Prevention is better than cure.

Paris, France


Diet Expert, personalized programs

diet-expert-logoOnce again, we present a protein-based diet, the DIET EXPERT slimming program.

Among the multitude of high-protein diets on the market, does the Diet Expert program stand out from the crowd? What are its strengths? What are its weaknesses?

Our survey tells you all about the Diet Expert diet.

Diet Expert presentation and promises

The Diet Expert slimming method is based on the same principles as all protein-based diets. High-protein dishes and preparations are combined with a traditional diet, in which starchy foods and sugars are temporarily eliminated.

This reduction in calorie intake, combined with the addition of protein, leads to the phenomenon of ketosis, which causes the body to draw on stored fat for energy. Protein not only helps maintain muscle, but also increases satiety.

Ketosis is a metabolic state that occurs following a low-carb diet, prompting the body to use ketone bodies produced by the liver as an energy source instead of glucose.

The official website lists the many benefits of the Diet Expert diet:

  • A loss of 2-3kg per week;
  • Weekly follow-up with a state-certified dietician;
  • Quality proteins, developed by dieticians and a research and development unit;
  • Delicious products, created by Michelin-starred chef Marc Meurin;
  • Online tools to help you achieve your goals;
  • Access to the Coach Club website, so you can work out from home;
  • A very active community on social networks;
  • + More than 150,000 people have already followed the program;
  • 1500+ members on forums and online chat.

In addition to all this, Diet Expert offers its customers a library of recipes to personalize menus and rediscover a diet to suit all tastes.

For those who also want to firm up their figure, Diet Expert also sells a complete range of slimming and beauty cosmetics.

A telephone diagnosis is available to help you choose the most appropriate slimming package.

Diet Expert offers three programs:

  • The Hyperprotein program: A classic hyperprotein program combining hyperprotein products and traditional foods, with follow-up by a dedicated dietician;
  • Booster program: A hyperprotein program combining booster hyperprotein products and traditional foods, with follow-up by a dedicated dietician;
  • The Gourmet program: A program consisting of a combination of dishes prepared by a Michelin-starred chef and ready-to-eat booster breakfasts, with follow-up by a dedicated dietician.


The Diet Expert manufacturer

Little is known about the manufacturer on its official website, apart from the fact that Diet Expert, formerly known as Diet’avenue, has been active in France since 2002 and is one of the leaders in slimming.

A look at the company’s legal details reveals that it was registered with the RCS in France on 14/04/2015. It is a société à responsabilité limitée unipersonnelle, whose declared activity is “other food retailing in specialized stores”.

Diet’avenue, alias EOL Group, is a company specializing in distance selling from specialized catalogs, which went into receivership in 2008, only to be struck off the French Register of Companies on 03/04/2012.

We are unable to discern the link between these two companies, which legally represent two different and distinct entities!

According to the manufacturer, Diet Expert products are made in Europe, and are subjected to taste tests to offer products of the highest quality in every respect.

The official website is available in several languages, and has a customer service team easily accessible by phone or email.

Diet Expert protein formula ingredients

Since Diet Expert slimming kits come in a variety of products, with preparations for each of the 3 main meals, and with savory and sweet flavors, the ingredients vary.

However, there are several basic ingredients that recur in all hyperprotein preparations.

1. Vegetable proteins:

These are based on soy, wheat, egg white or milk protein.

  • Milk protein is very rich in protein and low in fat, and plays an active role in building muscle.

    Milk protein reduces appetite, but also increases the feeling of satiety.

  • Soy protein is a high-quality protein, just as effective as whey protein.

    It contains all the essential amino acids, as well as potassium, zinc, iron, vitamin E, phosphorus and B vitamins.

  • Egg white is also an excellent source of protein. Its biological value is 93.7/100.
  • Wheat protein, on the other hand, is of relatively low biological value, and is of no particular interest.

The chemical index of the proteins present in Diet Expert formulas is 100/100 for classic packs, and 120/100 for booster packs. This means that the proteins are assimilated extremely efficiently and completely by the body.

2. Inulin:

Inulin reduces blood lipid and glucose levels, increases mineral absorption, relieves digestive disorders and has prebiotic effects.

3. Green Tea Extract:

Green tea is an ingredient renowned for its slimming properties. It increases the body’s basic metabolism, and therefore fat burning. It stimulates lipolysis and promotes elimination.

4. Green Coffee Extract:

Green coffee offers the benefits of caffeine without the side effects. It increases thermogenesis and fat burning, fights fatigue and also stimulates lipolysis.

