My father suffers with dementia. Is there any vitamins that we can give him instead of medicines that can help him?

I am sorry but dimentia is a downward spiral and unfortunately does not improve. You can give your dad vitamins, supplements but in the long term it won't do much good. What you can do is memory games with him and get other family members involved, keep his mind active, work on it. I find with my clients that usually helps. Card games are fun; if he ever played poker or euchre, rummy that is a good way to keep the memory flowing.

I wish you well.

Tick