The Science of Coffee: Health Benefits, Calories & Tips

Why does coffee cause stomach pain for some while helping others live longer? From the energy-boosting effects of caffeine to the calorie counts in your favorite Starbucks drinks, explore the true impact of coffee on the body.

Close-up of a glass of a cola with a straw

Caffeine in Coke Zero

Coke Zero was released by the Coca-Cola Company in 2005 in order to garner more of the young adult male market after they discovered Diet Coke was considered a woman's drink, according to the Huffington Post.

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