How to lose weight once and for all? And why diets don’t help.

About the problem of excess weight.

The problem of excess weight and obesity is increasing every year. Excess weight is not just an aesthetic issue. Research shows that excess weight is correlated with health disorders such as diabetes and insulin resistance, cardiovascular diseases, cancer, and musculoskeletal system disorders. In addition, due to dissatisfaction with one’s appearance, psychological problems can arise—from insecurity to apathy and depression. The link between life expectancy and body fat percentage has also been proven.

The good news is that almost anyone, except in cases of severe hormonal or behavioral disorders, can bring their body back to normal. Below we will explain in detail how to do this.

What leads to excess weight?

Before starting to fight excess weight, it is necessary to understand its causes.
There are 3 main factors that determine a healthy body constitution:

  • Nutrition
  • Physical activity
  • Hormonal balance

Modern lifestyle negatively affects all these factors simultaneously. Sedentary behavior leads to both low energy expenditure and insufficient production of growth hormone (somatotropin) and endorphins, which are responsible for good mood and appetite regulation.

Processed foods contain a large number of calories, significantly exceeding the body’s needs under low physical activity conditions. Refined sugar causes sharp insulin spikes—the hormone responsible for converting blood glucose into fat deposits. Low levels of essential amino acids, vitamins, minerals, and fiber lead to weakness and apathy. Trans fats and chemical additives negatively impact health.

How to lose 10 kilograms in a week forever?

No way. If you are looking for another miracle diet, this is not the right place. Not because we don’t know the answer, but because such diets don’t exist. If temporary diets capable of producing stable results existed, obese people would be rare—but unfortunately, this is not the reality.

There is no “magic pill” that, taken once, will make you slim forever. But there is another path that leads to stable results: normalizing body weight, reducing body fat percentage, and improving overall health.

Why diets don’t work? And what really works.

Let’s understand why no diet provides lasting results. Because the state of the body always corresponds to the conditions in which it lives. If you are overweight, this is a consequence of poor nutrition, inadequate physical activity, and, as a result, hormonal imbalance. Any diet is a temporary change in the conditions in which the body exists—usually just a temporary change in nutrition. And yes, during the diet, the body begins to adapt to the new conditions. But as soon as the diet ends (or is abandoned halfway), the person returns to their usual lifestyle and diet—and the body quickly returns to its initial state.

The problem is that diets usually drastically reduce nutrient intake. The body interprets this as a period of adverse conditions (famine, war…) and, at the first sign of improvement (after the diet ends), activates the energy storage mechanism. This is an evolutionary mechanism meant to survive periods of scarcity but does not match current reality. As a result, the person not only regains the previous weight but also accumulates extra reserves “just in case of another famine.” Moreover, many diets are unbalanced in certain nutrients, which can harm health.

Therefore, temporary dietary restrictions will never bring permanent results. Instead of a temporary “diet,” it is necessary to permanently change nutrition and lifestyle. Only constant changes lead to stable results. This may seem frightening to some—as if it were necessary to give up all old eating habits forever. But in reality, you do not need to reach the ideal immediately or start running marathons. Small gradual changes in diet will be enough to see the first visible improvements in appearance, health, and energy level. Once these first results are visible, it will be much easier to move to the next step.

Action plan to lose weight

If you decided to take control and get rid of excess weight and the negative effects of obesity on health, you must follow some principles:

Consistency
Temporary actions produce only temporary results. If your goal is to have a beautiful and healthy body forever, or at least for a long time, then instead of temporary diets, you need to permanently review your lifestyle.
Gradualness
It is not necessary to radically change your routine. Otherwise, you risk giving up before seeing results. It is better to start with changes that are comfortable for you in the first stage until you see the first significant results.
Correct actions
To achieve results, changes in diet and lifestyle are necessary—gradual and consistent.

