It turns out Coca-Cola and Red Bull have less caffeine than you may think. We looked at the maximum amount of caffeine you should have each day, according to the Mayo Clinic and found out which ...

No other type of caffeine works. — Jessica C. Getting even more niche, a Coke from McDonald's seems to have extra appeal: A McDonald’s Coke will almost always quell my sinus migraines.

As pointed out by Niraj, "Coke is not just high in high fructose corn syrup, but it is also packed with refined salts and caffeine." Coca-Cola has acknowledged the high sugar content in its ...