My cat adores Whisker Lickens treats but this past year (2014), Purina started putting corn syrup in these treats and it caused a severe flair up of yeast in my cat's ears and sinuses as corn syrup is a type of sugar. If your cat has any yeast/candida fungus problems, don't give the cat any food or treats with sugar or corn syrup or yeast in it. The cat's yeast issues will flair up and the cat will suffer. People who are giving their yeast infected cats treats with any type of sugar in it (including maltose, sucralose, corn syrup, fructose, dextrose) may not realize why their cat is suddenly scratching from the terrible itch and psychiatric problems yeast infections can cause. Cats are carnivores, there's no reason to put SUGARS in their food at all ! Sugars in their food can also caused diabetes.