The books of Frank Suárez: a guide to where to begin

If you have been with us for a while, you have heard us repeat one simple idea: knowledge is the most powerful tool for understanding your metabolism. It is not a nice slogan — it is the experience of thousands of people who finally understood why their body worked the way it did, and stopped fighting in the dark.

As Frank Suárez wrote, "you simply can never solve a problem you don't understand." That is why he devoted his life to one thing: taking complicated topics about metabolism and explaining them so clearly that anyone could follow them. That legacy lives on today in his books.

In this article we walk you through what you will find in each one, so you can choose where to begin.

The Power of Your Metabolism

This is Frank Suárez's flagship book and the natural starting point. In plain language, it gathers the central ideas about how metabolism works and why so many diets leave people frustrated.

One of its most remembered lessons is this: a person's weight does not depend only on what they eat, but on the overall state of their metabolism. Think of the body as an engine and food as the fuel — if the engine is not running well, the answer is not simply to pour in less petrol. It is a shift in perspective that has helped a great many people stop blaming themselves.

Ultra Powerful Metabolism

One of Frank Suárez's most complete works. It is written for readers who already know the basics and want to go deeper — not only into caring for the metabolism, but into everyday energy and general wellbeing.

Here Frank explains in detail the balance between the excited and passive metabolism, how emotional tension can become an obstacle, and how to use the 3x1® Diet correctly within the NaturalSlim® Personal Program. It is the book that most closely connects the theory with daily practice.

Diabetes Without Problems

One of Frank Suárez's most ambitious books. In it he addresses topics of metabolism and lifestyle aimed at a broad audience, with his trademark clarity and his determination to make information accessible.

Because he knew that many of the concepts would be new to the reader, this book — like all of his — includes a glossary and explanatory notes that make it easier to read. It is a good example of his teaching style: never assuming the reader already knows everything, and defining each technical word the moment it appears.

A Man's Right to Sexuality

A book devoted to men's wellbeing, a subject that is rarely discussed openly and surrounded by taboos. Frank approached it with the same frankness and the same educational focus as the rest of his work, connecting it to the overall state of metabolism and health.

Recipes: The Power of Your Metabolism

The most practical book in the collection. It brings together more than 200 recipes built around the 3x1® Diet: main dishes, breakfasts, drinks, soups, smoothies, and even breads and desserts.

Alongside the recipes, it reviews the essentials: what metabolism is, why it slows down, and how food influences its passive or excited side. It is the simplest way to bring Frank's ideas into your kitchen, without feeling that you are giving up the pleasure of eating.

The knowledge that stays with you for good

What all these books share is not a promise, but a tool: information you understand once and that stays with you for the rest of your life. As Frank put it, "experience had shown me that the only thing that lasts forever is knowledge."

You can find the Frank Suárez Book Collection in our shop and choose where to begin, based on what interests you most.

And if you would rather not go it alone, at NaturalSlim Europe you have a team of Certified Metabolism Consultants ready to guide you step by step. You can discover the Personal Program with no commitment — because there is nothing to buy to start understanding your metabolism.