Fasting · 18/6
18/6 fasting when 16/8 no longer feels like enough structure
A longer fast with a shorter six-hour eating window
- Pattern
- 18/6
- Fasting
- 18 hours
- Eating
- 6 hours
What 18/6 means
18/6 intermittent fasting uses an 18-hour fast and a 6-hour eating window. Suited to people already comfortable with 16/8 who want a tighter day.
Who it fits
- Experienced intermittent fasters
- People who prefer two meals closer together
- Training days that still need a defined fuel window
Example day
- Example: eat from 1:00 PM to 7:00 PM
- Fast from 7:00 PM until 1:00 PM the next day
- Keep meals protein-aware inside the short window
How to run it in Limotein
- Select 18/6 in Limotein
- Start when the eating window closes
- Use Today or the widget so the long fast stays visible
- Confirm meal logs carefully inside the six-hour block
Practical tips
- Do not stack aggressive cuts with 18/6 without professional guidance
- Plan groceries before the window opens
- Exit the fast early if your body signals distress
Limotein is a tracking tool, not medical care. Read the Disclaimer before changing how you eat or fast.
FAQ
What is 18/6 intermittent fasting?
18/6 means fasting for 18 hours and eating within 6 hours. It is stricter than 16/8 and usually comes after you can sustain shorter windows.
Is 18/6 safe for everyone?
No. Longer fasts are not appropriate for everyone, including many people who are pregnant, underweight, or managing medical conditions. Ask a clinician if unsure.
Can Limotein time an 18/6 day?
Yes. Choose 18/6, start the timer, and keep elapsed time nearby while you fast.
Other fasting windows
- 12/12 Equal fasting and eating windows for an easier start
- 13/11 A slightly longer fast without jumping straight to 16/8
- 14/10 Fourteen fasting hours with a daylight eating window
- 16/8 The classic intermittent fasting window, without losing the timer
- 20/4 A twenty-hour fast with a four-hour eating window
- 23/1 OMAD One meal a day, with a timer that does not disappear
- Custom Set your own fasting and eating hours, then keep the clock honest
Keep the timer where you can see it.
