you can easily get caffeine in other sources. But caffeine is a drug like any other. I'd prefer another method of keeping alert rather then relying on drugs. Besides being a drug, caffeine causes a debilitating crash afterwards as well as raising your stomach temperature during digestion (Which isn't good), and it also relaxes the valve muscle separating the stomach from the esophagus, thus causing acid reflux and other health issues. Caffeine is not the best way to stay alert and they need to stop putting it in most if not all of our foods and drinks.