An energy fuel and performance booster in one - Core Energise Plus delivers our tri-blend of pure carbohydrates with a caffeine boost. The tri-blend ratio is slightly different to our Energise blend as simple carbohydrates (Dextrose and Fructose) are more efficient at delivering caffeine into the system. Past studies have shown that caffeine alters the body’s metabolism and increases the amount of blood sugar - stimulating the brain and providing more fuel for muscles. It also appears to make muscle cells contract more efficiently. A dose of caffeine in your energy fuel can boost power output by up to 6% in any activity where muscles are not working flat-out i.e. in regular training conditions. Caffeine makes no difference to muscles when they are flat out but is an effective booster when training, and can really help to improve your overall endurance over time.