Frequently Asked Questions (FAQ)

The high-protein diet proves to be a suitable option for both moderate weight loss (starting from 2-3 kilos) and for more significant goals (10 kilos, 15 kilos, 20 kilos, or even 30 kilos). nThe Cetofine 21 high-protein diet is divided into four distinct phases. During the first phase, that of the strict protein diet, it is not uncommon to observe a weight loss of about 2 kilos per week. nIn the second phase, the mitigated protein diet, losses can reach up to 1.5 kilos per week. nThe third phase, that of stabilization, allows for a more moderate weight loss of about 0.5 kilos per week. nFinally, during the fourth and last phase, you can expect to lose about 0.3 kilos per week.

Ketogenesis is activated only if your carbohydrate consumption (slow sugars, fast sugars, ... hidden) is less than 30 grams per day.nThis happens quickly, and it's also the reason why certain vegetables are forbidden or limited in Phase 1 and 2. This threshold will be exceeded at the slightest deviation from your weight loss program.nYou can find various information about the functioning of your metabolism and ketogenesis by clicking here.

The protein diet does not pose a problem for the kidneys when they are healthy.nAlways remember to drink at least 1.5 to 2 liters of water per day. However, if you already suffer from a kidney condition, the increase in urea production due to the use of proteins by your body could amplify the problem.

The high-protein diet is an effective diet! It allows for rapid weight loss by reducing carbohydrate consumption and increasing protein intake.nWeight loss is mainly due to the reduction in caloric intake and the ability of proteins to promote satiety.nMoreover, a high-protein diet promotes the preservation of muscle mass during weight loss.nFor example, the high-protein diet allows you to lose 10 kilos in 1 and a half months.nDiscover the slimming kits

The duration of the high-protein diet depends on your weight loss goal. The more weight you want to lose, the longer it will last. There is no maximum duration.nThe duration of each phase is proportional to the total duration of the diet. You will continue the phase 1 program until you reach 70% of your weight loss goal, the phase 2 program until you reach 80% of your goal, the phase 3 program until you reach 90% of your goal, and the phase 4 program until you reach your goal.nIf you want to lose 2 kilos, the diet duration is estimated at 11 days, while if you want to lose 30 kilos, the diet duration extends to about 168 days.n

Yes, you can engage in physical activity and it's even recommended, as it allows you to feel good in your mind and body, but also to target your weight loss and slim down more effectively.nHowever, during Phase 1, it's preferable to limit intense activities in case of fatigue.

nnConstipation: The decrease in dietary fiber consumption can lead to digestion and intestinal transit problems. This is why you will need to consume vegetables. Refer to the list of allowed vegetables.nnnBad breath: When the body enters ketosis, it produces ketone bodies that cause slightly unpleasant breath. Drink plenty of water and take a mint candy.nnnDehydration: An increase in protein consumption can lead to water loss, which can cause dehydration if you don't drink enough. Drink between 1.5L and 2L of water. nn

You will follow your diet without hunger or fatigue. When your body enters a state of ketosis, it produces ketone bodies.nThese ketone bodies have the characteristic of being psychotonic (not causing fatigue) and anorexigenic (inducing an absence of hunger sensation and providing a feeling of satiety).

During your diet, we ensure that you don't feel hungry or tired.nWhen your body enters ketosis, it produces ketone bodies that keep you energetic without causing hunger. The ketone bodies produced are anorexigenic, which means they eliminate any feeling of hunger and provide you with a sense of satiety.nMoreover, our protein-rich meals are very filling. You eat 5 times a day if you're a woman and 6 times a day if you're a man, which leaves you little time to feel hungry between meals.

During your protein diet, your diet will include: High-protein sachets or other high-protein products (protein ready meals, protein biscuits, protein bars, …) Permitted vegetables (a list will be provided for each stage). Some vegetables contain too many carbohydrates and are not permitted. For others, it is the quantity to be consumed that is limited. Dietary proteins. From stage 2 of the protein diet, you will have a slimming meal at lunch and dinner. These meals include dietary proteins such as animal proteins and/or dairy proteins. Sugar-free drinks such as tea and coffee. Carbohydrates or fats in small quantities (only at the end of the protein diet). During stage 3 of the protein diet, you will have a full breakfast. During the last stage, stabilization, your meals will include foods from all food groups in limited quantities.   At the start of your protein diet, we will provide you with a detailed guide explaining how to compose your meals, when to have your meals and what you can eat depending on your diet stage.

