If you have decided to try the keto diet or ketogenic diet, you first need to read this advice guide. Celebrities such as Kim Kardashian, Gwyneth Paltrow or Halle Berry have declared themselves fans of this type of diet, but do you know what exactly it consists of? We explain everything you need to follow it ketogenic diet.

The keto diet has no more and no less than 112 million results on Google in its English version, and close to a million and a half in its Spanish version: ketogenic diet. Keto Diet was searched more than 24 million times on Google, which is equivalent to almost 70,000 searches daily. Celebrities like Kim Kardashian or Gwyneth Paltrow practice it and have made it fashionable in the United States, making it one of the healthiest options for losing weight, managing diabetes and improving cognitive health. A couple of years ago it crossed the pond to become one of the healthy trends in our country.

But this type of diet is not new. According to Dr. Isabel Jimeno, Nutrition expert at the Centro Felicidad Carrera , the keto diet or ketogenic diets in general have existed for years although they have recently become fashionable again. "It was a diet widely used in sports to redefine muscles and later it became popular to lose weight. That's why in recent times it has had such an impact, because it allows you to lose weight and volume while redefining muscle.

So you don't need more data to know that the keto diet is the one that arouses the most interest and curiosity, (with permission from intermittent fasting which generates so much curiosity and about which we can discover a lot) so we are going to tell you everything you need to know about it.

To do this we have asked experts what is it about the keto diet that makes more and more people opt for it? What are the main doubts of those who decide to start the keto diet? What has made it the diet most followed by celebrities in recent years? What has been written about the keto diet? And we answer all these questions.

What is the Keto or ketogenic diet
According to nutritionists, the keto or ketogenic diet restricts the intake of foods rich in carbohydrates, such as cereals, sugar and even certain vegetables andfruits, in favor of foods rich in good fats and proteins, such as oily fish or avocado. "Ketogenic diets limit carbohydrate intake to less than 50 grams per day, which differentiates it from a "low carb" diet where we would only limit carbohydrates to 50-150g per day," explains Clara Llorens, clinical and sports nutritionist, food technologist and member of the Nutralab team. Does the aim? Bringing the body into the blood ketosis process, a metabolic state similar to intermittent fasting, another of the most in vogue in nutrition issues.

Ketosis on the keto diet: what it is
In reality, this state that the body enters is not only typical of the keto or ketogenic diet. This is the name given to the moment in which the body, to obtain energy, uses fat instead of glucose (sugar). The goal of achieving ketosis is to offer the body an alternative source of energy. And it is something that can also be achieved with intermittent fasting. "When we start consuming less than 50 g of carbohydrates a day, the body begins to produce ketone bodies, which are breakdown products of fat and are used for energy by cells as glucose substitutes", explains Clara Llorens..

But to better understand what the keto diet is Martina Slajerova expert in this regime and creator of the app Keto Diet, has published thebook 'The ketogenic diet for beginners', an introductory manual to this lifestyle that promises to change the eating habits of those who practice it. Not only does it have the necessary information to understand all the concepts and dynamics of the ketogenic diet, it also presents more than 100 recipes with natural low-carbohydrate foods.

Keto diet: how does it help you lose weight?
As Martina Slajerova explains in her book, one of the great myths of nutrition is to think that the consumption of carbohydrates is necessary to store a sufficient amount of glycogen muscle that we can use to obtain energy. And that is precisely what brings down the keto diet.

But will it really help us lose weight quickly? "Most trials do not show a great advantage in weight loss over diets rich in carbohydrates," says Clara Llorens. "Initial weight loss on a ketogenic diet (i.e., the first week) is almost exclusively due to water and glycogen, rather than fat. You can't lose several kilos of fat in a week just like that.