There is a calorie deficit, but the weight isn’t going down: what to check

15.07.2026

There is a Calorie Deficit, but Weight Isn't Going Down: How to Identify the Reason

You’ve calculated your calorie target, keep a food diary, and try not to exceed your set limit. A week passes, then a second, but the scale doesn’t show the expected results.

In this situation, it’s easy to decide that a calorie deficit doesn’t work, your metabolism has slowed down, or your body has started to “store every calorie.” Usually the problem lies elsewhere.

Your calculated deficit doesn’t always match the actual one. Moreover, reduction in fat mass can be temporarily hidden due to water, intestinal contents, workouts, or hormonal fluctuations.

That’s why the first step when your weight stalls isn’t to cut back even more on food. First, you need to check whether your weight has really plateaued, whether you have a deficit in practice, and if the result is being masked by normal fluid fluctuations.

Below is a step-by-step algorithm that will help you understand the situation without starving or chaotically switching diets.

Weight Isn’t Dropping or Are You Evaluating Results Too Early

Body weight doesn’t decrease in a straight line. Even with the same calorie intake, you could see minus 500 g on the scale today, plus 800 g tomorrow, and then a decrease again in another two days.

Factors influencing the number:

• amount of water consumed;

• salt intake;

• amount of carbohydrates;

• time of last meal;

• bowel contents;

• exercise;

• lack of sleep;

• stress;

• menstrual cycle phase.

Day-to-day changes hardly say anything about body fat.

When Can You Talk About a Weight Plateau

Five or seven days without a decrease aren’t considered a true plateau.

First, assess your trend over at least two weeks. During this time, your diet, activity, and weighing conditions should remain relatively the same.

You can talk about a possible plateau if all three of these conditions are met:

1. Average weight doesn’t decrease for two or three weeks.

2. Waist circumference also doesn’t change.

3. Your diet and physical activity remain roughly the same.

If your waist is shrinking, clothes are looser, or average weight is gradually decreasing, the process is continuing. No need to change your calorie target for now.

How to Correctly Determine Average Weight

Weigh yourself in the morning:

• after using the bathroom;

• before breakfast and water;

• naked or in the same clothes;

• on the same scale;

• on a hard, flat surface.

Record the result every day. At the end of the week, add all seven values and divide the sum by seven.

Example Calculation

Weekly weights:

• Monday: 78.5 kg;

• Tuesday: 78.2 kg;

• Wednesday: 78.8 kg;

• Thursday: 78.4 kg;

• Friday: 78.1 kg;

• Saturday: 78.6 kg;

• Sunday: 78.0 kg.

Total: 548.6 kg.

Average weight:

548.6 ÷ 7 = 78.37 kg.

Repeat the calculation next week. Compare not individual weighings, but two average numbers.

For example:

Even though weight fluctuated several times, the overall trend is down. The deficit is working, so there’s no need to change your diet.

Read more about daily weight fluctuations in the article "Why Weight Fluctuates Every Day and What This Really Means".

Quick Diagnosis: What’s Happening with You?

Find the situation in the table that most closely matches your own.

Now let’s review each step in detail.

Step 1. Check If Your Calorie Target Was Calculated Correctly

Calorie calculators and formulas provide a starting estimate, not a precise measurement of your metabolism.

The formula takes into account:

• gender;

• age;

• height;

• body weight;

• estimated activity level.

But it doesn’t know how much you actually walk, sit, train, and move during the day.

Suppose the calculation gave you:

• maintenance calories: 2100 kcal;

• weight loss calories: 1700 kcal;

• intended deficit: 400 kcal.

If your real energy expenditure is 1850 kcal, your actual deficit will be only 150 kcal. A few untracked foods can completely eliminate this deficit.

This doesn’t mean the formula is useless. It provides a starting point. You need to adjust your target based on your actual weight trends.

A detailed calculation is presented in the article "Calorie Target for Weight Loss: How to Calculate Using the Mifflin-St Jeor Formula".

Step 2. Make Sure Your Food Diary Reflects Your Actual Diet

The phrase “I eat 1500 kcal” can mean two different things:

• all foods are weighed and instantly recorded;

• main dishes are recorded, but small extras are guessed or forgotten.

In the second case, actual calorie intake may significantly differ from the diary.