In a high-protein diet, certain foods are generally avoided or limited due to their high carbohydrate or fat content, particularly those rich in carbohydrates such as fruits, cereals, pasta, bread, sweets and sugary drinks.  As you progress through the stages, some of the above foods are permitted again. Fatty and processed foods should also be avoided, such as fried foods, industrial snacks and sugary or fatty products.

The high-protein diet is a low-calorie diet that restricts certain foods for rapid weight loss. However, these foods can provide essential vitamins and minerals. If you are following the strict high-protein diet stage (with 5 sachets per day, vegetables and water), it is recommended to take a dietary supplement such as the multivitamin supplement, available on our website. This supplement, specially chosen for this diet, will help you avoid deficiencies and maintain your health thanks to its richness in nutrients. Simply take 1 tablet in the morning.

The high-protein diet is suitable for anyone who wants to lose weight and doesn't have major health problems. It is particularly suitable for the following people:nnOverweight individuals, with moderate to significant excess weight. To determine if you are overweight, you can calculate your Body Mass Index (BMI).nPeople who are looking to maintain their ideal weight (target weight) or lose a few pounds in a mild manner.nnThe high-protein diet involves a change in your eating habits. This is why it is only suitable for people in good health.nIf you have health problems, please refer to the section below.

The high-protein diet is not recommended for:nnnPeople suffering from kidney, liver, or heart insufficiencies. nnnPeople who have had a myocardial infarction in the previous year. nnnPeople undergoing digitalis and diuretic treatment. nnnPregnant or breastfeeding women. nnnPeople with untreated hypokalemia. nnnIndividuals with hyperuricemia or gout. nnnPeople with psychological disorders that could hinder understanding and following the diet.nnnIf you are in good health and want to lose weight, you can follow a high-protein diet without any problems.

Pregnant or breastfeeding women cannot follow the high-protein diet.nPregnant or breastfeeding women have specific nutritional needs to support the growth and development of the fetus or infant, as well as to ensure their own health. A high-protein diet, which is characterized by calorie restriction and a high concentration of proteins, may not provide all the essential nutrients needed during this period.nYou can follow a high-protein diet if you want to lose weight after your pregnancy, once the breastfeeding period is over.

From the first week of the high-protein diet, you will be able to see significant weight loss.nIndeed, if you follow stage 1 of the high-protein diet, your body will enter a state of ketosis after 48 hours of dieting. Ketogenesis is a natural process that triggers rapid fat mass weight loss as soon as your body is deprived of carbohydrates.nDuring this period, you can lose up to 2 kilos per week.nWe recommend that you do not weigh yourself every day but only once a week in order to properly track your progress. Weighing yourself every day will not have the effect of accelerating weight loss.

When you reach stage 3, stabilization, you have already accomplished 80% of your weight loss goal.nDuring this stage, you will continue to lose weight, about 0.7 kilo per week during transition and 0.3 kilo during stabilization. Although these numbers seem modest, it is essential not to underestimate the importance of these stages.nThe last two stages of the high-protein diet aim to restore metabolic balance to prevent the yo-yo effect after the diet, rather than pursuing significant weight loss.

If you neglect the transition and stabilization steps, your body may be shocked by a sudden return to a classic diet. It is this rush that often leads to weight regain after a diet, a phenomenon known as the yo-yo effect.nThese stages allow you to develop better eating habits and learn to eat in a balanced way.n

If you find the stage 1 program too strict, you can start your high-protein diet with stage 2, the mitigated protein diet. You will keep one more classic meal.nThis option may be preferred by people who do not want to consume only high-protein sachets to lose weight.nIf you choose this option, your diet will last a bit longer but you will reach your weight loss goal.

The duration of the high-protein diet is adjusted according to your weight loss goal. To help you determine the duration of your diet, we have developed a table summarizing the duration of each stage based on different weight loss goals. nTo view this table, please click here.nTo give you an idea, we offer slimming kits to lose 3 kilos in 2 weeks, 6 kilos in 1 month and 10 kilos in 1 and a half months.

