An unfamiliar food asks how much of disgust was taught to the tongue.

Disgust feels like a fact of the body and most of it was taught. What one culture finds nauseating another finds ordinary, and the reaction is immediate and involuntary in both cases, which is precisely how thoroughly it was installed. The strength of the response says nothing about whether it is innate.

This is a reason to be curious rather than certain when something revolts you. Try the unfamiliar food, and notice how quickly the reaction moves once the frame changes. The exercise is small, and it usefully weakens the assumption that a strong immediate response is evidence of anything beyond how you were raised.