What makes the top high calorie weight gain breakfast? Is it a specific food, or does it come from the balance of convenience and nutrition?
Look at it this way: what would you eat for breakfast if you knew you had to spend the day fighting with swords and shields – if it was life or death?
Armies have won or lost battles because of their breakfast (or lack of it). For you, it could be the difference between winning or losing the stubborn struggle for weight gain.