I know a way to get the food up so for the next few days when you leave the game leave it on pause over night until you chief creat magic food every 24 hours I did this with my 4th game I started and paused it every day and got my chief to creat magicly creat food and it worked so after a week I had 2000 food and my villagers only age 1 Isola year

So my villagers did not worry about food any more and got on with reseaching and building.