Sugar-free coffee gives you taste and benefits of coffee with fewer calories.Green tea, on the other hand, is a healthy drink because it is a decent source of antioxidant polyphenols.A refreshing and calorie-safe beverage, green tea works as a good substitute for unhealthy beverages regularly consumed in today's lifestyles.So, now that both sugar-free coffee and green tea are healthy, we wonder which is healthier. Let's take a look...