What Most Often Goes Untracked

Check if you record:

• plant and butter;

• sauces and dressings;

• milk or cream in coffee;

• sugar, syrups, and honey;

• sweet beverages;

• alcohol;

• nuts and seeds;

• cheese;

• food during cooking;

• leftovers from your child’s plate;

• small candies and cookies;

• sampling bites in the store;

• a few spoonfuls of a finished dish;

• snacks at work.

One unrecorded extra doesn’t always matter. But if these small things are repeated daily, they can erase your entire calculated deficit.

Example of Hidden Calories in a Day

Someone may record 1600 kcal, but actually get around 2100 kcal.

To check, you don’t have to weigh every crumb for life. A precise audit for 10–14 days is enough.

Step 3. Weigh Foods Instead of Estimating Portion Size by Eye

Portion size errors are especially significant for calorie-dense foods:

• oils;

• nuts;

• cheese;

• chocolate;

• dried fruit;

• bread;

• grains;

• pasta;

• sauces;

• pastries.

For instance, a “handful” of nuts might weigh not 20 g but 40 g. The difference is about 120–140 kcal.

The same thing happens with grains. 150 g and 250 g of oatmeal in a bowl might look nearly identical, especially in a deep dish.

During the diagnostic period, use kitchen scales. Weigh food before you put it in your plate or add it to a dish.

Detailed tracking rules are collected in the article "How to Count Calories Correctly: Scales, Portions, Oil, and Drinks".

Step 4. Don’t Confuse Raw and Cooked Foods

This is one of the biggest mistakes when counting.

The calories in 100 g of dry rice and 100 g of cooked rice are different, because during cooking, the product absorbs water.

Suppose you use 100 g of raw buckwheat. After cooking, you end up with 300 g of porridge. The total calories barely change, but the weight increases due to water.

If you select 100 g of cooked buckwheat in the diary instead of 100 g of raw, the calorie count will be understated several times.

Use one of two methods.

Method 1. Counting Raw Foods

Weigh grains or pasta before cooking and select “raw product” in your diary.

Method 2. Counting the Final Dish

Record the calories for all ingredients, cook the dish, and weigh it in total. Then calculate calories per 100 g of the cooked product.

For example:

• total calories of ingredients: 900 kcal;

• finished dish weight: 1200 g;

• calories per 100 g: 75 kcal.

Formula:

900 ÷ 1200 × 100 = 75 kcal.

In SIT30 you can create your own dish, specify ingredients and total weight. After that, just record the weight of your portion to your diary.

Step 5. Evaluate the Whole Week, Not Just One Day

For weight loss, energy balance over a long period matters. Five days of deficit can easily be offset by two higher-calorie days.

Example

Monday to Friday, you have a daily deficit of 300 kcal:

300 × 5 = 1500 kcal.

Saturday and Sunday, your calories are above normal:

• Saturday: plus 800 kcal;

• Sunday: plus 700 kcal.

Total for the week:

1500 - 800 - 700 = 0 kcal.

On weekdays you really maintained a deficit, but there was no deficit for the week.

How to Calculate Average Calorie Intake

Add up your calories for all seven days and divide the sum by seven.

For example:

Average calorie intake:

13,000 ÷ 7 = 1857 kcal.

Although the diary showed about 1600 kcal on most days, the real weekly average was much higher.

You don’t have to avoid cafes, takeout, or family dinners. Just include them in your weekly plan, rather than treating “off” days as if they “don’t count.”

Step 6. Check the Calories of Ready Meals and Database Foods

Product databases may have different versions of the same dish.

For example, the calories in cheesecakes depend on:

• cottage cheese fat content;

• amount of flour;

• amount of sugar;

• oil for frying;

• portion size;

• presence of sour cream or sauce.

Someone else’s entry “cheesecakes, 160 kcal per 100 g” might not match your recipe, which actually contains 230 kcal.

The same applies to:

• pilaf;

• meatballs;

• salads;

• soups;

• casseroles;

• pizza;

• pastries;

• cafe/restaurant dishes.

For homemade dishes, it’s best to calculate your recipe once. For restaurant food, use the average estimate and don’t pick the lowest database value just because it fits your daily limit better.

Step 7. Don’t Count Exercise Calories Twice

Sometimes, your activity level is already factored in when calculating your calorie target, but after a workout, you also increase your food limit by the number of calories shown on your watch.

This results in “double counting.”

