Why 'Calories In, Calories Out' Isn't the Whole Story of Weight Loss

For years we were told weight loss came down to one simple sum, calories in and calories out. Eat less, move more, and the pounds would fall away. If it were that simple, we would all be walking around at the weight we wanted. The truth is far more nuanced.

Is calories in, calories out true?

Up to a point, yes. To lose body fat you do need to take in a little less than you burn. However, your body is not a bank account. What you eat, how you sleep, how stressed you are, your genetics, your time of life, how much you move and your gut health all change what happens to those calories once they are eaten. Two people can eat the same meal, and their bodies will do different things with it. That is why counting alone leaves so many people confused when they stay the same weight, or even gain.

Why your body fights back

Cut your intake too drastically and your body reads that sudden drop as famine. It has no idea you are trying to fit into a bikini by August. As far as it is concerned, food has become scarce and its job is to keep you alive.

So it fights back. It slows your metabolism down, increases your hunger, and holds on to fat for dear life. This is why extreme diets tend to backfire. You lose pounds fast at first, the body panics, and it starts working against you. A gentler approach, eating around 300 calories less a day, tends to work far better, because it slips under the body's radar and does not set off the alarm.

Your set point: the weight your body defends

Each of us has a set point, a weight your body feels settled at and works to defend. This is why you can lose a stone, feel wonderful, then watch the scales creep back to where they started. Your body is doing just what it was built to do, which is head back to familiar, safe ground.

The good news is that a set point can move. If you reach a new weight and hold it there for twelve to eighteen months, your body has a real chance of settling there for good. This is why I aim for slow, sustainable weight loss and changes you can keep to, not fast results that never last.

Why am I not losing weight?

Effective weight loss plans look at your gut health, hormones, genes, food intolerances, sleep and stress levels. When someone tells me they are doing everything right and nothing is shifting, one of these is almost always part of the story. That is why we need to look at the root cause, and why a meal plan on its own is rarely the answer.

How I work with clients

A body that feels well fed is a body that feels safe enough to let some weight go. Effective weight loss is about abundance, not restriction.

• Protein at every meal, to balance your blood sugar, keep you feeling full, support your mental health and help your body stay strong.

• Healthy fats, to support your brain, help make your hormones and neurotransmitters, and keep you feeling satisfied.

• Fibre, with plenty of variety, to keep your gut happy and help you feel fuller for longer.

• Slow-release carbohydrates, to support your thyroid and keep your energy and mood steady through the day.

  
  

I want your meals to be tasty. There is no boring food allowed on my watch, and there is always room for a few treats. A plan you dread is a plan you drop.

The alcohol question

Alcohol slows weight loss, disturbs your sleep, and keeps your liver busy throughout the night when it could be helping you lose weight. It also chips away at your resolve, so you reach for things you never meant to eat. You are free to enjoy a couple of glasses, but it will slow your progress.

Move in a way you can keep up

You cannot outrun a poor diet, but the right sort of movement makes a real difference. It lowers stress, supports your mood and improves your sleep. Aim for around ten thousand steps a day, and add in resistance work two or three times a week, since muscle keeps your body burning calories even at rest.

The things that get in the way

Sometimes what holds you back is not your plate at all. Ongoing stress keeps your body holding on to weight. Niggling intolerances keep low-level inflammation ticking away. Poor sleep leaves you hungrier and less able to make good choices the next day. These are the pieces the calorie sum doesn’t account for, and they are often where the real progress hides.

Ready to work with your body, not against it

If you have counted every calorie and still feel stuck, book a free 20-minute call and let's have a proper chat about what might be getting in your way.

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