Dextro Energy Tablets Blackcurrant ( 14 x 24 packs) Dextro Energy Tablets Blackcurrant provides nutritious glucose with a fresh and fruity blackcurrant flavour, for anyone who needs a mental or physical energy boost. These also contain Vitamin C, to help strengthen the body's immune system. How glucose help to provide energy? Glucose directly enters the bloodstream to reach all organs and cells in the body, including the brain. It is known as one of the 'fastest-acting' carbohydrates and is identical to the blood sugar produced by our bodies. Glucose helps bridge drops in blood sugar levels. Easy to carry Dextro Energy Tablets are small enough to fit in your pocket or your everyday bag, so you can get an energy boost everywhere and anywhere.