12/05/2026 - Gosia
Weight loss has become very overcomplicated lately. People are panicking about carbs, insulin, seed oils, fasting windows and every new online rule someone invented to sound clever. For straightforward fat loss, most of this noise is unnecessary. Overall nutrition is more nuanced, of course, but today we are keeping it simple.
A calorie deficit is still the underlying requirement for fat loss. If the goal is to lose body fat, there needs to be a gap between how much energy your body uses and how much energy you take in. This is why completely different diets can lead to the same outcome. Low carb, low fat, intermittent fasting, calorie tracking, portion control - if they result in fat loss, they work because they help create an energy deficit.
The gym helps, but let’s not pretend it can outrun chronic overeating. Exercise is excellent for health, fitness, mood, insulin sensitivity, strength and muscle retention, but a few sessions a week will not cancel out eating for a family of four every evening.
Many people overestimate how much they burn and underestimate how much they eat. They often only realise it after honest tracking, because seeing the numbers can be very eye opening. Food quality still matters, even though the deficit is the driver. A calorie deficit built around minimally processed foods, enough protein and enough fibre is usually easier to maintain than one built around random snacks, liquid calories and ultra-processed foods. Higher protein intake during weight loss can also help reduce muscle loss, especially when combined with resistance training. That matters if the goal is not just to weigh less, but to look and feel better too.
A lot of people say they are “in a calorie deficit” but not losing weight. Sometimes that can appear true for a short period because body weight fluctuates. Water retention, menstrual cycle changes, stress, sodium, constipation and changes in training can all temporarily mask fat loss. This is why weekly weight averages are more useful than obsessing over one random weigh in.
Very often portions are being underestimated. Weekends are wiping out the deficit created during the week. Liquid calories and alcohol are being ignored. Snacks, sauces, bites and “just a little bit” extras are not being counted.
And that brings us to expectations. Real progress is usually slower than people expect. NHS guidance still points to roughly 0.5 to 1 kg per week as a safe and achievable rate for many people, not the fantasy numbers thrown around online to sell desperation.
I know that does not sound very exciting, but at least it is honest. People keep looking for quick, almost magical fixes, when the truth is that boring methods usually work best.
Estimate your calorie needs. Create a realistic deficit. Start with a modest reduction, even around 10% if you are new to this. Keep protein and fibre high, manage portions, watch liquid calories, and stop letting weekends quietly erase the progress you made from Monday to Friday.