Phase 1 is the strictest phase. You will consume only high-protein sachets (5 per day) accompanied by allowed vegetables and sugar-free drinks such as tea or coffee.nThe high-protein sachets come in various forms: drinks, desserts, savory meals, soups, etc.nSee the high-protein sachets

During phase 2, called the modified protein diet, you will replace one of the protein sachets at lunch or dinner with a more traditional meal. This meal should include dietary proteins, whether of animal or dairy origin, as well as allowed vegetables.nYou will have a choice among a variety of foods such as white ham, lean meat, fish, eggs, cottage cheese, yogurt, cheese, etc.nRefer to the section below to learn more about the composition of the slimming meal.

A slimming meal allows you to reintroduce dietary proteins into your diet while giving you the feeling of eating a real meal. Here's how to compose such a meal:nFor proteins, you have a choice between different options:nnA portion of animal proteinsnA portion of dairy proteinsnOr half a portion of animal proteins combined with half a portion of dairy proteins.nnAccompany this with a portion of allowed vegetables, raw or cooked. A list of allowed vegetables for each phase will be provided to you.nTo give you an idea of what a portion of natural dietary proteins represents in a slimming meal, here are some examples:nAnimal proteins:nn2 slices of ham (pork, turkey, chicken)nor 300g of shelled crustaceans or seafood (shrimp, shellfish, crab, ...)nor 150g of lean meat (veal, skinless poultry, beef, game, offal)nor 1 ground beef steak containing between 5% and 15% fatnor 200g of white fish (whiting, hake, cod, ...)nor canned tuna in waternor 2 eggs (1 to 2 times a week) soft-boiled, hard-boiled, or fried.nnDairy proteins:nn300g of 0% fat cottage cheesenor 150g of 20% fat cottage cheesenor 100g of 25% fat cheesenor 60g of 45% fat cottage cheesenor 2 yogurtsnor 2 plain or sugar-free soy desserts sweetened with aspartame, stevia, or acesulfame.nnDon't forget to accompany your meal with a sugar-free drink.

Phase 3 combines a balanced breakfast including fruits and bread, the use of Cetofine 21 high-protein sachets, and the incorporation of dietary proteins.nThis step follows phase 2 and aims to gradually reintroduce carbohydrates into your diet.nYou can also enjoy our complete range of snacks, protein biscuits, and protein bars.nYou can consume these protein snacks during your 10 am and 4 pm snack times.

In phase 4, the meal plan from phase 3 is maintained, but with the addition of starches during lunch. You can include starches such as rice, pasta, bread, etc.nAt lunch and dinner, meals also consist of dietary proteins.nYou will consume high-protein products only for your 10 am and 4 pm snacks.

Number of sachets to order during phase 1, the strict diet (to continue until reaching 70% of your weight loss goal): nnWomen: 5 sachets per daynMen: 6 sachets per daynnNumber of sachets to order during phase 2, the mitigated diet (to continue until reaching 80% of your weight loss goal): nnWomen: 4 sachets per daynMen: 5 sachets per daynnNumber of sachets to order during phase 3, the transition (to continue until reaching 90% of your weight loss goal): nnWomen: 3 sachets per daynMen: 4 sachets per daynnNumber of sachets to order during phase 4, the stabilization (to continue until reaching 100% of your weight loss goal): nnWomen: 2 sachets per daynMen: 3 sachets per daynnYou will simply need to multiply your daily requirements by the number of days spent in each phase.nFor more information about the total number of high-protein sachets you will need to order, click here.

No, you have the option to order your high-protein products in multiple installments.nWe strongly encourage you to do so in order to discover our various products and select your favorites. You simply need to plan ahead a little and schedule your orders so they arrive on time, avoiding any interruption in your weight loss diet.nOur estimated delivery time is 24 hours.

Don't give up!nIf you find yourself in a situation where you have run out of sachets for your high-protein diet and your delivery is delayed, it is crucial to maintain the principle of your diet, which consists of avoiding carbohydrates and consuming proteins.nYou can then opt for protein sources such as chicken, eggs, and fish. Accompany them with the vegetables allowed according to your diet phase. Make sure to consult your list of allowed vegetables.nDon't hesitate to contact us if you need advice.

No, the slimming kit contains everything you need to follow your diet without worrying about which products to order. nWhen you order a slimming kit, you receive:nnAll the high-protein sachets necessary for your chosen weight loss goal. We select the favorite recipes of our clientele.nA shaker to prepare all your slimming recipes.nA guide to accompany you every day towards the success of your weight loss goal.nDietary supplements to ensure you get all the vitamins and minerals your body needs.nnOrder a slimming kit

Most of our high-protein sachets and snacks are compatible with a vegetarian diet.nThe majority of our high-protein sachets are made from milk proteins, making them perfect for vegetarians who want to lose weight or simply increase their protein intake in a healthy way.nClick here to view the list of our high-protein products containing animal proteins.

