As a condition, people who have type 2 diabetes are the ones whose bodies find it hard to control the amount of sugar or glucose in their blood. This is usually caused by either a lack of or the body's failure to respond to insulin, a hormone made in our pancreas. Insulin allows the body to use glucose for energy, and lack of it significantly increases our blood sugar that could then lead to the development of type 2 diabetes.
Njengesifo, abantu abanesifo sikashukela sohlobo 2 yilabo abanemizimba ekuthola kunzima ukulawula ubungako bukashukela noma i-gulucose esegazini. Ngokuvamile lokhu kubangelwa ukungabikho kwe-insulin emzimbeni, okuyihomoni eyakhiwa amanyikwe,  noma ukungakwazi komzimba ukusabela kuyi-insulin.  I-insulin yenza umzimba ukwazi ukusebenzisa i-glucose ibe amandla, ukungabikho kwayo kuwunciphisa kakhulu ushukela osegazini okungabe sekuholela ohlotsheni 2 lwesifo sikashukela.