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.

When fatigue hits, your go-to drink matters more than you think.

A jolt of energy in a can sounds like a superpower. Crack it open, take a few sips, and suddenly everything feels sharper, faster, more manageable. That rush hits hard, and it works—until it doesn’t.

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. For most healthy adults, consuming up to 400mg of caffeine a day is considered safe - Getty According to Nichola Ludlam-Raine, a ...

Panera scrapped its Charged Lemonade after the drink, which contained as much caffeine as three cans of Red Bull, was linked to 2 deaths.

Smoothie King serves up delicious and nutrient-filled smoothies to its many fans. It also delivers one of the most caffeinated drinks on the fast food market ...

A doctor explained safe guidelines for limiting your daily consumption, whether you're drinking coffee, tea, energy drinks or ...

The energy drink industry has been under the spotlight as highly caffeinated beverages continue to surge in popularity. While energy drinks are marketed as convenient energy boosters, they are ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – Poison control centers around ...

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.

Sparkling water may help gamers stay focused during long gaming sessions, reducing mental fatigue without the need for ...