too good to be true

i bought some vitamins in the US called Life's DHA energy Multi. I took one and my brain fog cleared up. I also couldn't sleep. It seemed like a a typical caffeine reaction and sure enough, caffeine was listed in alphabetical order along with the vitamins. I thought it was the DHA making me clear headed and energetic and was busy googling other "brain supplements" I could try. Turns out it was just caffeine.

Caffeine creeps in to all sorts of things it seems.