When you eat, your food is broken down into glucose (sugar), this in turn increases you blood glucose levels. Insulin is a hormone and is released from the beta cells in the islet cells of your pancreas. Insulin helps facilitate the glucose into our cells from the blood, decreasing blood glucoses levels and either provides cells with energy or stores it for later use.  

Diabetes is a disease in which the body cannot regulated blood glucose levels efficiently due to insulin abnormalities. Diabetes is spilt into an umbrella of types, the most prevalent being type I diabetes (where your body doesn’t produce insulin) and type II diabetes (when you don’t produce a sufficient amount of insulin).