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Fun Facts About Caffeine

Learn about the different types of caffeine and evaluate how much caffeine you consume in one day.


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Caffeine is not bad, and it’s not necessary to give it up. In fact, sometimes, caffeine can be a good thing. For example, when taken with aspirin or acetaminophen, caffeine can help reduce migraines and tension headaches. Want to get the lowdown on caffeine? Here, Mahmud Kara, M.D., founder and CEO of KaraMD breaks down the biggest FAQs. 

Is all caffeine created equal? 

No, not all caffeine is created equal. Some sources of caffeine, like green tea, contain compounds such as L-theanine that can help balance out the stimulating effects or jitteriness that people often associate with other sources of caffeine like energy drinks or coffee.   

Furthermore, caffeine sources like energy drinks, sports drinks, and soda often contain other substances, like sugar or aspartame (artificial sweeteners) that have been linked to other health issues when consumed in excess. If you are going to consume caffeine within the USDA’s recommended guidelines, it is best to select cleaner sources such as black coffee or green tea. 

How much is a safe amount of caffeine per day? 

The United States Food and Drug Administration (USDA) considers 400mg to be a safe amount for caffeine consumption in adults. However, people with existing health conditions like anxiety or insomnia may feel heightened symptoms as a result of caffeine consumption. Overall, if you are unsure about caffeine, how much you should consume, and how it will affect you, it is always best to consult your medical practitioner. 

What should you do if you want to avoid caffeine but still want energy?  

Superfoods are considered superfoods because they are rich in compounds such as fiber, antioxidants, or fatty acids. They are also exceptionally nutrient dense compared to other foods. They help with increasing energy, heart health, fatigue, and more, and make a great alternative to caffeine consumption. 

About The Author

Julie is the co-founder of Well Defined and a longtime influencer and advocate in the wellness world. Along with her work at Well Defined, she is an executive recruiter and marketing specialist for Hutchinson Consulting. She is also a consultant and content strategist for numerous wellness brands. She is the former editor-in-chief and publisher of American Spa and was named a 2019 Folio Top Woman in Media in the Industry Trailblazers category and a 2018 winner of ISPA’s Innovate Award. She is also a seasoned journalist, specializing in spa, travel, health, fitness, wellness, sustainability, and beauty. She has been published in Departures,, E! Online,, Insider’s Guide to Spas, Luxury Travel Advisor, Marin Magazine, Ocean Home, Smart Meetings, Spa Asia, and Travel Agent.