No berries, no wine, no tomato sauce.
The acidity erodes a layer of your enamel. Hello, yellow teeth.
White wine with tomato sauce is the worst. Wine opens up the pores of your teeth and then the tomato sauce stains them.
Green juice and smoothies:
If it can dye your clothes then it can dye your teeth too.
The chemicals that treat your pool getting all in your teeth and stuff. Gross!