The values of Water and Energy in "Baked" or "Boiled" Mushrooms are way too high, in comparison to any other type of food.

According to the config files -
Baked mushrooms have 300 energy and 500 water
Boiled mushrooms have 250 energy and 600 water.
(all types)

In comparison -

1. Meat steaks (Baked, all types) - energy 250-300 , water 50
2. Apple, Pear, Plum (Baked) - energy 250-300 , water 100

Mushrooms are very small in reality, they should provide maybe 10% of their current values.
Meat Steaks should have much higher energy values.