On Tim Ferriss's YouTube channel, an expert shared how he uses fasting situationally through various modalities, including calorie restriction, ketogenic diets, and time-restricted eating.
During the conversation, he presented a practice he called "sardine fasting," based on eating one or two cans of sardines a day for a week. This strategy was initially applied to a patient with metastatic prostate cancer.
The interviewee explained that, according to medical reports, this patient lived many years longer than predicted, even reaching periods without any signs of illness. He clarified that in addition to sardine fasting, the patient adopted a low-carb diet and improved other lifestyle habits.
The expert compared this practice with the simulated fasting diet developed by Valter Longo and noted that, in the case described, it was applied monthly or bimonthly. He concluded that these experiences motivated him to delve deeper into research on the potential of ketogenic and energy-restricted diets for various diseases.