Jet lag is a circadian misalignment, but the symptoms (fatigue, brain fog, digestive chaos) are amplified by what you eat and drink in transit. Here is the nutrition protocol that aligns your peripheral clocks with the destination time zone, meal by meal.
The principle: food is a zeitgeber
Your liver, gut, and pancreas have their own clocks. They reset primarily by when you eat, not by light. The strategy: eat only during the destination’s daytime, fast during its night, and use specific nutrients to signal the phase shift.
Pre-departure (home time zone)
- Dinner at destination’s dinner time (e.g., if flying to Tokyo, eat dinner at 19:00 JST = 10:00 your time). Protein + complex carb (salmon + sweet potato) — anchors the first “destination” meal signal.
- Hydrate: 500 ml water + 500 mg sodium (electrolyte powder) — pre-loads fluid volume for cabin dehydration.
In-flight (destination time zone)
- Destination breakfast window:
