Remember when your mom forced you to eat that one remaining veggie on your plate, which you left on purpose?
Apparently, not eating a particular vegetable has nothing to do with your picky or choosy behaviour.
Simply put, the two genetic variants, AVI and PAV, are two ends which enable you to feel a certain chemical as well as the taste of a particular food item.
The problem arises with those who possess two copies of the PAV gene, which makes certain food items extremely bitter for their taste buds.
According to Doctor Jennifer Smith from the University of Kentucky School of Medicine:
You have to consider how things taste if you really want your patient to follow nutrition guidelines.
Apparently, the same gene may also make dark chocolate, coffee and even beer taste unpleasant to some.