system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are certain foods (like sugar) nearly universally pleasing to the human mind, but other foods can be delicious or disgusting to different people?
gpt
Prehistoric humans didn’t have a ton of options for food because there was no agriculture- most of the fruit and veg we eat are created by humans. And spices def weren’t a thing. 

So we love fat because when they had a successful hunt they had to gorge themselves- get as many calories as possible since there was no guarantee of their next meal. Same with sugar- when fruiting plants were in season and ripening they had to eat as much as they were physically able - they had limited time and many of the nutrients weren’t available to them any other time of the year. 

That’s why it’s super easy to plow through a bag of chips or a pint of ice cream but not over eat other foods that might be tasty but not sugar or fat heavy. We’re literally genetically engineered to binge on fat and sugar.