Have you awakened in the morning with a headache or feeling like you have a hangover, but you did not consume any alcohol the previous evening? Your headache could possibly have been triggered by something you ate or drank. A chemical in food called tyramine could be the culprit.
The tyramine connection to headaches was discovered when antidepressants such as MAOIs hit the market. MAOIs block an enzyme that helps to break down tyramine in the body. When this happens it can boost blood pressure and cause headaches and nausea when tyramine accumulates in the body (Reedy, 2012).
Foods and beverages that may trigger a headache:
Aged, dried and fermented meats and fish (pepperoni and salami)
Aged cheeses (Brie, cheddar and provolone)
Beans, sauerkraut, pickles and olives
Foods that contain MSG, nitrites and sulfites
To read more on this topic, click on the following link
Reedy, S. (2012, December 18). Why that banana or onion might feel like three martinis. Retrieved December 19, 2012, from Wall Street Journal Online: http://online.wsj.com/article/SB10001424127887324677204578185404253745608.html