A lifelong coffee drinker, I decided that it was time to stop drinking coffee and find an alternative way to get that energy boost in the morning. I researched other products and discovered to my delight that many people substitute energy drinks containing guarana for coffee’s caffeine effects. Before I began drinking the energy drinks, I wanted to make sure that there were no negative Guarana Side Effects I should worry about. My research results were that although there are potential side effects, most do not experience them and the energy drinks, in moderation are a perfectly safe way to get my morning pick me up.