system
A chat on subreddit /r/NoStupidQuestions
human
Sugar. Recently started watching my sugar and oh my gooood. Canned fruits? Sugar. Whole wheat bagels? Sugar. Protein bars? Sugar. I was easily getting 100% my daily sugar without knowing and often passing it. People also drink soda like it's nothing when it has almost two days worth of sugar in it. 

Carbs fat and calories are bad too, but I feel like people severly underestimate how much sugar they intake because they think only candies have lots of sugar.
gpt
Pop is a really hard one for me (and probably others) to cut out. I've been better in recent times but growing up I would drink like 4 or 5 cans a day. The thing that sucks is you think "oh, maybe I'll drink some juice since it's slightly better than pop." Nope, they get ya with that huge amount of added sugars to something that's already has sugar in it