brothers. After moving to Fortaleza, he started teaching jiu-jitsu in the national police while he researched in the Gracie Diet. He also became a real estate investor. In 1948, he published his book Introdução ao Jiu-jitsu, which was mostly a nutrition and philosophy manual despite its title. Judo and Brazilian/Gracie Jiu-Jitsu Gracie Jiu Jitsu developed in Brazil in the early 1900s using techniques learned from the great Japanese Judo champion, Mitsuyo Maeda (known in Brazil as Conde Koma—the "Count of Combat"). Maeda, who was taught by Jigoro Kano, the creator of Judo, fought hundreds of victorious challenge matches against practitioners of other styles using his Judo techniques to overcome them. Maeda had become a champion Judoka in Japan and was so highly revered by Kano he was sent around the world to spread Judo, alongside other fellow talented Judoka. According to reports, the young Carlos Gracie refined his system by fighting in matches that were open to all skill levels and learning from those experiences to make Jiu Jitsu more effective. Some reports claim that he advertised in newspapers and on street corners for new opponents upon whom to practice but no documented records of this exist. Gracie claimed to have fought anyone and everyone who was willing, regardless of size, weight, or fighting style. Later, his claims were challenged by his brother Jorge Gracie, who stated; "My brother Carlos is nothing when it comes to fighting. Carlos does not have the authority nor the competence to speak about Jiu Jitsu… Who created the sporting tradition of my family if not me, in all honesty, with my career?" This tradition of open challenge is a part of the heritage of Gracie style of Jiu Jitsu. After Carlos retired from the ring, he managed the fight careers of his brothers and sons, continuing to challenge fighters of all styles throughout the world. This tradition of open challenge is continued by his sons, grandsons, brothers, nephews, and students. Gracie diet Carlos Gracie copied and adapted a nutritional regimen, from the Argentine/French naturist Juan Esteve Dulin, and is now marketed as the Gracie Diet. Following the Hippocratean maxim "Let your food be your remedy", Carlos aimed this diet to a system that would primarily prevent illness on days of competition. The basic principle of the Gracie Diet is to keep blood pH level neutral by consuming only compatible nutrients at each meal. The