The correct actions to achieve stable results in weight loss and health improvement consist of 3 points:

Nutrition
Physical activity
Hormonal balance

Nutrition for weight loss

Proper nutrition is the fundamental basis of weight loss. The contribution of nutrition to achieving the goal can be estimated at 80%. Even if all you do is change your diet without altering your level of physical activity, you will certainly see results.

Nutrition for weight loss follows the principles of healthy eating + the principle of a calorie deficit. If your goal is to lose weight while improving your health, make sure your new dietary pattern follows the principles below:

Complete nutrition
Glycemic index
Calorie deficit
Absence of harmful substances

Complete nutrition

Complete nutrition is the basic principle of any dietary pattern, including for weight loss. There is a “minimum necessary” of nutrients for normal body function. When reducing total calories to lose weight, it is essential to ensure the body receives all necessary nutrients:

Proteins

They are the building material for most body tissues. Human cells are constantly renewing. For repairing old cells and growing new ones, the body needs amino acids obtained from protein-rich foods. The minimum daily intake is 1 gram of protein per 1 kg of body weight (refers to pure protein, not food weight). Additionally, it is necessary to consider the amino acid profile. There are essential amino acids that the body cannot produce and must be obtained from food. To ensure a complete profile, consume a variety of foods: meat, poultry, fish, eggs, milk and dairy products, cheese, nuts, legumes... Vegetarians and vegans need to pay extra attention to the amino acid profile.

Fats

Fats are also an essential building material. Cell membranes are made of fats. Nerve cells, including brain cells, are 60% fat. Without fats, the body cannot produce hormones. However, fats contain more than twice the calories compared to proteins and carbohydrates, so it is necessary to control the amount. The ideal intake is 60–80 g per day for women and 70–100 g for men. It is also essential to maintain a balance between saturated and unsaturated fats. This helps reduce “bad” cholesterol, lower the risk of heart disease, and prevent insulin resistance. Prefer vegetable oils, nuts, avocado, fatty fish, fish oil, and omega-3 supplements. But do not completely eliminate saturated fats—they are also necessary for the body.

The ideal balance between saturated and unsaturated fats is 50/50. Unfortunately, many people consume approximately 80/20—in favor of saturated fats.

Vitamins, minerals, fiber

Essential for complete nutrition. Vitamins and minerals participate in countless cellular processes. Fiber is necessary for proper digestion. The main sources are fruits and vegetables. Dairy products are also rich in minerals.

Water

It is essential to drink enough potable water. Water participates in virtually all body processes. During weight loss, it is especially important to avoid dehydration. Water removes toxins and metabolic waste. Moreover, thirst is often confused with hunger, leading to overeating.

Carbohydrates

Although general recommendations say that 50% of calories should come from carbohydrates, they are primarily fuel for the body. If necessary, the body can generate energy from proteins and fats. Northern peoples, for example, lived for centuries on very low-carb diets without harming health. Carbohydrates make it easier to adjust total calorie intake. It is also crucial to consider the quality of carbohydrates—specifically their absorption rate, expressed by the glycemic index.

Glycemic index of foods

Different foods raise blood glucose levels with varying intensity. Sugar, white flour, and polished rice, for example, are absorbed quickly and cause sharp glucose spikes. These foods have a high glycemic index.

On the other hand, foods with a low glycemic index—such as vegetables (except starchy ones), low-sugar fruits, berries, barley, and non-instant oats—are absorbed slowly and provide gradual glucose release without sharp spikes.

The GI (glycemic index) is expressed in values from 0 to 100, where 100 is the glycemic index of pure glucose.

Consuming high-GI foods leads to a sharp increase in blood glucose. The body responds with high insulin release. Insulin ensures glucose transport to cells that need it (mainly muscles and liver cells) or to fat cells for storage. The problem is that muscles and liver can store only a limited amount of glucose, while adipose tissue has almost no limit. If you exercised before eating, muscles used part of stored energy and are ready to absorb glucose to replenish their stores. But if muscle and liver stores are full, all excess glucose is sent to fat storage. Additionally, during a glucose spike, insulin is overproduced. Therefore, shortly after, blood glucose drops, causing fatigue and hunger. This creates a closed cycle:

When consuming low-GI foods, glucose is gradually released into the blood without sharp spikes and for a prolonged period. This results in much less intense insulin release. Satiety lasts longer and the obtained energy is mainly used for current body needs rather than replenishing fat reserves.

