Dr Emma Derbyshire champions the consumption of water by school children as an aid to their cognition performance, memory and visual attention.
She should, though, be aware that scientific studies in China have recorded a negation of all those personal assets, plus a depression in IQ scores of up to 19 points among children exposed to state-fluoridated water.
As a result, China has stopped all its fluoridation schemes.
The condition if its children's teeth - the alleged motive for the schemes - comes second to their intellectual development.
Who would argue against that? Ask our Health Secretary, Andy Burnham.
Bernard J Seward