This is the most important week—the one we have been preparing for. It serves as the central "pivot" point within the 17-week cycle. During this week, autophagy will reach its peak level.
At this stage, we intensify restrictions to the maximum through a 7-day water fast, supplemented with electrolytes and vitamins to support the body during this detoxification process. The body will stabilize, compensate for any excesses, and undergo a deep cleanse—both of the microbiome and at the cellular level. These 7 days will consist exclusively of water, herbal teas, and coffee, while maintaining a moderately high level of physical activity.

This week follows an 8-week period of preparatory dietary restrictions. The transition from the eighth to the ninth week should be quite seamless; the body is already in a state of ketosis, and the microbiome is undergoing a process of recomposition.

Microbiome: By reducing caloric intake to near zero, the bacteria that were previously favored gain a survival advantage over those already weakened by a lack of nutrients. The goal is to eliminate as many "harmful" bacteria as possible.

Body composition: During this week, you will experience a loss of several kilograms. It is crucial to understand that a significant portion of this weight loss is simply the elimination of water. The loss of fat and other tissues will be approximately 2 to 4 kg (the remainder is temporary weight loss). The body will utilize as much fat as possible. Furthermore, physical exercise—primarily short, intense bursts of activity (VILPA) and a weightlifting session—will signal the body to preserve healthy tissue, thereby focusing on the selective elimination of old or damaged tissue.