Yes, just like with humans, natural foods are always better for dogs.
Dog treats contain a small amount of colored dye which may not break down in the digestive system. It is possible that feeding a dog a large number of the same colored treats for a very long time might eventually change his color, as the excess dye is laid down on the hair by the dog's follicles; but if that happens, you are likely feeding your dog far too many treats.
Yes it does
yes it is bad
Yes it is a very bad idea! The chemicals in hair dye can be toxic to dogs.
I wouldnt think so
yes, if the dye is peroxide-based or toxic, it can make your dog very sick. If it's just food coloring or kool-aid, then it should not harm your pooch.
No, it's fine. I've always done it and suffered no damage by it.
blue
Yes, it's safe once in awhile and not too much.
Yes with food dye.
No,the food dye will come out in the wash.
dye in the eye will damage your eyses