The verdict is out on whether coffee is the healthiest way to start the day or not. Some studies show that consuming caffeine can elevate the stress hormone, cortisol. Others say coffee has health-producing benefits and boosts the body’s metabolic rate which helps burn fat. Ultimately, this is a choice that only you can make. But whether you prefer the traditional hot coffee or a refreshing cold version, the most important thing to remember is that you have this easy recipe available for all the coffee lovers in your life.