[header] How to give cats nutritional supplements [title] Assess your cat's health. [step] If you are considering giving your cat nutritional supplements, it is important for you to understand your cat's overall health. This assessment should be done by a veterinarian. 
Having an overall assessment will allow you to make decisions about what supplements the cat does, and does not, need. [substeps] A good time to get a thorough understanding of your cat's overall health is during their annual veterinary exam.