THESE SAME PEOPLE SEEM TO HAVE HEALTH PROBLEMS TO SOME DEGREE AND IF THEY EAT ALLOT OF PINEAPPLE, THEIR TONGUE CAN LOOK LIKE THE GRAND CANYON....THE NATURAL SOLUTION IS TO EAT JUST A LITTLE EACH TIME AND BY ALL MEANS, THE PROBLEM IS ALL THE ACCUMULATED TRASH IN THE CELLS THAT IS EXITING THE STOMACH/LIVER THAT THE TONGUE IS ALSO SHOWING THEI CONDITION...SO WHAT EVER YOUR TONGUE LOOKS LIKE, SO DOES YOUR STOMACH AND LIVER AND THAT MEANS TIME TO DO BOOK I AND LET THE BODY CORRECT THE PROBLEM NATURALLY......IT IS NOT A PROBLEM CAUSED BY PINEAPPLE, BECAUSE MY KIDS CAN DRINK 1 QUART OF PINEAPPLE JUICE DAILY WITH ZERO PROBLEMS TO THE TONGUE....THE ONLY PROBLEM UP NORTH IS THE PRICE!!!!!!!!!!