Pomegranates: what nutrient in this fruit would benefit the nervous system?

I have noticed a reduction in anxiety symptoms the day after eating a pomegranate with dinner. There is some autism in the family DNA, w/allergies to wheat, and wheat-related additives of forbidden mention on this site cause mouth rashes and viamin-B deficiency symptoms I have never heard of in anyone else. Food additive (previous questions pulled) sounds like ehmm ess ghee. I seem to benefit from a wheat, dairy and sugar-free diet.