What's wrong with the diet? What is the role of self-love?

Considering the impact of diet on physical, mental, and aesthetic well-being, the author sought to create a comprehensive picture of Dietetics - the art of living - through four books. However, as he wrote, it became clear that something important was missing. It felt like a pilot boarding an Airbus without engines; all efforts to fly were futile since the plane wouldn't budge. Similarly, without self-love, a person cannot progress in embracing the art of living or the Dietetics program. Therefore, the author plans to dedicate the fifth book to the topic of self-love, titled "What's wrong with the diet? What is the role of self-love?"