toothpaste + fruit = yuck; why?

Question

why does anything fruity taste really gross after you brush your teeth?

Answer 1

HELLO,
THE FRUIT TASTES SO BAD BECAUSE THE FLUORIDE OF THE TOOTHPASTE ALTERS YOUR TASTE PERCEPTION. IT'S MOSTLY ACIDIC FOOD WHICH GIVES THE WORST REACTION.
THIS IS WHY YOU MAY WANT TO WAIT UNTIL AFER YOU HAVE EATEN BREAKFAST TO BRUSH YOUR TEETH.