For example:

1. You select a high activity level in your calculation.

2. Your target already includes regular workouts.

3. Your watch shows a 500 kcal burn.

4. You add these 500 kcal back into your diet.

Moreover, fitness trackers and exercise machines only provide approximate estimates of energy expenditure. Their readings are useful for comparing activity between days but shouldn't be taken as exact permission to eat that number of calories.

While checking, stick to your set limit and don’t add back all the calories your device says you burned.

Step 8. Compare Your Current Activity to Before

After cutting your calorie intake, you may unconsciously start moving less:

• sitting more often;

• going out less;

• doing fewer household chores;

• using the elevator instead of stairs;

• needing longer to recover after workouts;

• taking fewer walks;

• moving more slowly.

Workouts may stay the same, so it seems your energy expenditure hasn’t changed.

In reality, a couple of workouts a week don’t always make up for a decrease in day-to-day activity.

What to Check

Check your average step count over the last four weeks.

Suppose:

• previously: 9,000 steps per day;

• now: 5,500 steps;

• workouts are unchanged.

This drop can noticeably reduce your overall energy expenditure.

No need to immediately aim for 15,000 or 20,000 steps. Add 1,500–2,500 to your current average and reassess in two weeks.

Practical guidelines are in the article "Walking for Weight Loss: How Many Steps Per Day Do You Need?".

Step 9. Recalculate Your Target After Weight Loss

The less your body mass, the less energy your body usually needs:

• to maintain basic functions;

• for walking;

• for climbing stairs;

• for workouts;

• for household chores.

A diet that created a good deficit at 90 kg may become almost maintenance at 78 kg.

Recalculate if:

• you’ve lost 5–7 kg;

• it’s been several months since the last calculation;

• your activity level has changed significantly;

• weight and waist haven’t changed in three weeks.

This doesn’t mean you have to reduce intake after every lost kilo. Recalculation is just a reality check.

Step 10. Rule Out Temporary Water Retention

The scale measures total body mass, not just fat.

Your weight can rise temporarily due to:

• salty foods;

• increased carbs;

• alcohol;

• unusual workouts;

• lack of sleep;

• stress;

• heat;

• constipation;

• late dinner;

• long trips;

• menstrual cycle.

After Salty Food

Dinner with salty fish, sauces, sausages, or restaurant food can bump your weight up the next morning. This doesn’t mean you gained that much fat overnight.

After Eating More Carbohydrates

Carb stores in the body are linked to water. After several days of eating more bread, grains, pasta, or sweets, weight can temporarily rise.

After a Workout

New exercise just causes recovery processes in the muscles. The body temporarily holds more water, which is why weight sometimes stays the same or even rises after starting workouts.

Before Menstruation

Many women’s body weight changes with cycle phase. So, it’s more correct to compare premenstrual readings to the same time the previous cycle, not to the weight immediately after period ends.

If calories are steady, don’t try to “flush out water” by fasting, cutting carbs, or using diuretics. Usually, just get back to your regular routine and check your average weight in a few days.

How to Distinguish Water Retention from Lack of Deficit

You can’t identify the cause by just one sign. Assess weight, waist, nutrition, and activity all together.

What to Do If Weight and Waist Really Don’t Change

If you’ve tracked for 14 days and see no progress, choose only one change.

Option 1. Slightly Reduce Calories

Reduce average calorie intake by about 5–10%.

For example:

• was 1800 kcal;

• new target: 1650–1700 kcal.

No need to drop a whole meal. Usually enough to:

• use less oil;

• adjust garnish portions;

• switch to a lower-calorie sauce;

• cut out extra drinks;

• reduce nuts or cheese.

Option 2. Add Everyday Activity

Keep your food the same and add:

• 1,500–2,500 steps per day;

• a walk after dinner;

• a few short movement breaks;

• walks instead of some short rides.

Compare your average weight and waist in another two weeks.

Why You Shouldn’t Change Everything at Once

If you cut food by 400 kcal, add daily workouts, and instantly double your steps, it will be hard to know which change was crucial.

Also, an overly strict plan often leads to tiredness, extreme hunger, and later overeating.

14-Day Calorie Deficit Audit Plan

Use this algorithm if you’re sure you have a calorie deficit, but your weight isn’t dropping.

