"Most colas are acidic and the ones with dark pigments can cause stains," he told Newsweek. Newsweek was unable to independently verify the results of the gumfather's tests. "I recommend moderate ...

If your dog constantly licks their paws or body, their saliva can stain the fur in those spots. This often happens when they're itchy from allergies or feeling anxious. Yeast and bacteria Moist areas, ...