When you start moderate or strenuous exercise, the first fuel source tapped is the glucose present in the blood, followed by glycogen stored in muscle and the liver. Glucose is a fast-acting, easily accessible source of fuel, but the body's supply is limited. During strenuous exercise, the sugar in the bloodstream can be used up in only four minutes compared to the normal 30 minutes at rest. Your liver plays a critical role in supplying additional glucose for exercise through its release of glucose from glycogen stores into the bloodstream, but your liver's stores are also relatively small and can be depleted after another 20 to 30 minutes of very strenuous exercise.

If your blood sugar is low and you need a quick boost, nothing works faster than glucose. You can carry four glucose tablets in the Gluco-Carry, which are quickly absorbed into the bloodstream. You can avoid running out of energy by taking one or two glucose tablets at regular intervals.

It's not always easy to carry glucose tablets or an energy drink when exercising or playing sport, so carrying a Gluco-Carry is ideal because you can quickly reach for a few tablets, pop them into your mouth and carry on. It's discreet, small, light and you don't need pockets to carry it because included with the Gluco-Carry is a neck cord and clip that fits comfortably around your neck.