"Reboot with Joe" is a health and wellness initiative created by Joe Cross, an Australian entrepreneur and filmmaker. The program focuses on the benefits of a juice-based diet, particularly through the consumption of fresh vegetable and fruit juices. It aims to promote weight loss, improved health, and increased energy levels. The initiative gained popularity through the documentary film "Fat, Sick & Nearly Dead," which chronicles Joe's personal journey of transformation. Participants in the program often share their experiences and results, highlighting the positive impact of juicing on their overall well-being and lifestyle changes.