Why is my dog's skin pigment turning purple??

My shih-tzu/dachshund mix has always had light pink skin under his tan fur, but it's now almost entirely mauve colored, with just a few pink blotches left. Otherwise he's healthy %26amp; happy. New in his life in the last 3 months: Nutro Lamb Meal %26amp; Rice Formula, which seems to be better for his skin because it isn't all wheat %26amp; corn like most foods, but does list beet pulp, potassium chloride, dried kelp, zinc sulfate, ferrous sulfate, copper proteinate, niacin, manganous oxide, and calcium iodate among ingredients; Frontline; neutered 2 months ago; and he's getting more exercise since we adopted a second dog with whom he plays many hours a day. Has anyone heard of a dog's pigment changing because of any of these things? And will it--or can it--change back?? Thanks!

Why is my dog's skin pigment turning purple??
Wonder if it is the beet pulp? I know beets will turn your tongue purple, also discolor a human infant's stool. First time I fed my oldest son strained beets, I like to died when I opened his diaper; I thought he was bleeding internally!


You might try switching to a different dog food, one that has not been affected by the recall, and that does not contain wheat, corn, or beet pulp; for example:


Canidae


Wellness (made by Mother Hubbard)


Royal Canin


Solid Gold


Eagle Pack


Flint River Ranch


My dachshunds LOVE the Wellness, they are 8-9 years old so I feed the senior / weight management formula. It contains chicken, brown rice, barley, oats, tomatoes, apples, blueberries, spinach, carrots, sweet potatoes. Dachsies are notorious fruit and veggie eaters...
Reply:thats soo weird!! i have a shih-tuz (but a pure bred) her skin is blue !! but the vet said, thats normal for shih-tuzs. soo dont worry !!
Reply:i dont know but it doesnt sound to bad. maybe you should take it for a checkup to the vet.