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

Kim Kardashian is now the face of a caffeine-free energy drink. Instead of containing caffeine, Update includes paraxanthine, a compound the body naturally produces when it breaks down caffeine.

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.

Add Yahoo as a preferred source to see more of our stories on Google. Some say pre-workout allows them to plow through their high-intensity fitness routines, even when they’re initially feeling “meh” ...

Butalbital 50mg, acetaminophen 300mg, caffeine 40mg. Butalbital, a barbiturate, is a GABA A receptor agonist and may inhibit excitatory AMPA receptors. Acetaminophen is a non-opioid, non-salicylate ...

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 ...

Although green tea extract is often linked to health benefits, high doses may affect blood sugar in unpredictable ways and ...

In the competitive world of endurance sport, marginal gains matter. From advanced footwear technology to precision hydration strategies, athletes are constantly refining their performance approach.