- Fried or Fast Food
- Cruciferous Vegetables
- Carbonated Beverages
- Sugar-Free Gum and Candy
- Airplane Provided Water, Ice, Coffee, and Tea
Check out their article for the rationale behind each of the above. I definitely violate #2 (some wine early in flight), #4(I usually clear the business class cabin of club soda), and #8 (airline provided water).