Video: Why does toothpaste make orange juice taste awful?

It's happened to many of us: Half asleep in the morning, you finish brushing your teeth and reach for your daily glass of orange juice.

After taking a big swig, you spit it back out, making a face like you've just chewed on a lemon. Turns out, a specific chemical in your toothpaste is responsible for that nasty taste.

Provided by American Chemical Society