The importance of good care and early diagnosis for people with Type 2 diabetes has been highlighted by research published in the journal.
It also confirmed that lifestyle factors such as smoking and being overweight play a large part in increasing the risk of serious complications.
Shockingly, the research following 44,230 people with Type 2 diabetes found that those aged between 35 and 54 are over three times more likely to die than those without the condition.
For people aged from 85 to 89, the increased risk of death is over one and a half times more than those without the condition.
“These results are shocking," said Douglas Smallwood, Chief Executive at Diabetes UK.
"But the good news is that the risk of developing complications can be greatly reduced if people are diagnosed early and get the care they need to manage their condition effectively."
"There is no reason why people with diabetes cannot live long and healthy lives.”
Poorly controlled or undiagnosed diabetes can lead to complications like heart disease, stroke, kidney disease, and nerve damage leading to amputation and blindness.