Medically reviewed by Patricia Mikula, PharmD Key Takeaways Paraxanthine is a metabolite of caffeine that may cause less ...

A staggering 94% of Americans use caffeine, 64% of whom do so on a daily basis. It’s the energy enhancer people start their ...

Paraxanthine, a compound the body naturally produces when it breaks down caffeine, is starting to appear in energy drinks and even some coffee products as a potential caffeine alternative.

Pre-workout supplements are popular, but new research shows that they are connected to a poor night’s sleep. Here’s what you ...

Add Yahoo as a preferred source to see more of our stories on Google. Ever feel like you’ve had one cup too many? Of coffee, that is. Or, honestly, the first cup might already feel like overkill for ...

It’s a popular one, too.

There are many types of dietary supplements for weight loss, most of which contain multiple ingredients, such as caffeine and choline. However, there is a lack of evidence to support their efficacy. A ...