Jack LaLanne, the exercise and nutrition guru who was known as “The Godfather of Fitness,” passed away Sunday at the age of 96, the AP reports. LaLanne died of respiratory failure stemming from pneumonia in his Morro Bay, Calif., home, according to his agent. LaLanne, who championed the merits of exercise well before it became fashionable, was familiar to television audiences for hosting the workout show The Jack LaLanne Show, which ran from early 1950s to the mid-’80s. He authored many health advice books, including Live Young Forever, which was released around his 95th birthday.

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