hi there i don't know much about those options, but i did find that my ability to stay on track was improved by taking ginkgo biloba.
my worst brain issues occurred when i was low on two things: magnesium and zinc. i don't have lab records to support the magnesium deficit, but i do in the case of zinc, and it was bad.
zinc is important to brain function, to the eye, and the impermeability of the intestinal tract.
zinc supplementation hasn't been found to do much for healthy folk in terms of improving cognitive function, but i wouldn't say that descriptor necessarily applies to us! and i haven't had those brain issues since i started taking zinc. you don't want to take too much, however. the brain needs a careful balance and too much is as bad as too little. i STILL haven't done my follow-up lab work to find out where my zinc is at. i've been taking 0 - 50 - 100 mg per day for some time. i've heard a wide range of numbers regarding safe upper limit. i think 40-50 per day is okay provided you're not doing a short term therapeutic boost. my doc had put me on 100 per day to address the deficiency condition.
http://www.sciencedaily.com/releases/19 ... 075613.htm