Challenges › One week
Close the kitchen after dinner
Dinner is the last food of the day. Seven nights.
What you need to do
After dinner, the kitchen is closed. No food until breakfast, seven nights in a row. Water, tea and black coffee are fine. This is not fasting for its own sake; it is closing the door on the calories that come after 8 p.m. and never show up as hunger the next day.
Options that work
- Eat a proper dinner with your protein number in it, so you are not hungry at nine
- Brush your teeth right after dinner. It works better than it should
- Make the evening cup of tea a ritual that replaces the snack
- Go for the ten-minute walk after dinner, then the kitchen light goes off
- If you truly are hungry at night, tomorrow's dinner needs more protein and more vegetables, not tonight's snack
Tip for success
The urge to eat at night is usually a habit, not hunger. It passes in about ten minutes if you do something with your hands.
Part of the fundamental The right amount, honestly.
Why this works
Fasting windows do not add anything on top of a calorie deficit [73], so this challenge is not about the clock. It is about the calories that arrive after dinner: they are almost always ultra-processed, eaten fast, and not compensated for later [55]. Adults who extended short sleep ate 270 fewer calories a day [95], and an earlier stop to eating helps sleep along. Keep it to a 10 to 12 hour window overnight, not a 16-hour one; long fasts make it hard to hit your protein number and risk muscle after 60 [72].
Sources
- Liu 2022, N Engl J Med. Over a year, adding an eight-hour eating window to calorie restriction added nothing to the weight lost. Fasting works when it cuts calories, and not otherwise.
- Hall 2019, Cell Metab. Living in a research unit, people offered ultra-processed meals ate about 500 calories a day more than on matched minimally processed meals, and gained weight instead of losing it.
- Tasali 2022, JAMA Intern Med. Adults sleeping under 6.5 hours who extended sleep by about 1.2 hours ate 270 fewer calories a day with no diet advice at all.
- Lowe 2020, TREAT, JAMA Intern Med. Twelve weeks of 16:8 fasting lost no more weight than three meals a day, and the fasting group showed a hint of lean-mass loss.
The fridge version
One line, seven boxes. Print it and put it where you eat.
Close the kitchen after dinner · one week
Dinner is the last food of the day. Seven nights.
Tip: The urge to eat at night is usually a habit, not hunger. It passes in about ten minutes if you do something with your hands.