I have an 8 year old extremely over weight bulldog. She also suffers from acid reflex. I am looking into changing her food. Would it be helpful for her digestion to try grain free and gluten free food?
Undoubtedly, a grain-free, gluten-free dog food would help her digestion.
Acid reflux in dogs is usually congenital, caused by a condition known as hiatal hernia. A hiatal hernia is a protrusion of abdominal contents into the chest cavity through the esophageal hiatus, a natural opening through the diaphragm. Younger pets are at greater risk of developing this condition because their esophageal sphincters are still developing. Your older dog may have an undiagnosed hiatal hernia and that should be checked out by your vet.
Many holistic veterinarians recommend starting dogs with acid reflux on a low-residue, balanced, home-prepared diet consisting of cooked bland veggies and meats to avoid any underlying food sensitivities. Eliminating allergenic ingredients like gluten, rice, soy, and all genetically modified (GM) foods also seems to help. Additionally, getting rid of all preservatives, colorings, additives, and emulsifiers used in commercial dog foods is recommended.
I would suggest looking at the grain free food here: http://www.dogfordog.com/grain-free-with-ocean-fish-salmon-14-lbs/
The link I gave you shows you all the natural ingredients and tells you how to transition your dog safely from her old dog food to the new food.
I hope this helps.