Emerging research shows that intermittent fasting may reshape metabolic pathways, lower growth signals, and create conditions that make cancer cells more vulnerable. Here’s what the science says.

Researched and written by Keith Bishop, Integrative Cancer Educator, Clinical Nutritionist, Cancer Coach, Retired Pharmacist, and Founder of the Prevail Protocol™ and Prevail Over Cancer.

Daily Intermittent Fasting and Cancer: What Science Really Shows

Intermittent fasting (IF) has moved from a weight‑loss trend to a serious area of oncology research. Scientists are now exploring how fasting windows—often 14 to 18 hours—may influence cancer risk, cancer cell metabolism, and even treatment response. While IF is not an official cancer treatment, emerging evidence suggests it may help create a metabolic environment that is less favorable for cancer development and progression.

Below, we break down what the research shows about daily intermittent fasting, its potential impact on cancer biology...