In general, and I know that generalizing is risky, Americans and Western Europeans find the bitter taste to be very unpleasant. But the same taste is manna to the palates of Southeast Asians and folks from the Indian subcontinent. The Bengali-speaking community, in addition to others from eastern India, usually starts a meal with bitter-tasting curries or perhaps slices of bitter melon, salted and pan-fried. Other regions mask the bitterness so it plays a supporting role in balance with the other taste elements. Spices, herbs, and other ingredients that infuse bitterness in our curries include fenugreek, mustard, amaranth, turnip, and bitter melon, among many others.