"Tandem IQ (Ideal Quota)" trial pack of vitamins and minerals as used in the Darland High School Nutritional Supplementation and IQ trial, by Trufree Health Products (Larkhall Laboratories), London 1989-1991.

The name Tandem IQ (Ideal Quota) is another play on words suggesting the product’s ability to boost IQ. One multivitamin was to be taken every day after a meal. The inscription on the carton mentions that the same multivitamins were used in the Darland High School Nutritional Supplementation and IQ trial. To advertise the fact on the box suggests that the manufacturers saw the trial as a success. However, there is no conclusive evidence to support the claim that vitamin and mineral supplements boost IQ. The packet is shown with 'Junior Vitachieve' multivitamins (1991-244/2).