Mark Zuckerberg, CEO of Meta, revealed in an interview that he avoids caffeine and mind-altering substances in his daily life.Zuckerberg prefers to experience reality without the help of 'chemicals' and does not drink coffee regularly.Instead, he focuses on physical activities like mixed martial arts to 'recenter' himself and prepare for his role as the head of a major company.Zuckerberg's substances of choice include creatine and vitamins, and he credits the DARE program for shaping his view on controlled substances.