system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does food that is bad for people taste good, while food that is healthier tastes worse?
gpt
Our bodies instinctively like foods with high energy contents: fats, oils, and sugars. It's a survival mechanism that isn't really helpful any more. Cavemen who ate animal fats and oils tended to live longer through the cold winters than the cavemen who ate kale. We've evolved to favor the foods that would keep us alive longer.