If you like to finish your meals with a dessert, no problem.nAll sweet or savory high-protein sachets have an equivalent nutritional value. All high-protein sachets contain about 18 grams of protein, whether they are sweet or savory.nThus, you just need to make a salad with the allowed vegetables or a vegetable stir-fry and finish with a sweet Cetofine 21 high-protein sachet for dessert.nA list of allowed vegetables will be sent to you at the beginning of your protein diet.nFor example: Eat a salad composed of lettuce, mushrooms, tomatoes, asparagus, and cucumbers with a small vinaigrette (1 tablespoon of olive oil, balsamic vinegar, and a bit of strong mustard). Then, you finish the meal with a Chocolate Dessert protein sachet.nHigh-protein desserts

If ketogenesis is properly established, you won't feel hungry or tired.nHowever, you may feel hungry during the first 2 days of the diet. This is the time it takes for your body to enter ketosis.nIn this case, take an additional high-protein sachet. The feeling of hunger should pass quickly. Beyond that, it may not be hunger, but the desire to snack that you're missing.

It is not recommended to consume fewer sachets than planned in your weight loss program.nThe amount of protein contained in the high-protein sachets serves to guarantee you the nutritional intake your body needs. This ensures you maintain your muscle mass with targeted fat mass reduction.

In the first 72 hours of your diet and if possible throughout the period of stage 1 and 2, we advise against making an exception. Any deviation during this period, even minimal, stops weight loss and breaks the ketogenesis process.nIf you make an exception in Stage 1 or 2, simply continue the diet. It will take you 3 more days to properly restart weight loss, but all is not lost.nExceptions are much less impactful after stage 2: After this period, in case of an invitation, don't panic.nnChoose steamed or grilled meat or fish, shellfish, seafood, a nice salad, vegetables.nAvoid appetizer snacks, bread, starches, dessert, alcohol...nIf you really can't avoid alcohol, choose a glass of red wine or a flute of champagne instead.nnTake a high-protein sachet before going to the restaurant, this will help you not to overindulge on bread by feeling less hungry.nIf you make an exception in Stage 3 or 4, don't weigh yourself the next day and do a Stage 1 day to compensate.

No, you don't need a medical certificate to order Cetofine 21 high-protein products.nHowever, for more than two decades, we distributed our high-protein sachets exclusively on medical prescription, with follow-up by numerous nutritionist doctors throughout France.nSince 2018, we have made our method accessible online to offer the high-protein diet to a wider audience.nOur French laboratory is committed to offering you high-quality protein products, we ensure that all our sachets have a chemical index higher than 100.

To maintain your weight after your high-protein diet, the key is to continue following the stabilization advice we have given you. You have all the necessary resources to adopt a balanced diet.nOpt for a balanced diet and try to incorporate regular physical activity, even if it simply means walking instead of taking the car.nMoreover, it is essential to monitor your carbohydrate intake, especially in the first days following the end of the diet.nFor additional advice on balanced eating, click here. Don't hesitate to check our blog where you will find numerous resources to avoid regaining weight.nAvoid the yo-yo effect

High-protein sachets can be consumed even after the end of your high-protein diet.nFor example, in case of excess, you can opt for a day of the Phase 1 program.nThey can also be used for your snacks to avoid nibbling, increase your protein intake, or for a less caloric meal than usual.

Absolutely. High-protein sachets can contribute to maintaining weight loss. Their low calorie content makes them an ideal option to counter dietary excesses while maintaining a stable weight.nWe still recommend adopting a healthy lifestyle to avoid regaining weight by eating a balanced diet and engaging in physical activity.

To prepare your protein sachets, simply refer to the instructions on each product. Generally, you'll need to add the contents of the high-protein sachet to 200 ml of water, then shake and heat (without boiling). Use your Cétofine 21 shaker! Check out the videos below to see how to prepare your protein sachets.

