Rating Newest Oldest. Best Answer: Immune system Boosting dogs immune system Boosting the immune system for proper working biochemical interactions is important to your dogs wellness. The immune system is persistently protecting the body from parasites, bacterial, fungal, or virus-infected cells.ating Newest Oldest. Best Answer: Immune system Boosting dogs immune system Boosting the immune system for proper working biochemical interactions is important to your dogs wellness. The immune system is persistently protecting the body from parasites, bacterial, fungal, or virus-infected cells.