Choose dog food specially designed for medium/small dogs, such as: Bernardo Pure, Silica, Royal Canin, etc., which are all dog food brands with good online reviews. In addition, different brands of dog food contain different ingredients. Owners can choose dog food suitable for their pets based on the physical condition of their dogs. Generally, it is recommended to feed Teddy between 2 and 5 months old with puppy food, and can be replaced with normal dog food when he reaches adulthood.