In the game we have nuts, like hazelnuts, they give 55% energy.
Chestnuts give 60% energy.
At the same time, blueberries give you 75% energy.
However, nuts have 10x more energy than berries by weight, because the water and sugars are instead replaced with mostly fat and protein.
What I'm implying is that nuts should give a
lot more energy than any fruits or berries.