Now, a report from the world's oldest and most prestigious medical journal, The Lancet, has officially classified fluoride as a neurotoxin - in the same category as arsenic, lead and mercury. The news was broken by author Stefan Smyle, who cited a report published in The Lancet Neurology, Volume 13, Issue 3, in the March 2014 edition, by authors Dr. Phillippe Grandjean and Philip J. Landrigan, MD. The report, which was officially released in 2014 and published in the journal, can be viewed by clicking here.