Reports emerged in the press this week that consumption of Marmite™ might help prevent or delay the onset of dementia. It appears that these press reports may have been based on no more than an unfortunate misunderstanding, although this did not stop the story spreading like wildfire.
The following NHS Choices Behind the Headlines critical appraisal sheds some light on the subject:
Reports that Marmite prevents dementia are laying it on a bit thick. London: NHS Choices; Behind the Headlines, April 5th 2017.
This relates to:
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Smith, AK. Wade, AR. [and] Penkman, KE. [et al] (2017). Dietary modulation of cortical excitation and inhibition. Journal of Psychopharmacology. March 1st 2017: 269881117699613. [Epub ahead of print].