Of course, Ash was too young to know that the drinks they were provided with were far more special than the food itself. In the morning, their milk tea or coffee had been enhanced by a special potion Darius had mass-produced for himself, the very same Rare Intellect Boost Potion.
These were teenagers after all, and even if they had high Intellect and learning capabilities, it would be difficult for them to truly focus and absorb all the high-level information Darius presented them with.
So he used his resources to add a diluted version of the potion to their drinks. Although it weakened the overall effect, it also lasted longer, exactly three hours instead of the typical one hour.
Now, their lunch had a potion called the Rare Body Training Potion. It was the same as the Rare Memory Boost potion in the sense that it increased their Endurance.
Similarly, this diluted version was stretched out to last them their three hours of training with Gunner.
