The study design isn't my favorite but the conclusions may still yield something of potential value.

note:Flax meal (ground flax seeds) is a rich-source of lignans.

"No association between dietary isoflavone intake and cognitive function was found. High lignan intake was associated with a better performance in processing capacity and speed, and in executive function..."

https://tinyurl.com/28doqp

__________________
You're officially invited to visit my natural health blog: www.healthyfellow.com