Nick has had diabetes since he was four and for this reason he supports and fundraises for this important cause. 

Looking mature and supportive, Nick Jonas helped Bayer with their new campaign to fight against Diabetes. This, unfortunately, is a very common disease which can cause people who have it to have too much sugar in their blood, amongst other symptoms. 

Nick Jonas has had this disease for many years but is able to keep it under control and act in a mature manner. Besides helping personally raise money and awareness for this cause, the Jonas Brothers also have a foundation called Change for the Children, which helps kids who have various illnesses. 

In this video Nick is representing Bayer Diabetes Care which aims to research new more effective ways to treat this illness and those who suffer from it. Even though Diabetes is serious, if it is treated correctly a person can lead a normal life. Nick Jonas is a good example of this, and so is Hallie Berry.