About Us

Caffeine Informer believes that accurate caffeine information must be freely available to all.

Research shows that caffeine consumed in moderation can have some positive benefits for most people.

However, many others experience negative effects, including withdrawal symptoms, when reducing caffeine intake.

We believe manufacturers must label caffeine amounts accurately, and tighter regulation of caffeine is needed.

Our mission is to inform and educate the consumer about the risks of caffeine and provide a comprehensive and accurate resource of caffeine amounts.

“Great site for real and useful facts and info on caffeine and caffeine-containing products”
– Dr. Mike Fenster

“The future of medicine is patients taking control of their health… Caffeineinformer is an innovative site that I believe will have many applications going forward.”
-Dr. Grayson Connors


“Thank you, thank you, thank you for such a fantastic website. My caffeine-sensitive body appreciates it greatly!”
– Jacob
“…wonderful website & very helpful caffeine information. Keep up the great work !!”
– Kevin
“having just given up caffeine after 30 years due to high blood pressure, your site is really helpful, so thanks”
– Mark
“…beyond the exceptional data driving this site, the layout, interface, and usability of this site is top notch.”
– David
“Lots of good unbiased information here. Anyway just wanted to say thanks and keep up the good work.”
– John
“Thank you so much for your site – very helpful – I had no idea there was caffeine in A&W Cream Soda, and you provided a handy source as to just how much there was.”
– Andy
“I really wanted to say a big thank you for making this site…”
– Mark
“I found your site today and I just want to say thank you. Great work very very helpful !!!!”
– Theo
“I love your site, by the way! One of the best I have seen.”
– @MyDomesticDish
“What an amazingly informative site. Thank you for putting this together.”
– Beatrue
“Just wanted to say that I love this site. I just managed to waste an hour looking at different caffeinated beverages.”
– K Steube
“Very well-done site and it works well on mobile, which is great…”
– Ahliana
“A great bird’s eye view of different caffeine content among drinks. Thanks for making this site!”
– Diana

Got a Question?

How accurate are the caffeine amounts?

See how we find caffeine amounts.

Aren’t caffeine amounts supposed to be listed on drinks?

The US FDA requires caffeine to be listed on the ingredients list, but as caffeine is not a “nutrient”, the exact amount does not have to be listed (FDA). That is why we maintain the caffeine database.

Is caffeine safe?

In 1958, the FDA placed caffeine on its GRAS (Generally Recognized As Safe) list. It suggests a dosage of no more than 400mg per day. Most health authorities believe pregnant women should consume no more than 200 mg of caffeine daily.

Are there limits on how much caffeine is allowed in beverages?

The FDA rules are outdated and never anticipated the proliferation of highly caffeinated products currently available. There are no strict limits – unlike other countries, such as New Zealand and Australia, that limit caffeine amounts to 32 mg per 100 ml of drink.

Does this site have a bias in any way?

We aim to present both the pros and cons of caffeine consumption without any implicit bias. To see more about our terms, mission, and background – see our Terms of Use.

Can caffeine really kill you?

Yes, it can. We made the Death by Caffeine calculator as a fun tool to highlight the levels of caffeine in drinks. It is also a serious reminder of the toxicity of caffeine in higher dosages. People have died after overdosing on caffeine pills, and over-consumption of high-caffeinated energy drinks has made headlines over the last few years.


Ted Kallmyer B.A., M.Ed. ISSA Certified Specialist in Fitness Nutrition
Ted is our caffeine expert and previous to working at Caffeine Informer spent 12 years as a biology/ health educator for the public school system. He is a healthy eating and exercise advocate and loves educating people about what’s in their food and how to live healthier lives. Ted is based in Oregon, USA and is a certified sports nutrition coach for Healthyeater.com