Does coconut oil help dog breath? Best answers. Coconut oil helps boost the digestive and immune systems, improves metabolic functions, reduces bad breath, and improves the appearance of your dog's skin and coat just to name a few. Add coconut oil to your dog's food or use it to brush your dog's teeth. FAQ. =I Does rawhide dissolve in a afghan hounds stomach? No, rawhide does not dissolve in the dog's stomach. In fact, the opposite is true the rawhide swells up. Far from being ...