Caffeine and Migraines: Understanding the Connection

Migraines are a common neurological condition that can cause severe, recurrent headaches that are often accompanied by other symptoms such as nausea, sensitivity to light and sound, and visual disturbances. While there is no cure for migraines, there are many strategies that can be used to manage and prevent them.

Caffeine is a well-known substance that can have both positive and negative effects on migraines. For some people, caffeine can be a helpful migraine treatment, while for others it can actually trigger or exacerbate migraines. In this article, we will explore the relationship between caffeine and migraines and provide useful tips for anyone looking to manage their migraines.

How does caffeine affect migraines?

Caffeine is a stimulant that can have a profound effect on the brain and the body. When consumed in moderation, caffeine can help to improve mood, alertness, and cognitive performance. It can also cause blood vessels to constrict, which can help to reduce the pain associated with migraines. This is because migraines are thought to be caused by the dilation of blood vessels in the brain.

However, too much caffeine can have the opposite effect and actually trigger or worsen migraines. This is because caffeine can cause the blood vessels in the brain to dilate, which can increase intra-cranial pressure and trigger a migraine.

How much caffeine is too much?

The amount of caffeine that is needed to trigger a migraine can vary from person to person. Some people may be more sensitive to caffeine than others, and may experience migraines even with small amounts of caffeine. Others may be able to consume larger amounts of caffeine without any negative effects.

As a general rule, it is recommended that people with migraines limit their caffeine intake to no more than 200mg per day. This is roughly equivalent to one 12-ounce cup of coffee, two cups of tea, or one can of soda.

Using caffeine to treat migraines

While caffeine can trigger migraines in some people, it can also be an effective treatment option for others. This is because caffeine can help to constrict blood vessels, and when combined with other medications such as aspirin or acetaminophen, it can be a powerful migraine treatment.

There are several over-the-counter migraine medications that contain caffeine, such as Excedrin Migraine and Anacin. These medications can be effective for treating mild to moderate migraines, but should be used in moderation to avoid overuse headaches and rebound migraines.

Preventing migraines

Preventing migraines is often the best course of action, and there are many strategies that can be used to reduce the frequency and severity of migraines. Here are some tips for preventing migraines:

1. Keep a migraine diary

Keeping a migraine diary can be a helpful tool for identifying triggers and patterns associated with migraines. In your diary, record the date and time of your migraines, what you were doing at the time, what you ate and drank, and any other relevant information.

2. Avoid migraine triggers

Some common migraine triggers include stress, certain foods (such as chocolate, cheese, and processed meats), alcohol, and changes in sleep patterns. If you can identify your triggers, you can take steps to avoid them and reduce your risk of migraines.

3. Maintain a healthy lifestyle

Maintaining a healthy lifestyle can help to prevent migraines. This includes getting regular exercise, staying hydrated, getting enough sleep, and eating a healthy diet.

4. Take migraine prevention medications

There are several medications that can be used to prevent migraines, including beta blockers, anticonvulsants, and antidepressants. Talk to your doctor about whether these medications are right for you.

5. Try relaxation techniques

Stress is a common migraine trigger, so practicing relaxation techniques such as meditation, yoga, and deep breathing can be helpful in preventing migraines.


Caffeine can be both a helpful and harmful substance for people with migraines, depending on the amount consumed and the individual’s sensitivity to caffeine. Understanding the relationship between caffeine and migraines can help people manage their migraines effectively, whether through limiting caffeine intake, using caffeine as a treatment option, or preventing migraines through lifestyle changes and medication. By taking a proactive approach to managing migraines, those who suffer from this condition can improve their quality of life and reduce the frequency and severity of migraines.


What is the link between caffeine and migraines?

Research has shown that caffeine can trigger migraines in some individuals. However, caffeine can also relieve the pain and symptoms of a migraine in others. It is important to monitor your caffeine intake and determine what works best for you.

How much caffeine is safe for individuals with migraines?

There is no set limit for how much caffeine is safe for individuals with migraines. It is important to monitor your caffeine intake and determine your own personal limit. Generally, it is recommended to limit caffeine consumption to no more than 400mg per day.

Can cutting out caffeine completely prevent migraines?

Cutting out caffeine completely may help prevent migraines in some individuals. However, sudden withdrawal from caffeine can also trigger migraines. It is important to gradually reduce your caffeine intake if you decide to cut it out completely. Consulting with a healthcare professional can also be helpful in creating a plan to manage migraines.


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3. Jansen, S., Brito, M., Alves, N., Medeiros, F., & Figueiredo, M. (2020). Caffeine consumption and the incidence of headache: A systematic review and meta-analysis. The Journal of Headache and Pain, 21(1), 129. doi:10.1186/s10194-020-01213-3