Therefore, to lose weight, it is recommended to primarily consume foods with a glycemic index below 65. Does this mean high-GI foods must be completely avoided? No. Just gradually reduce their amount.

You can find the glycemic index of a food by consulting GI tables. These tables are easy to find online, but their values may be quite generalized. They do not consider specific varieties and ripeness of fruits and vegetables, processing level, cooking time, or additives in products.

For example, natural yogurt has a low glycemic index, between 20 and 35, depending on fat content (the higher the fat, the lower the GI). Industrial yogurt with added fruit filling contains sugar comparable to popular sodas. The GI of industrial yogurt can reach 85, classifying it as a high-GI food.

We do not provide specific tables here, as they may be inaccurate. Instead, we describe which carbohydrate-rich foods deserve attention.

Non-starchy vegetables
Almost all have a low glycemic index. Additionally, they contain vitamins, micronutrients, and fiber. Consume them without major restrictions.
Fruits and berries
Except for very sweet ones (like dates, bananas, figs, grapes, sweet varieties of apples and pears), they have medium or low GI. They are also rich in fiber and vitamins. Consume in moderation and prefer less sweet varieties.
Grains and pasta
Fruits and vegetables rarely provide enough energy to cover all the body's needs. The missing energy can and should come from grains and pasta, but it is important to choose products and preparation methods carefully. You can use buckwheat, barley, and oats. Prefer unprocessed cereals. Avoid instant cereals. The processing level of cereals is crucial. For example, processed white rice has a high GI (about 80), while brown rice has a medium GI (about 50). Durum wheat pasta cooked for a minimum of 10 minutes is preferable. Cooking method also affects GI: the longer and hotter the cooking, the higher the GI. Therefore, do not overcook cereals or pasta; prepare “al dente,” keeping firmness. Consume in moderation, respecting the necessary calorie deficit for weight loss.
Bread
The glycemic index of bread does not depend on its color (white or dark). The determining factor is the flour used. Refined flour products have a high GI, while the presence of bran slightly reduces the GI. Toasted bread and biscuits have a lower GI than fresh bread. Cakes may contain a lot of sugar, increasing the GI. Like cereals, bread should be consumed in moderation, preferring bread with bran.
Sweets
Most desserts contain a lot of sugar and have a high GI. They are not recommended. Products with fructose are not much better. Fructose triggers a smaller insulin release but is metabolized exclusively by the liver (muscle cells do not use it directly), leading to fat storage and other health issues. This applies only to refined glucose. Fruits and vegetables contain fructose but also plenty of fiber, which reduces negative effects by slowing absorption. Again, if your goal is weight loss, limit very sweet fruits and juices, even natural ones, because juices contain fructose without sufficient fiber.

The amount of sweet products should be very limited, as almost all have a high GI. If you want to enjoy a dessert, the best choice is dark chocolate with at least 72% cocoa, which surprisingly has a low GI—25. But it should also be consumed in moderation, as it contains a lot of fat and therefore many calories.

Sugar is also added to many industrial products: ketchup, mustard, yogurt, bread, breakfast cereals, preserves, sushi, and many others. Pay attention to the ingredients and prefer homemade products, whose contents you fully know.

Fractional eating – it is recommended to eat frequently in small portions
Intermittent fasting – it is recommended to consume all meals within a 4–8 hour “eating window”

Interestingly, some people find that one method or the other actually helps them lose weight.

Studies have shown that fat loss does not depend on the eating regimen but only on the calorie deficit. However, for some people, a specific regimen helps maintain the calorie deficit principle.

Conclusion: you can choose the eating regimen that best fits your lifestyle and makes it easier to maintain a calorie deficit.

