There are always more vitamins you can take for health benefits; the question is what is best for you and how much do you want to spend?
One is inulin and you can add it to all your foods, and it heals the gut really well. Its a simple way to add in a vitamin.
Another is molybdenum and it also heals the gut and removes heavy metals from your body. This is also a good one to reduce die off symptoms.
As far as others you can take; there are many but I think you have enough vitamins to last you a long time.