Dislike of certain foods-is it genetic or a learned behavior?

[perdidochas]

Last night I met some friends for dinner at a local pizza place. The three of us arrived and ordered a combination pizza and about 20 minutes later another friend showed up with her son. The son took his piece of pizza and pulled off everything but the cheese, and the mom did the exact same thing except for the pepperoni. The funny thing was as the son removed the toppings, the mom said that he is horribly picky and she thinks that his distaste for certain foods must be inherited from the father.

It got me thinking...is this inherited or a learned behavior? I guess it could be a little of both.

Mainly learned, but a little bit inherited.