Dr. David Benton measured the IQ of 90 schoolchildren and then gave 30 of them a high-dose multivitamin, 30 a dummy pill and 30 nothing. After eight months he re-evaluated their IQ. Only those children on the vitamins had a staggering increase in their non-verbal IQ of over ten points! Lancet, VOl 1(8578), 1998, pp.140-3