People use ACV for many reasons. Some feel ACV lessens flea and fly problems when added to a dog's diet. Others use ACV to acidify the urine to prevent alkaline crystal formation. When using ACV, add it either to the dog's food or water. To acclimate your dog to ACV, use a bit of honey with the ACV, gradually eliminating the honey.
Some people report health problems associated with plastic dishes.
For that reason, we recommend either stainless steel or glass dishes. Many people add vitamin C to their dog's diet for a variety of reasons, including joint integrity and immune system support. Dose with vitamin C to bowel tolerance. If your dog has diarrhea, back off the dose a bit and try increasing by a smaller increment, if you so desire.