Research shows that caffeine consumed in moderation can have some positive benefits to most people. However many others experience negative effects, including withdrawal symptoms when reducing caffeine intake.
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 patient’s taking control of their health and the ability for us doctors to use health trends and mobile data more effectively. 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. You provide such a helpful body of information on caffeine content and my caffeine-sensitive body appreciates it greatly!”
“…wonderful website & very helpful caffeine information. Keep up the great work !!”
“having just given up caffeine after 30 years due to high blood pressure, your list is all coming true, but your site is really helpful, so thanks”
“…beyond the exceptional data driving this site, the layout, interface, and usability of this site is top notch.”
“Lots of good unbiased information here. Anyway just wanted to say thanks and keep up the good work.”
“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.”
“I really wanted to say a big thank you for making this site…”
“I found your site today and I just want to say thank you. Great work very very helpful !!!!”
“I love your site, by the way! One of the best I have seen.”
“What an amazingly informative site. Thank you for putting this together.”
“Just wanted to say that I love this site. It’s amazingly easy to navigate, information is quickly accessible and absolutely vast for a topic that most people probably don’t care about. I just managed to waste an hour looking at different caffeinated beverages.”
“Very well-done site and it works well on mobile, which is great…”
“This is a cool site! I like the graphic design as it gives a great bird’s eye view of different caffeine content among drinks. Thanks for making this site!”
Get in Touch
Want an informed opinion regarding caffeine or caffeinated products?
Please email Ted Kallmyer for an interview or comment.
Want to advertise with us?
Please visit this page to find out how.
Want to share something with us?
You can email us here.
Got a Question?
How accurate are the Caffeine Counts?
We do our best to track down the manufacturer and persuade them to disclose the caffeine amounts. We also source material from toxicology journals that have tested caffeine in various items (for journal citations go here
). Each item in our database lists the source at the bottom of its page.
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 that pregnant women should consume no more than 200mg caffeine per day.
Are There Limits On How Much Caffeine Is Allowed in Beverages?
The FDA rules are out of date, and never anticipated the proliferation of highly-caffeinated products that are currently available. There are no strict limits – unlike other countries, such as New Zealand and Australia that limit caffeine amounts to 32mg per 100 ml of drink.
Does This Site Have A Bias In Any Way?
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.
Meet the Team
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 the food they are eating and how to live healthier lives. Ted is based in Oregon, USA and is a certified sports nutrition coach for Healthyeater.com
James manages the site and has been a writer and blogger for a number of web sites for over a decade. He also writes for the electric vehicle blog EV Rater
. He is based in New Zealand.