blood sugar to drop sharply, which triggers cravings, low energy, and usually overeating at the next meal.
This is also worth keeping in mind if you’ve been considering intermittent fasting. While it works well for some people, it can easily backfire if the long fasting window leaves you so hungry that you end up consuming far more than you intended when you do eat. The restriction leads to a rebound, and the rebound undoes the effort. For most women, eating consistently at regular times throughout the day is a far more sustainable approach that keeps hunger and energy much better managed.
Feed Your Output, Not Your Guilt
The principle of energy balance is real: if you consume more than you use, the excess gets stored. But the way most people apply it, by slashing calories dramatically, often backfires. Extreme restriction stresses the body, causes muscle loss, slows your metabolism, and builds a difficult relationship with food that’s hard to come back from.
A far more sustainable approach is to focus on the quality of what goes in and move consistently throughout the day. Aiming for 10,000 steps a day and adding two to three strength training sessions a week will do far more for your body composition than surviving on very little food ever will. The goal is to build a body that uses energy well, not to put one that’s already under stress through even more of it.
Think of it like a car that barely gets driven but keeps getting a full tank of fuel. It doesn’t matter how good the petrol is. If the car isn’t moving, the tank overflows. Your body works the same way. Food is fuel, and fuel needs somewhere to go.
Beyond The Plate
If you’re in perimenopause or menopause, your hormones add another layer on top of it. As oestrogen declines, your body tends to shift fat storage towards the belly and waist. Progesterone fluctuations can cause water retention, which makes the scale unreliable. And your body naturally becomes less efficient at processing carbohydrates, meaning the same meals that felt completely fine a few years ago may now affect your energy and weight differently.
This is why so many women in these stages feel like they’re doing everything right and still not getting results. The fundamentals have not changed, but the way your body responds to food has, and that matters.
The Real Measure of Progress
Stop using the scale as your only measure
The scale cannot tell you what’s actually happening in your body. How your clothes fit, your energy throughout the day, your sleep quality, your strength. These are far more reliable signals that something is working.
Eating for fat loss isn’t about restriction. It’s about choosing foods that work with your body rather than against it, moving consistently, and fuelling yourself in a way you can actually sustain long term. That’s a completely different conversation to simply eating less.
You don’t have to figure this out alone
Knowing what to change is one thing. Knowing how to change it, in a way that fits your actual life, your schedule, your preferences, your body, is where real support makes all the difference.
At Apex, we work exclusively with women, and we understand that fat loss at every stage of life requires a tailored approach. That includes helping you make sense of your blood work, understanding what your hormones are doing, and building a plan around your body’s fluctuations rather than ignoring them. Our trainers come to you, so there’s no commute, no gym anxiety, just focused, expert support designed around where you are right now.
If you’re ready to stop guessing and start seeing real results, we’d love to hear from you.
FREQUENTLY ASKED QUESTIONS
Questions we hear most often.
Why do I keep craving sugar even when I've just eaten?
This is often a sign that your meals are high in processed or simple carbohydrates that digest quickly, causing your blood sugar to spike and then crash. Switching to whole foods, fibre, and protein helps keep blood sugar steadier and reduces cravings naturally.
How much protein should I be eating?
It works for some people, but it can backfire if the fasting window leaves you so hungry that you overeat when you do eat. For most women, eating consistently at regular times throughout the day is a more sustainable approach.A general guideline is around 1.6 to 2 grams of protein per kilogram of body weight if you’re active. But more importantly, focus on having a clear protein source at every meal rather than obsessing over exact numbers.
How do I know if my hormones are affecting my weight?
Signs include unexplained weight gain especially around the belly, persistent cravings, poor sleep, low energy, and mood changes. Getting your blood work done is the most reliable way to understand what your hormones are doing and how to work around them.
I do cardio every day but I'm not losing weight. Why?
Cardio burns calories during the session but doesn’t do much to change your body composition long term. Strength training builds muscle, which raises your resting metabolism, meaning you burn more calories even when you’re not exercising. A combination of both, alongside good nutrition, is far more effective.
Does stress really affect weight gain?
Yes, significantly. Chronic stress raises cortisol, which signals your body to store fat, particularly around the belly. It also disrupts sleep and increases cravings for high sugar, high fat foods. Managing stress is genuinely part of a fat loss plan, not just a nice to have.