Dry Fasting Research

This meta-analysis examined the effects of various intermittent fasting approaches (including time-restricted eating and intermittent energy restriction) on weight loss and cardiometabolic health markers.

The analysis found intermittent fasting produces comparable weight loss to continuous caloric restriction. Some evidence suggests additional benefits for blood pressure and lipid profiles independent of weight loss. The review included studies on various fasting protocols, providing context for understanding intermittent dry fasting within the broader fasting literature.

This comprehensive review by Fereidoun Azizi examines the health effects of Islamic fasting during Ramadan, which involves daily dry fasting (no food or water) for approximately 12-16 hours.

The review synthesizes decades of research, finding that Ramadan fasting is safe for healthy adults and may produce beneficial metabolic changes. Improvements in lipid profiles, glucose metabolism, and body composition have been observed. However, effects are often transient and return to baseline after Ramadan ends.

This study examined the physiological and psychological effects of Ramadan fasting, which involves abstaining from food and water during daylight hours (approximately 12-16 hours daily).

The researchers found that while fasting altered circadian rhythms and subjective alertness patterns, objective cognitive performance remained largely intact. Body temperature rhythms shifted, and evening alertness increased relative to morning alertness. These findings suggest the body adapts to intermittent dry fasting without significant cognitive impairment.