Yes, according to an article published in the Lancet Diabetes & Endocrinology. In this meta- analysis, researchers examined data from nearly 90 studies reporting on smoking behaviors and type 2 diabetes; almost 6 million participants and 300,000 diabetes cases were included. The findings were as follows-

Compared to non smokers-

• Current smokers had a 37% increased risk for diabetes.
• Former smokers had a 14% increased risk.
• Those exposed to secondhand smoke had a 22% increased diabetes risk
• People who quit smoking had a 54% increased diabetes risk in the first 5 years after quitting, this risk increase declined to 11% by 10 years.