This comic may be a little harsh, but how many times did I hear this exact thing growing up?! If we have to lie to ourselves to feel better about what we are eating, maybe we just shouldn't be eating it.
This is an example of the difference between sacred and profane. It represents how a symbol is viewed from the outside. In the regard to comedy it shows that western culture is hypocritical of itself that while we see something as unusual or different, in someone elses culture it is sacred and the opposite being true as well.