Even vitamins cause cancer[1]. My personal guess is that it is far more harmful to you to worry too much about what you eat, than eating a little bit too much of something "bad", see Nocebo-effect[2] and other psychosomatic factors.

[1] https://www.sciencebasedmedicine.org/vitamins-and-cancer-ris... [2] https://en.wikipedia.org/wiki/Nocebo