Weight Loss

What really makes you lose weight?

Only one thing: a caloric deficit, which means an energy expenditure that consistently exceeds your intake. Everything else—meal distribution, food choices, training, supplements—only facilitates or complicates maintaining this deficit. No product sold on this page will create it for you.

We state this plainly because regulations and honesty align here: no weight loss claims are allowed for dietary supplements in this category, and we will not make any. Any product that promises weight loss on its own is lying to you, regardless of the wording used.

What this page can do is more useful: explain what each category actually provides, and help you avoid buying what won't be useful.

What are these products really for?

Each category has a defined role, and none of them are intended to cause weight loss.

Proteins are the strongest support on the list, for two reasons independent of fat loss: they are the most satiating macronutrient for a given amount of energy, and a high protein intake combined with resistance training helps preserve muscle mass when intake decreases. A whey isolate or clear whey provides a lot of protein for few calories; liquid egg white serves the same purpose in cooking.

Fat burners have a commercial name that poorly describes their content. They are essentially formulas built around caffeine, sometimes combined with plant extracts, chromium, or L-carnitine. The effect you will feel comes from caffeine: alertness, a feeling of energy during training. No weight loss claims are allowed for these products. The same formulas exist in capsules, powder, or caffeine-free versions when stimulation is an issue.

Sugar-free flavor products—zero sauces, zero jams, flavorings and sweeteners—have no metabolic properties. Their only interest is pleasure: they make repetitive meals palatable, which is not insignificant, as food boredom is one of the primary reasons for giving up.

Protein bars and protein snacks are convenient: a portable snack with known composition. They are processed foods, not weight loss products, and they remain less satiating than a real meal.

Electrolytes concern hydration during training, when it's hot or sessions are long. They have nothing to do with body composition.

Multivitamins address a real but indirect problem: when food intake is restricted, its variety often decreases along with its quantity. A multivitamin supplement is a simple insurance against this impoverishment. It is not a weight loss tool, and it does not replace a varied diet.

How to preserve muscle mass?

This is the issue that should take precedence over the number on the scale. In a deficit, the body mobilizes its reserves, and muscle tissue is part of that. However, muscle is difficult to rebuild, and its loss reduces resting energy expenditure, making subsequent efforts more difficult. Three factors are truly important, and none of them are supplements.

Resistance training is the signal that tells the body that muscle mass must be preserved. Without this stimulus, muscle loss in a deficit is significantly greater.

A significantly higher protein intake than during maintenance, distributed throughout the day rather than concentrated in a single meal. This is where protein powder finds its most defensible justification: achieving a high protein total while reducing calories is simpler with a concentrated source. The protein section details the numerical benchmarks, including those from ANSES.

A gradual rather than abrupt deficit. The more severe the restriction, the greater the proportion of non-fat mass in the loss. A drop in training loads is the most reliable signal that the deficit is too pronounced.

Creatine monohydrate can be continued without inconvenience: it supports performance in brief, intense efforts, thus maintaining training load. It retains water in muscle cells, which can temporarily mask weight changes on the scale.

Why does weight loss eventually stop?

A slowdown followed by a stop is expected, not abnormal. Several mechanisms combine.

Expenditure mechanically decreases with weight: a lighter body consumes less, both at rest and in motion. Spontaneous activity also decreases, often unnoticed. Appetite, however, increases. And the accuracy of dietary tracking loosens over the weeks: estimated portions always drift in the same direction.

Before concluding that it's a plateau, check the observation period: variations in water, digestive content, and hormonal cycle can easily mask real changes over a few days. A plateau is judged on an average, not on a single weighing.

If confirmed, two paths exist: further reduce intake, or increase expenditure. The first has a limit beyond which diet becomes difficult to sustain and micronutrient intake insufficient; the second is often more sustainable. A period of returning to balance, without restriction, also has its place. Calibrating all of this requires a professional who knows your situation, not a category page.

Why does the weight often return afterward?

Weight regain after restriction is common and can be explained without mystery. The adaptations described above—reduced expenditure, increased appetite—do not disappear the day restriction stops: if the return to usual eating is abrupt, intake will largely exceed expenditure.

The most crucial factor lies elsewhere: a restriction based on rules you don't intend to keep will not produce lasting results. Habits that do not survive the weight loss period will not protect the outcome. The exit strategy is therefore as important as the period itself, with a gradual increase in intake and the maintenance of resistance training.

This is also why we do not offer diet plans or numerical goals on this page. Real support requires knowing your history, any ongoing treatments, your biological profile, and your relationship with food. This falls under the purview of your primary care physician or a registered dietitian-nutritionist, and them alone. We sell food products; we do not replace a consultation, and we will not claim otherwise.

Frequently Asked Questions

What is a caloric deficit?

A state in which your body expends more energy than it takes in over a prolonged period: it then draws on its reserves to make up the difference. A deficit is not a diet or a method; it is the common mechanism for all approaches that work. An approach that yields results creates a deficit, whether it states it or not.

How do you achieve a caloric deficit?

The principle is to increase expenditure, reduce intake, or both. In practice, it starts by measuring before modifying: most people misestimate their actual intake, almost always underestimating it. The extent of the deficit that suits you depends on your weight, body composition, activity level, health status, and treatments. We will not provide a number here: this is precisely what a doctor or registered dietitian-nutritionist calibrates during a consultation.

How many pounds can you lose per week?

The benchmarks generally adopted by health professionals suggest a reasonable loss of about 0.5 to 1% of body weight per week, or about 0.4 to 0.8 kg for an 80 kg person. This is not an arbitrary limit: beyond this, the proportion of muscle mass in the loss increases, micronutrient intake becomes difficult to cover, and restriction becomes difficult to sustain—which sets the stage for regaining weight. Two nuances: the first few weeks often show more loss, because water and digestive content shift; and the lighter you are to begin with, the slower the reasonable pace. The number adapted to your situation is determined in consultation, not on a web page.

