I was specifically told to take Vitamin D by three different doctors. They didn't check my blood level, but they said deficiencies are far more common than had been thought.

Pushing Vitamin D seems to be in vogue, right now. Years ago, it was Vitamin C.

I have taken a piece of paper and written all the vitamins down in one column. Then I write the recommended intake of each vitamin in the next column. Then I buy supplements that provide all the values indicated. Some vitamins are toxic, if you take too much. So I put a notation about that next to any vitamin that needs that warning. I would go by Federal Government Recommendations, unless I read a convincing argument to do something a little different.

Before I went into all this detail, I did the following: Each morning I took one multivitamin and one high potency Vitamin B complex tablet (that might also have extra Vitamin C in it.) My dietary habits aren't perfect, so I figure I need the insurance.

When I am very depressed, I neglect to take my vitamins. When I am in decent spirits, I do take them. That makes it hard to tell what is doing what. I am starting to think that failing to take my vitamins, when I start getting depressed, could be a factor in why my depression snowballs. I am now really trying to make myself be consistent.