Question: what is the best vitamins for german shepherd?
Answer:  Glucosamine Hydrochloride. Glucosamine hydrochloride is the most popular joint supplement given to large dogs like German Shepherds. ... 
 Chondroitin Sulfate. ... 
 Avocado/Soybean Unsaponifiables (ASUs) ... 
 Omega-3 fatty acids. ... 
 Methylsulfonylmethane (MSM) ... 
 Green-Lipped Mussels (GLM)