Many Americans eat bugs without realizing it. 1) Many prepared foods in the US contained colourings and flavourings that are made with insects. 2) Also all flours etc have a certain allowable % of insect parts and believe it or not, mouse droppings.
3)Chitin is the hard portion of an insects body - it is the main source of production of chitosan, which is used in a number of applications, such as a flocculating agent, a wound healing agent, a sizing and strengthening agent for paper, and a delivery vehicle for pharmaceuticals and genes.
So it not like you haven't done it. (or as if your ancestors haven't - In fact one of the persistent enzymes all humans have is one that allows you to digest chitin unlike the one all babies have to digest milk but often is lost as you age.)