Cat Supplements

My cat has a very simple diet. Only dry cat meal from Purina Pro Plan and water. No fresh chicken, no snack, no wet tuna can. No human food. No eating under or on the dinner table. She is healthy, no regular vet visit, no vaccine, no sickness. She is now 7 years old. happy and active. However I would give her supplement with multiple vitamins and minerals and liposomal glutathione.