Board Thread:Questions and Answers/@comment-5070935-20130424141444/@comment-7486518-20130424162623

http://dragon-story.wikia.com/wiki/Food_Costs

This has a chart of the patterns of food cost. You can compare your dragon to it by specific level and cost to feed it..

So if your ____ Dragon takes 4 food per feeding at level 1, you find the chart that matches 4 food at level 1, and you'll see all the other costs too.