6-MSITC in wasabi increases memory by 18% in over 60s
mdpi.com
mdpi.com
After three months, the treated group registered "significant" boosts in two aspects of cognition, working (short-term) memory, and the longer-lasting episodic memory, based on standardized assessments for language skills, concentration and ability to carry out simple tasks. No improvement was seen in other areas of cognition, such as inhibitory control (the ability to stay focused), executive function or processing speed.
Subjects who received the wasabi treatment saw their episodic memory scores jump an average of 18%, Nouchi said, and scored on average 14% higher than the placebo group overall.
This company makes wasabi.
[Edit] According to this business's site, not much (how factual their marketing copy is, I have no idea):
"Tube wasabi offers very little functionality Hexaraphane can be efficiently ingested when roots of raw wasabi are grated. With room-temperature type tube wasabi, little 6 - Methylsulfinyl hexyl isothiocyanate (Hexaraphane(6-MSITC)) is consumed because other ingredients such as horseradish, preservatives, and additives are included with the wasabi."