Fasting is one of the oldest spiritual disciplines in Christianity. Jesus fasted. The Apostles fasted. For most of Church history, regular fasting was as ordinary as Sunday Mass. Today, many Christians have lost touch with when and how to fast. The benefits remain as real as ever.
Fasting draws the soul closer to God. It is a form of prayer with the body, expressing dependence on Him rather than on material comfort.
The early Church Fathers taught that fasting and prayer go hand in hand. When the body is quiet, the spirit hears more clearly.
Saying no to appetite strengthens the will. What begins as a small sacrifice builds the habits of temperance and self-mastery.
Modern research confirms what monks knew for centuries: periodic fasting supports metabolic health, mental clarity, and longevity.
Fast Days calculates every fasting and abstinence day of the year, so you never have to guess.
Ash Wednesday, Lent, Ember Days, vigils, Advent. The app computes them all automatically based on the Church calendar, including moveable feasts like Easter.
Three levels of practice. Whether you're exploring fasting for the first time or returning to a stricter observance, there's a tier that meets you where you are.
A short reflection from Scripture or the Saints every day. Context for why you're fasting, not just when.
The Catholic fasting discipline has changed over the centuries. Fast Days lets you choose how you'd like to observe it.
The minimum required today: Ash Wednesday, Good Friday, and abstinence on Fridays of Lent. A good starting point if you're new to fasting.
What your grandparents observed: all of Lent, Ember Days, vigils of major feasts, and abstaining from meat every Friday of the year.
The full practice of the early Church: extended fasts, strict Lenten rules, the complete Advent fast, and Wednesday abstinence year-round.
The Church has always exempted pregnant and nursing mothers, those with health conditions, the young, and the elderly. Fast Days makes these exemptions clear and easy to set, because the point of fasting is spiritual nourishment, not hardship.
