A tip I found out by accident, The chief has certain powers he can only use once a day. I lost one of my people to starvation, then when I was about to start all over, my chief was weakened so I took him over to the food bin to eat, and lo and behold, he raises his arms, a gong goes off, and the caption says creating magic food. The bin goes up in count by 150, then the gong sounds again and the count goes up again.