How can having healthy probiotics in your dog prevent your dog from obsessively licking his toes?

Candida Albicans is a yeast in the intestinal tract that feeds on sugars and starches that come from grain and cause yeast fungal infections in areas of the body that build up moisture, like between the toes. Rapid changes in diet, environment, antibiotic use and stress can disrupt intestinal flora leading to Candida over-growth. Good probiotics supported by prebiotics, reduce Candida populations. All Fido-Vite products contain probiotics that are difficult to deliver in kibble.

https://www.ncbi.nlm.nih.gov/m/pubmed/27087525

https://www.ncbi.nlm.nih.gov/m/pubmed/28186660/