Dates are an amazing source of glucose, fructose and sucrose, which is why they are ideal when it comes to boosting your energy or improve athletic performance in a healthy way. At the same time, polyphenols in dates can ironically lower a spike in the blood's glucose levels after eating starches, meaning your blood sugar won't be on a roller coaster after utilizing them to energize your exercise. Try Papa Steve's No-Junk Bars  -  we especially love the apple cinnamon ones for a pre-workout boost.