Cluster Headache; Headaches; Tension Headache 

Glycine max; Glycine soja; Soy Isoflavones; Soy Protein; Soy Protein Extract; Soya; Soybean; Soybeans 

A headache is a condition of mild to severe pain in the head; sometimes upper back or neck pain may also be interpreted as a headache.

Soybeans (US) or Soya beans (UK) (Glycine max) are a high-protein legume (family Fabaceae) grown as food for both humans and livestock. The word soy is derived from the Japanese word shoyu (soy sauce/soya sauce).

Headache as related to Soy