Can you lose 10 kilograms in a month?

Not in a healthy or sustainable way, and we prefer to state this clearly rather than sell you something based on that promise. Ten kilograms in thirty days implies a deficit of a magnitude that exceeds what an adult can maintain without losing muscle, performance, and a significant portion of their vitamin and mineral intake. What the scale shows in such cases is largely water, digestive content, and lean tissue—not just fat—and experience shows that weight regain is almost systematic. The only situations where such rapid loss is supervised are under strict medical monitoring for specific medical reasons. If you have a deadline in mind, talk to a doctor or a registered dietitian-nutritionist: a realistic goal maintained for six months will take you further than a month of severe restriction.

Can you lose weight by stopping eating?

No, not in a useful way, and it's one of the worst possible strategies. Extreme restriction causes weight to drop on the scale, but a significant portion of this loss is water and muscle tissue; resting energy expenditure decreases, appetite increases sharply, and subsequent weight regain often exceeds the starting point. Added to this are real consequences: fatigue, loss of strength, deficiencies, concentration and sleep problems. If the idea of skipping meals or severely restricting your diet seems like the only solution, or if your relationship with food is a burden, talk to your doctor: it's a conversation infinitely more valuable than any product in this category.

What hinders weight loss?

In the vast majority of cases, four very mundane things, and none of them are a "blocked metabolism." First, tracking drift: estimated portions always drift downwards, and oil, sauces, and drinks disappear from the count. Second, the mechanical decrease in expenditure: a lighter body consumes less, and the deficit from two months ago has become a maintenance level. Third, the reduction in spontaneous activity, which goes unnoticed. And fourth, the observation period: three days of stable weight on the scale is not a plateau; you need to think in averages over two to three weeks. If the blockage is confirmed despite rigorous tracking, or if it is accompanied by unusual fatigue or other symptoms, you need to see a doctor: certain medical conditions and treatments influence weight.

Does a fat burner cause weight loss?

No, and no weight loss claims are allowed for these products. Without a caloric deficit, nothing happens. What you will feel comes from the caffeine they contain: alertness and a feeling of energy during training. This is real and useful for maintaining session intensity, but it has no direct effect on body fat. Any communication claiming otherwise deserves your distrust.

Which protein to choose during a deficit phase?

The one that provides the most protein for the fewest calories, and that you digest well. An isolate or clear whey fulfills this role well, with very few carbohydrates and lipids. A concentrated whey also works if it suits you and is cheaper per kilo of protein. The decisive criterion remains the total daily protein intake, not the category of the tub.

Can you target belly fat loss?

No. Fat mass loss is global: the body mobilizes its reserves according to a distribution that depends on individual factors, particularly genetic and hormonal ones, which no localized exercise affects. Abdominal exercises strengthen the abdominal muscles; they do not remove the fat that covers them. No supplement or device alters this order.

In what order do you lose weight?

According to a pattern specific to each person, which you do not choose. Some areas thin out early, others late, and the last to yield are often the ones that concern you the most. This is a classic source of discouragement and does not reflect any error on your part.

How long does it take to see results?

We will not give a timeframe, because there isn't one that's valid for everyone, and a number announced here would be at best useless, at worst discouraging. What is true, however: the first few days of a dietary change primarily shift water and digestive content, which makes the scale misleading at the start. Judge by averages and over weeks, and talk to a healthcare professional if you want a benchmark adapted to your situation.

Why am I losing weight when I'm eating normally?

This question does not call for an answer from a sports nutrition store, and we will not provide one. Unintended weight loss, when your diet has not changed, deserves to be explored by a doctor: the possible causes are numerous, some benign, others not, and none can be diagnosed online. What we can usefully say: do not fill the gap with gainers before understanding what is happening. Make an appointment, and do so quickly if the loss is significant or accompanied by other symptoms.

When should you worry about weight loss?

The benchmark most often used by health professionals is an involuntary loss of approximately 5% of body weight in six months, or any rapid loss that cannot be explained. Consult without delay if it is accompanied by unusual fatigue, fever, night sweats, marked loss of appetite, persistent digestive problems, or unusual thirst. Intentional and progressive weight loss, achieved through an adapted diet and physical activity, does not fall into this category—but it also warrants medical advice if accompanied by persistent fatigue, a drop in performance, or a relationship with food that becomes intrusive.

What can you find in our selection?

We select formulas whose composition is fully transparent: displayed dosages rather than hidden behind a proprietary blend, indicated caffeine content, short ingredient lists. Remember to add up the caffeine from all your products—a fat burner, a booster, and your daily coffee accumulate faster than you might think; EFSA has published guidelines on this topic.

These products are intended for adults only. They are not recommended for pregnant or breastfeeding women and individuals sensitive to caffeine, and medical advice is a prerequisite in case of illness, ongoing treatment, or sleep disorders. When the restriction period ends, the mass gain section is based on exactly the same principle, reversed.

Where can I discuss this near Montpellier?

This is the category where commercial promises are strongest and disappointments are most frequent. Our store in Vendargues, about ten minutes from Montpellier, is where we will tell you directly what, in this section, will not be useful to you—and where we will refer you to a doctor or a registered dietitian-nutritionist when that is what you need. We ship everywhere in France and Europe.

Sources: ANSES for nutritional references and advice on supplements for athletes, EFSA for authorized claims and caffeine guidelines. This information does not replace medical advice. To be integrated into a varied diet and a healthy lifestyle.

To go further: eating a balanced diet and adjusting quantities.