Scientific studies on the Diet Expert diet

A survey was carried out in 2008, under the supervision of a bailiff and a doctor, to assess the effectiveness of Diet Expert products.

On average, 5 weeks of dieting with the Booster program yielded the following results:

  • A loss of 6.8kg ;
  • – 3.5 cm thigh circumference ;
  • – 6.4 cm waist circumference ;
  • – 7.1 cm around the buttocks ;
  • – 2 cm arm circumference ;
  • – 3.9 cm chest circumference;
  • – 9.1 cm hip circumference.

It should be noted, however, that no official report is available, nor any other source of information that would enable us to verify these results.

A number of studies have investigated the effects of protein and high-protein diets on human health. It’s difficult to list them all, but we’ll just mention one of the most recent, which studied the role of high-protein diets in weight control and the co-morbidities associated with obesity.

This study, carried out by the Department of Nutrition, Exercise and Sport, Faculty of Science, University of Copenhagen, Denmark, examined the impact of a slight increase in dietary protein and a reduction in carbohydrates, and compared the impact of low/high glycemic index in weight control in 932 obese families.

The experiment consisted in putting them on an 800-calorie-a-day diet for 8 weeks. After an initial estimated weight loss of 11kg, these individuals were subjected to 5 different diets, each with different protein content and glycemic index, for a period of 6 months.

In conclusion, the results showed that the DioGenes (régime = diet, obésité = obesity, gênes = genes) diet applied in this study was effective in preventing weight regain and weight loss in overweight children.

For more details on this study, here’s the link to the report.

(Source: International Journal of Obesity (2015) 39, 721-726; doi: 10.1038/ljo.2014.216; Published online 20 January 2015. Department of Nutrition, exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark. Unit of Nutrition Research at the Central Kitchen (EFFECT), University of Copenhagen Hospital Herlev, Herlev, Denmark. Astrup A., Raben A., Geiker N.).

Side effects and contraindications

The FAQ section on the official Diet Expert website, specifies the absolute and relative contraindications to the Diet Expert diet. They are as follows

Absolute contraindications:

  • Children, adolescents ;
  • Pregnant or breast-feeding women;
  • Behavioral disorders, in particular eating disorders, alcoholism and drug addiction;
  • Porphyria;
  • Cerebral arteriopathy;
  • Liver and kidney diseases;
  • Insulin-dependent diabetes;
  • Non-insulin-dependent diabetes treated with oral anti-diabetics;
  • Hemopathy, cancer ;
  • Electrolyte disorders ;
  • Orthostatic hypotension;
  • Cardiovascular or cerebrovascular diseases (cardiac rhythm disorders, infarction, unstable angina, decompensated heart failure, recent vascular accident);
  • Hereditary metabolic diseases;
  • Crown’s disease.

Relative contraindications:

  • Gout ;
  • Lithiasis;
  • Severe ischemic heart disease.

User testimonials on the Diet Expert slimming program

We can’t help but notice the disparity between the opinions expressed about Diet Expert products.

Many people are very satisfied with the results obtained with this diet, with, for example, losses of 11kg in 2 and a half months, or even 21kg after 6 months of treatment.

The support offered by Diet Expert seems to be a real plus for the success of the diet. The vast majority of products are satisfying in terms of taste.

On the other hand, there are also completely opposite opinions!

Other Diet Expert consumers have found the diet totally ineffective and have regained their lost kilos.

Price and guarantee

Diet Expert offers both à la carte products and 3 types of all-inclusive packages.

  • High-protein packages range from 88,57€ instead of 112,85€ for 5 weeks, to 176,55€ instead of 223,70€ for 10 weeks.
  • Booster packs cost from 130,64€ instead of 159,50€ for 5 weeks, to 361,65€ instead of 474,50€ for 15 weeks.
  • Gourmet Boxes are available from 140,04€ instead of 156€ for 5 weeks, up to 391€ instead of 468,60€ for 15 weeks.

Payment can be made in 2, 3 or 4 instalments, free of charge. Delivery is free for purchases over €80, and takes 48 hours.

A 1-year warranty is offered. This begins at the end of the slimming program, and offers free personalized follow-up for up to 1 year to anyone who has regained weight or failed to reach their weight targets in the first year following the end of their Diet Expert program.

Last but not least, a loyalty points system enables new products to be purchased at discounted rates.

site officiel du produit

Our opinion on Diet Expert

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