A calorie deficit is necessary but not sufficient for a healthy weight loss plan. The deficit should be 15–20% of daily caloric expenditure. It can be adjusted experimentally, following the “slow and steady” principle. The safe rate of weight loss is about 1% of body weight per week. As you approach your ideal weight, the calorie deficit should gradually decrease to zero. Additionally, physical activity influences caloric expenditure and, consequently, the number of calories needed in the diet.

In any case, nutrition should follow the principles of nutritional completeness, limit high-GI foods, and avoid harmful substances.

How to control hunger?

Reducing calories to maintain a calorie deficit does not have to cause intense hunger. If you feel very hungry, check if you:

Did not reduce calories excessively. The ideal deficit is 15–20%.
Are eating a complete diet. The body cannot signal “I need essential fatty acids,” only “I need nutrients,” which we perceive as hunger.
Are drinking enough water. Thirst can also be confused with hunger.
Are consuming low-GI carbohydrates. High-GI foods provide short-term satiety, after which you experience glucose drop, fatigue, and hunger.

Craving sweets?

Sweet foods activate the brain’s pleasure center similarly to drugs. Frequent and excessive consumption can create dependency. This dependency disappears quickly when sweets are stopped. Try to distract yourself with interesting activities. Do not buy or leave sweets in easily accessible places.

Physical activity

The body expends energy for two main purposes:

• maintaining vital functions (basal metabolism: body temperature, breathing, heartbeat, mental processes, cell regeneration...)
• physical activity

Does this mean it is impossible to lose weight without physical activity?
No. It is possible to lose weight without physical activity if consumed calories are less than basal metabolic expenditure. Nutrition plays the primary role, accounting for about 80% of success. It is very difficult to compensate for poor diet with exercise alone. Eating poorly makes physical activity almost useless: you move, but do not progress toward a lean and healthy body.

Does this mean physical activity is useless? NO.
It brings enormous benefits:

  • strengthens the cardiovascular system
  • reduces the risk of cardiac events (heart attacks, strokes)
  • reduces cancer risk
  • improves hormonal balance
  • improves mood
  • increases muscle mass
  • burns calories

Moderate and regular exercise strengthens the heart and reduces the risk of heart attack and stroke. In this regard, duration and regularity are more important than intensity. For heart and vessel strengthening, light activities of about 1 hour, 1–2 times a day, are ideal.

Physical activity also reduces cancer risk, both through weight loss and by neutralizing free radicals. There is a correlation between exercise intensity and risk reduction, so if health allows, do not ignore intense workouts.

Additionally, adequately intense exercises improve hormonal balance, promote hormones beneficial for weight loss, reduce stress, and enhance well-being and mood.

Strength training increases muscle mass. Maintaining muscles is crucial for both men and women, especially older people, as muscle mass tends to decrease with age. Muscles regulate hormones, reduce cardiovascular risks, consume calories at rest and during movement, and protect bones and joints.

Finally, any physical activity burns calories. This point is less critical, as the body compensates caloric expenditure by increasing appetite. Without proper nutrition, physical activity does not guarantee weight loss.

In summary, physical activity is not the key factor for weight loss but significantly improves health, mood, and appearance. Choose exercises compatible with your abilities. Everyone can start by increasing daily activity, like walking 1–2 hours per day, then gradually adding strength training (gym or home) and aerobic exercises (running, swimming, cycling, skiing).

Avoid harmful substances: carcinogens, sugars, trans fats, and harmful food additives
Prefer homemade products
Calorie deficit is necessary for weight loss. But what we eat is also very important.
Physical activity – initial results can be achieved even without it
Physical activity does more than help lose weight. It strengthens the cardiovascular system, reduces cancer risk, and improves hormonal balance and mood.
Practice physical activity according to your current fitness level
Physical activity is accessible to everyone – walking 1–2 hours per day
We cannot directly alter hormonal balance. It depends on diet and physical activity.

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