About the data
Every number on this site comes from a named source, and every drink page shows when it was last checked.
Sources
- Brand product pages and labels: 210 drinks.
- USDA FoodData Central (Branded Foods, public domain): 82 drinks. Caffeine for these comes from the brand where it publishes one.
- Open Food Facts, a free, open, collaborative database of food products: 136 drinks.
How we handle gaps
If a brand doesn’t publish its caffeine, the drink page says “Not disclosed” rather than showing an estimate. A small “?” next to a caffeine figure means it hasn’t been confirmed from the can yet. Brands reformulate, so always check the label on the can in your hand.
Open Food Facts data and license
Some facts on this site come from Open Food Facts and are made available under the Open Database License (ODbL). You can download those records, as we use them, here:
Download the Open Food Facts records (CSV, 136 drinks)
The download is licensed under the ODbL 1.0. Credit: Open Food Facts contributors and Energy Drink Central.
Health note
This site is for information, not medical advice. The FDA cites 400 mg of caffeine a day as an amount not generally associated with negative effects in healthy adults; people who are pregnant, sensitive to caffeine, or taking certain medicines may need less. Energy drinks aren’t recommended for children.