According to a study published in the Japanese journal Acta Medica Okayama, vitamin B-6 and iron are important cofactors in the body’s production of serotonin. Researchers found that individuals who came to the Emergency Department with panic attacks and/or a hyperventilation attack were significantly lower in serum B-6 and iron levels than in a group of volunteers. You can read the study here.
A 2016 article in Healthy Holistic Living provides additional information, including some interesting brain imagery. Check out their article here.