Different foods impact on human behavior?

Yes, is the low tech answer. I have observed it in myself and many friends and family members. Food Allergies and sensitivities, toxic substances, and nutrition have a great impact on behavior. When I was eating foods I was allergic to I definitely acted differently than I did before I stopped eating them. I had a dramatically different, clearer thinking process and different perspective. My family can confirm this! Then there is the case of female hormonal imbalances. Getting the nutrition can make a difference in a woman's PMS symptoms, just as eating the right things can improve them.