Does temperature really matter? Learn how caffeine, antioxidants, and acidity compare—and which option may be best for you.

In this method, caffeine is extracted from tea. The type of tea that is used isn't very important (as long as it is caffeinated). The amount of caffeine recovered is small, but this is for fun and not ...

Because caffeine is water and fat soluble, it’s able to exert its affects on many parts of the body. andrew crotty/ Shutterstock It’s recommended that adults consume no more than 400mg of caffeine a ...

Guarana contains more caffeine than coffee, but both substances have health benefits. Consuming too much caffeine from any source can cause unwanted side effects. Guarana and coffee contain different ...