According to some studies, what we eat and when we eat it plays a significant role in headaches and migraines. Overactivity of the arteries in the head has been found to cause pain, and highly fluctuating blood sugar levels can cause these vessels to spasm in susceptible people. Caffeine, a compound commonly found in coffee, tea, and chocolate; has been linked to headaches. Researchers believe that people who are prone to headaches and migraines may be sensitive to the effects of caffeine. Limiting drinks or foods containing caffeine is generally recommended.
Food additives and naturally occurring food chemicals can also trigger a headache in some people. If you suspect that your headaches may be linked to your diet, it is important to seek medical attention so that your sensitivities can be properly diagnosed.