system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does food that is nutritionally bad for you taste so good?

Fast food, candy, pizza, etc. Not saying that healthy food tastes bad, but something about unhealthy foods make them addictive to eat.
gpt
Our taste buds evolved under vastly different conditions than we live in today. Calories, fats, sugars are essential for survival in a harsh environment, but most of us don't live in a harsh environment anymore so we need less of that stuff. Our taste buds don't know that though.