âFasting and Feastingâ or âIntermittent Fastingâ is what I call a rhythm of meal timing that maximizes the hormonal benefits of cycling caloric intake. Instead of eating many meals throughout the day, fasting and feasting gives you a compressed eating window (typically 16 hours of fasting with 8 hours of feasting). While skipping just the occasional meal can be beneficial, cycling periods of fasting (usually in the morning) and feasting (usually at night) can aid detoxification, encourage fat burning, and improve immune function.