Every Day

1. Weigh yourself in the morning, same conditions.

2. Record all food immediately after eating.

3. Weigh foods with kitchen scales.

4. Track oil, sauces, drinks, small snacks.

5. Record your step count.

6. Don’t automatically add workout calories to your food plan.

7. Try to keep salt and carb amounts steady.

Once a Week

1. Calculate average weight.

2. Measure waist circumference.

3. Calculate average calorie intake.

4. Check average steps.

5. Note workouts, lack of sleep, trips, and cycle phase.

After 14 Days

Why 1200 Calories May Not Give the Expected Result

Sometimes someone insists they eat 1200 kcal and don’t lose weight. This isn’t a reason to call them a liar—there could be different explanations:

• 1200 kcal is only kept for a few days;

• weekends aren’t included in the calculation;

• some foods aren’t tracked;

• portions estimated visually;

• oils and drinks are left out;

• calories for dishes are recorded incorrectly;

• weight is steady due to water retention;

• Weight loss continues, but the time frame is too short to see;

• routine activity drops with strong restrictions;

• binge episodes happen, which are uncomfortable to recall.

In addition, 1200 kcal is not suitable for everyone. For a large, tall, or active person, it may be far too strict.

The goal is not to hit a minimum diary number, but to find a calorie intake where weight slowly drops and the plan is sustainable.

Does Sleep and Stress Affect Calorie Deficit

Lack of sleep and stress don’t override energy balance, but they can make it harder to stick to your diet.

After poor sleep, you may:

• feel hungrier;

• choose higher-calorie foods more often;

• increase portion sizes;

• move less;

• skip workouts;

• find it harder to avoid evening snacks.

Stress can also affect eating behavior and cause temporary body weight changes.

That’s why it’s important during an audit to consider not just food, but the circumstances in which you choose it.

Should You Do a Refeed Day

One day of uncontrolled eating won’t rev up your metabolism or guarantee a breakthrough from a plateau.

If weight drops after a refeed, it may be due to fluid, intestinal content, or activity changes—not proof that overeating sped up fat loss.

If the deficit’s been maintained for a long time and it’s psychologically hard, a planned period at maintenance calories is sometimes used.

This shouldn't turn into constant feasts. Its task is to temporarily remove the deficit, keep the usual pattern, and restore your ability to stick to your plan.

Read more in the article "How to Overcome a Plateau Without Cutting Calories: Practical Methods".

When You Should See a Doctor

Weight depends not only on diet. Medications, hormonal changes, and certain diseases can also affect it.

Consult a doctor if, along with stalling or increasing weight, you notice:

• pronounced swelling;

• persistent weakness;

• unusual drowsiness;

• marked feeling cold;

• shortness of breath;

• menstrual cycle issues;

• sudden appetite changes;

• hair loss;

• constipation that wasn’t present before;

• rapid, unexplained weight gain;

• feeling worse after starting a new medication.

You should also seek help if you find yourself being too restrictive with food, experiencing frequent binges, fear of certain foods, or constant guilt about eating.

Don’t stop prescribed medications yourself. Some drugs may affect appetite, water retention, or activity, but the decision to change them is up to your doctor.

Main Takeaway

When a calorie deficit exists only on paper, weight might not drop. When an actual deficit is present, fat loss happens—but it may not always show up immediately on the scale.

So work step by step:

1. Calculate your weekly average weight.

2. Measure waist circumference.

3. Track your nutrition accurately for 14 days.

4. Check oils, drinks, sauces, and snacks.

5. Don’t confuse raw and cooked foods.

6. Compute your weekly average calorie intake.

7. Compare your average steps.

8. Consider workouts, salt, carbs, and cycle phase.

9. Recalculate calorie needs if necessary.

10. Change only one parameter and reassess.

The SIT30 calorie counter helps you keep a food diary, calculate your target, save your own recipes, and track weight trends. The more accurate your diary data, the easier it is to see if you have a real deficit.

More to Read on the SIT30 Blog

• Why Weight Plateaus on a Calorie Deficit: 12 Real Reasons and What to Do

• How to Count Calories Correctly: Scales, Portions, Oil, and Drinks

• Calorie Target for Weight Loss: How to Calculate Using the Mifflin-St Jeor Formula

• Why Weight Fluctuates Every Day and What This Really Means

• How to Overcome a Plateau Without Cutting Calories: Practical Methods

• Walking for Weight Loss: How Many Steps Per Day Do You Need?