Educate yourself about pra disease
The additives and preservatives contained in low grade, commercial dog food act like toxins in your dog's body. The best dog vitamin product will include vitamins that act as antioxidants to fight off the damage that may result from repeated exposure to these substances. Otherwise, the toxins may cause long term damage to your dog's system and contribute to the development of serious health problems. Certain dog vitamins address a specific health problem, such as age related vision issues. Dogs age just as we do, and that aging process triggers health issues that are similar to those that we experience.