Canadian Brand. Get your dog back to feeling their best with Marshmallow Root Powder! This all-natural superfood is packed with properties known to help reduce inflammation throughout your dog's body. It may help alleviate symptoms of gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), and ulcers, giving them the relief they need. With Marshmallow Root Powder, you can give your dog the soothing and protective digestive tract they deserve!