A split walnut even looks a little like a brain
Maybe Herman Cain was on to something when he was recommending black walnut ice cream. A study published in the British Journal of Nutrition (epublished ahead of print September 19, 2011), looked at the effect eating walnuts had on memory, mood, and on verbal and non-verbal reasoning. The subjects of the study were 64 college students who were divided into two groups and were given either walnuts or placebo for eight weeks. After a six week washout period, the groups were reversed and the original placebo group was given walnuts for eight weeks and vice versa. The walnut supplemented diet increased inferential verbal reasoning by 11.2%. None of the other parameters were affected.
