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Why has my black cat’s coat has turned red?

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  1. Holly

    Very interesting. Years ago, before I knew what should, and shouldn’t be in my pet’s food, I had a lab/golden mix whose black coat would always turn a reddish color in the summer. I thought it was normal.

  2. Jean M. Casey

    Black coats can turn reddish with too much sunlight. Owners of pure bred show cats NEVER let their cats lie in the sun because the color of the coat can change.

  3. Lisa P.

    It is unusual for this to be for a kitty, to have low thyroid because they tend to go hyperthyroid, but when we treated our kitty for hypothyroid, her black fur that had turned brownish, turned back to shiny black. You will have difficulty finding a Vet who understands this, however. She has Adrenal issues, as well as thyroid issues. But she is feeling much better now that we have her on the right hormone balance! And she is 16 years old.

  4. Maxine Schmidt

    I am under the impression that this goes for dogs as well. Please correct me if I’m mistaken. I have a black Standard Poodle this was happening to a few years ago, I changed brands from from Natural Balance to Champion’s Acana and seemed to resolve the problem. Initially I thought she might be a “blue” in color, but her coat went back to black after the change. This may have been coincidence, but I thought it worthy of an opinion..

  5. Christine

    My vet told me that my black cat’s coat turning reddish can also be attributed to his kidney disease. He eats a high protein diet but also spends a lot of time lounging in the sun in his outdoor catio.

    1. Marie

      I’d go with what Dr. Cathy says over your vet’s take on coat color change. Dr. Cathy told me, when two of my meat-eating cats showed elevation in kidney values (specifically creatinine) that these normal kidney parameters are set for kibble eaters. In other words, if you take, say, 1000 cats eating just kibble, those cats create the range for “normal” kidney ranges. Meat eaters will almost always be above these so-called normal ranges. At least that’s my understanding of it, and my cats with some kidney elevation are definitely not in any sort of kidney distress. In fact, they’re nicely plump and active – no signs of any kidney dysfunction whatsoever.

  6. Linda Chiolero

    RI am very sorry to learn that Dr. Cathy has retired from private practice. I have some friends in central Indiana who drove 1-1.5 hours to see her for her expertise. I have followed her via Facebook and other online sites for the past couple of years. I wish her much continued success in her future endeavors.

  7. Jim

    I had a rescued black kitten who was clearly dying of malnutrition: not growing, pretty much no body fat and severe muscle wasting, whiskers broken off, and his coat was dull, dry, and orangey-red. Other kittens raised on the exact same kitten diet had thrived. Fecal tests were negative. But one vet still thought there could be a parasite involved, and suggested trying a dose of Droncit before resorting to an expensive PCR test. Result: The kitten promptly began to thrive and today is a magnificent adult cat with a glorious shiny black coat and long luxuriant whiskers. Apparently this kind of malnutrition can be caused by a heavy parasite load, not just by diet (at least in young kittens).

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