Hi Dr. Yildiz, I've been taking vitamin B supplements since my post-college years. I can't remember why, but someone told me they were important for ??? Now 40 years later I see taking them as more important than ever as I am prone to depression, have now had cancer, and as a result of the latter, have neuropathy in both of my feet. I also have a lousy diet. Nothing has gotten worse, so I'm just going to keep doing what I've always done. Thanks for making sense out of complex subjects!