Not yet investigated
What we have so far
Twelve children, no control group, retracted in full, licence revoked. Fourteen later studies covering millions of children found nothing — and the effect on coverage has outlived all of them.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.