Fasting methods
Find the fasting method that fits your life.
Different fasting styles work for different goals, routines, and experience levels. Compare the main fasting methods and build a plan that fits your body, schedule, and comfort level.
16:8 Intermittent
Beginner- What it is
- 16-hour fast, 8-hour eating window.
- Who it's for
- New to fasting, daily rhythm seekers.
- Common challenge
- Skipping breakfast in the first weeks.
- Recommended support
- Hydration, caffeine guidance.
18:6 Intermittent
Beginner- What it is
- 18-hour fast, 6-hour eating window.
- Who it's for
- Comfortable with 16:8.
- Common challenge
- Late-day hunger waves.
- Recommended support
- Meal sequencing tips.
20:4 Fasting
Intermediate- What it is
- 20-hour fast, 4-hour eating window.
- Who it's for
- Experienced with daily IF.
- Common challenge
- Fitting nutrition in 4h.
- Recommended support
- Refeed quality reminders.
OMAD
Intermediate- What it is
- One meal a day.
- Who it's for
- Simplicity over flexibility.
- Common challenge
- Adequate nutrition density.
- Recommended support
- Macro check-in templates.
24-Hour Fast
Intermediate- What it is
- Dinner-to-dinner reset.
- Who it's for
- Weekly resetters.
- Common challenge
- Evening hunger spike.
- Recommended support
- Distraction & sleep prep.
36-Hour Monk Fast
Intermediate- What it is
- A full day plus a night skipped.
- Who it's for
- Discipline-focused practitioners.
- Common challenge
- Sleep on an empty stomach.
- Recommended support
- Hydration & electrolyte cues.
Alternate-Day
Advanced- What it is
- Fast / eat / fast / eat schedule.
- Who it's for
- Long-term habit builders.
- Common challenge
- Social calendar friction.
- Recommended support
- Schedule templates.
48-Hour Water Fast
Advanced- What it is
- Two-day water fast.
- Who it's for
- Experienced fasters.
- Common challenge
- Day-2 fatigue.
- Recommended support
- Mood & energy tracking.
72-Hour Water Fast
Advanced- What it is
- Three-day water fast.
- Who it's for
- Experienced, medically cleared.
- Common challenge
- Refeeding mistakes.
- Recommended support
- Structured refeed protocol.
Extended (Education only)
Medical clearance recommended- What it is
- Education on multi-day fasting.
- Who it's for
- People consulting clinicians.
- Common challenge
- Risk awareness.
- Recommended support
- Educational resources only.
Comparison
By experience tier
Beginner
- · 16:8 Intermittent
- · 18:6 Intermittent
Intermediate
- · 20:4 Fasting
- · OMAD
- · 24-Hour Fast
- · 36-Hour Monk Fast
Advanced
- · Alternate-Day
- · 48-Hour Water Fast
- · 72-Hour Water Fast
Medical clearance recommended
- · Extended (Education only)