How many calories should you eat per day to lose weight?

One of the most frequently asked questions about weight loss is: how many calories should you eat per day to lose weight? Many people look for a single, universal number that will allow you to quickly lose weight. In reality, the answer isn't so simple.

Calorie requirements depend on many factors, such as age, weight, height, physical activity level, and health status. Therefore, two people of similar weight may need completely different amounts of calories to lose weight.

In this article, we'll explain how to calculate how many calories you should eat per day to lose weight, what a calorie deficit is, and what mistakes most often hinder effective and healthy weight loss.

What is a calorie deficit?

To understand how many calories to eat per day to lose weight, you must first understand the basic principle of weight loss.

Weight loss occurs when the body burns more energy than it takes in from food. This state is called a calorie deficit.

This can be achieved in two ways:

Reduce calorie intake

Increase physical activity

It's best to combine both approaches.

If the body is in an energy deficit, it begins to use stored energy, primarily from fat tissue.

How many calories are in one kilogram of fat?

It is estimated that:

1 kg of fat tissue is approximately 7,000–7,700 kcal

This means that to lose 1 kg, you need to create an energy deficit of this size.

For example:

500 kcal deficit per day

About 3,500 kcal per week

In practice, this can mean a weight loss of about 0.5 kg per week, which is a healthy rate of weight loss.

How many calories should you eat per day to lose weight?

There is no single calorie number that is right for everyone. However, some approximate ranges can be provided.

For example:

women

reduction: approximately 1400–1900 kcal per day

men

reduction: approximately 1800–2400 kcal per day

However, these are very general values. The exact number of calories depends on individual needs.

Therefore, the best solution is to calculate your own energy needs.

How to calculate your calorie needs

Calorie needs consist of several components.

The most important of these are:

BMR – Basal Metabolic Rate

CPM – Total Metabolic Rate

BMR – Basal Metabolic Rate

BMR is the amount of energy the body uses for basic life functions, such as:

breathing

heartbeat

brain function

maintaining body temperature

Even if we were to lie in bed all day, the body would still burn calories.

CPM – Total Metabolic Rate

CPM is the total daily caloric requirement, which takes into account:

physical activity

work

movements during the day

training

It is from CPM that calories should be subtracted to create an energy deficit.

Sample Calorie Requirement

To better understand how many calories you should eat daily to lose weight, it's worth seeing sample values.

Example 1

Woman:

30 years old

165 cm tall

70 kg body weight

Moderately active

Her needs may be approximately:

2100 kcal per day

To lose weight:

approximately 1600–1800 kcal

Example 2

Man:

35 years old

180 cm tall

90 kg body weight

Moderately active

Her needs may be approximately:

2600–2800 kcal

To lose weight:

2100–2300 kcal

How to determine a safe calorie deficit

The most commonly recommended calorie deficit is:

300–500 kcal per day

Why is this the best solution?

The body still has the energy to function.

Metabolism doesn't slow down dramatically.

It's easier to maintain the diet long-term.

A too large deficit can lead to:

Slowed metabolism

Loss of muscle mass

Hungry pangs

The yo-yo effect

Does a very low-calorie diet accelerate weight loss?

Many people believe that the fewer calories they eat, the faster they will lose weight. In practice, this approach often has the opposite effect.

Very low-calorie diets can cause:

Low energy

Hormonal imbalances

Concentration problems

Loss of muscle instead of fat

Furthermore, restrictive diets are difficult to maintain and often result in the yo-yo effect.

Therefore, a moderate calorie deficit and a balanced diet are a much better solution.

How to control calories in practice

To lose weight effectively, it's worth implementing a few simple strategies.

1. Increase protein in your diet

Protein:

increases satiety

helps maintain muscle mass

supports metabolism

Good sources of protein include:

eggs

fish

lean meat

dairy

legumes

2. Eat more vegetables

Vegetables are:

low in calories

high in fiber

high in volume

This helps you feel full faster.

3. Limit highly processed foods

Highly processed foods often contain:

high in calories

low in nutrients

high in sugar and fat

Therefore, it's easy to exceed your daily calorie limit.

4. Plan your meals

Planning a meal helps:

control calories

avoid impulsive eating

maintain a calorie deficit

Common mistakes

When trying to lose weight, many people