1. Make a list of high-calorie foods.
2. Plan your daily menu over a week and prepare your food accordingly, in advance, so there is no room left for error.
3. Stop making excuses. If it's important, you find a way to do it. Which takes me to the next point, mental exercises :
- what would you do if a gun would be pointed to your head and asked to find a way to introduce 2700 kcal in yourself every day ? I BET YOU WOULD FIND A WAY !
- what would you do if we would live in a Universe where the laws of physics cause you to lose 80% of your muscle mass if you under-eat ? I BET YOU WOULD EAT !
( I use the same strategies for weight loss folks also, with questions such as " what would you do if you'd have a type-3 Diabetes, in which over-eating just for once would cause you to die ? I CAN BET YOU WOULD FIND THE DISCIPLINE TO NOT OVER-EAT ! " )