Caffeine is the world’s most widely consumed psychoactive substance, and for many people with ADHD, it’s more than just a morning ritual—it’s a daily tool for focus. In fact, studies show people with ADHD tend to take more caffeine than the average person! But does it really help ADHD symptoms, or is that just a popular belief?
The answer: Caffeine has no effect on ADHD symptoms when compared to a placebo. It might feel like it is helping, but statistically, it seems to have little to no effect on your ADHD.
How caffeine might affect ADHD
There may be a few reasons we currently find no statistically significant impact of caffeine on ADHD, even though people report feeling like it is helping their symptoms.
- The studies were completed on caffeine alone. Many people drink their caffeine with compounds that might help ADHD, such as L-theanine in matcha and other green teas.
- Caffeine is helping parts of ADHD while making other parts harder, which could lead to a zero-change. For instance, it could help you focus for a few hours, but in return you are more impulsive or your brain moves quicker.
- Caffeine can negatively affect sleep quality for some people. This can make ADHD worse, canceling out any positive effects of caffeine.
- People with ADHD are more likely to be addicted to caffeine (drinking more than 400mg per day and feeling unable to reduce). This could mean that the people in these studies are already consuming more caffeine than normal, so the interventions might not be as effective.
In truth, the answer to “does caffeine help ADHD” is complicated: It might help some people in certain circumstances, but on average it isn’t making your symptoms better.
This may be confusing—after all, caffeine is a stimulant, right? Shouldn’t it work like a natural stimulant? The difference is that caffeine stimulates different aspects of your brain than ADHD medication. To learn more about caffeine and the brain, read this article.
So, while it may not help, it may not hurt either. The best thing to do is to learn how to listen to your body and the cues it is sending you. I teach you how to do this in the ADHD Nutrition Manual linked here: Even though people with ADHD have harder times understanding their body, it is possible to improve this connection, and it will reduce your symptoms in the long run.