Each Cétofine 21 high-protein sachet, regardless of its recipe, provides 18 grams of high biological quality protein. There are two main standards for high-protein sachets: Those dosed at 15 grams of protein. Those dosed at 18 grams of protein.   Although this may seem insignificant at first glance, a sachet dosed at 18 grams contains 20% more protein. At Cétofine 21, we offer only high-protein sachets containing 18 grams of protein. There is the same amount of protein in each of our high-protein sachets, whether it is a protein cocoa drink or a velouté.

High-protein sachets are made from milk proteins. These proteins are chosen for their completeness, containing a wide range of essential amino acids. For high-protein omelettes, egg proteins are often used for their nutritional profile. Additionally, some high-protein soups may contain soy proteins.  It is important to note that the specific composition is always indicated on each high-protein sachet for full transparency on the ingredients used.

High-protein sachets contain other important nutrients, but in small quantities compared to your body's needs. During tier 1, the strict diet, you will only consume high-protein sachets. This is why we recommend taking a dietary supplement, the multivitamin supplement, rich in vitamins and minerals to avoid any deficiencies.

Cétofine 21 offers a range of gluten-free high-protein products for all people who are intolerant, allergic, or sensitive to gluten. This gluten-free range is also aimed at anyone wishing to consume fewer gluten-containing foods. Gluten-free high-protein

A high-protein sachet contains 18 grams of high biological value protein, equivalent to: 2 large eggs 80 grams of canned tuna (in water) 80 grams of ground beef 90 grams of chicken breast 100 grams of red meat 160 grams of tofu 170 grams of cooked salmon 220 grams of cooked lentils 230 grams of plain Greek yogurt And many more examples.

Cetofine 21 high-protein sachets are made with high biological value proteins.nIn stores, the quality of proteins can be very different. Cetofine 21 ensures an average of 18 grams of protein per sachet. (not 15 grams)nIngested proteins are broken down by digestion into amino acids. These amino acids (AA) are absorbed in the intestine to be then used by the body. 11 amino acids are called essential. This means that the human body is unable to synthesize them and their deficiency causes imbalances.nIt is important to carefully check the nutritional value of each product in order to compare similar products.

Aging induces various changes including loss of muscle mass. This decrease leads to a reduction in strength and physical performance.nTo counter this muscle loss, it is crucial for older people to ensure they consume enough protein. Each high-protein sachet contains 18 grams of protein.nConsuming high-protein sachets is a practical and simple way for seniors to consume sufficient protein.nIf you are an older person wanting to lose weight, we recommend consulting a healthcare professional before starting our high-protein diet with phase 2, the modified protein diet.

Number of sachets to consume during phase 1, strict diet:nnWomen: 5 sachets per daynMen: 6 sachets per daynnNumber of sachets to consume during phase 2, modified diet:nnWomen: 4 sachets per daynMen: 5 sachets per daynnNumber of sachets to consume during phase 3, transition:nnWomen: 3 sachets per daynMen: 4 sachets per daynnNumber of sachets to consume during phase 4, stabilization:nnWomen: 2 sachets per daynMen: 3 sachets per daynnHigh-protein sachets are consumed for breakfast, snacks, and meals (lunch and dinner).nThe variety of available recipes will allow you to vary your meals throughout your diet.nIf you are still hungry, which is unlikely to happen, you can consume an additional high-protein sachet to avoid snacking on something too sweet or forbidden during the high-protein diet.

You can consume protein sachets every day as part of your daily diet.nConsuming protein sachets every day, for example, for your snacks, will allow you to maintain a good protein intake and avoid snacking on overly sweet foods.nSince proteins are filling, you can consume a high-protein snack to wait for the next meal without worry, without feeling weak.

Delivery times are on average 24 hours on business days for deliveries in France.nHowever, it may take a bit longer during periods of high activity.nAlso, an order placed on Friday after 3 PM will only be shipped on Monday.

You can pay in installments for purchases of 100€ or more. To do this, place your order normally, and when it's time to pay, choose "Payment in installments".

In case of an error on an order or for any change request, simply contact us as soon as possible to inform us.nYou can reach us by:nnPhone: Call us at 05 79 87 01 40 from Monday to Friday (9AM-1PM and 1:30PM-5:30PM)nEmail at info@cetofine.comnThe contact form.

Don't worry. Simply click on "Forgot password" in your personal account where you usually log in.nThen enter your email address. Your password will be reset and you will receive a new password at your email address.nIf you don't receive the email, it may be in your spam or junk mail folder.nIf needed, contact us at 05 79 87 01 40, and we will create a temporary password for you that you can change once you're connected again.