Everybody reacts differently to different vitamins/supplements, and I know there are some people here who have good luck with a few of them. I recently got a bottle of the simple amino acid supplement glycine and have been trying it for a few days. This is the first thing like this I've tried that had a strong positive effect. It very quickly produced a feeling of being more alert and able to concentrate. So far that seems to be continuing, but I'm worried it will wear off eventually. I've been trying the 1000mg capsule three times a day. A whole bottle is only $7 so it might be worth a try to see if it helps you.
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