Proviva Nutribiota Adults supports immune system health in your dog. Proviva Nutribiota Adults is a specific bacteria bland that normalices the conditions in the intestines by changing the local acidity of the digestive tract and releasing short-chain fatty acids. This gives dogs a leg up if they end up ingesting harmful bacteria from the enviroment. Proviva Nutribiota Adults help inhibit the growth of these bacteria by competing for the same nutrients and resources.