Carbohydrates, long blamed for fuelling obesity, have now been linked to lung cancer.
A new study has revealed a 49 per cent increase in risk among people consuming a diet with a high glycemic index.
The index measures how quickly blood sugar levels are raised after a meal, and foods with a high GI include white bread or bagels, corn flakes and puffed rice.
However, diets high in fruits and vegetables were found to decrease the risk.
Lead study author Dr Stephanie Melkonian, of University of Texas MD Anderson Cancer Center, said: "We observed a 49 per cent increased risk of lung cancer among subjects with the highest daily GI compared to those with the lowest daily GI.
"Diets high in glycemic index result in higher levels of blood glucose and insulin, which promote perturbations in the insulin-like growth factors (IGFs).
"Previous research suggests increased levels of IGFs are associated with increased lung cancer risk.
"However, the association between glycemic index and lung cancer risk was unclear."
In the UK, there are around 45,525 new cases of the disease diagnosed each year, while 35,371 people lose their life to the disease annually, according to Cancer Research UK.
"Previous research suggests increased levels of IGFs are associated with increased lung cancer risk."
They don't even know what or how this even increases lung cancer risks at all. It could merely just be that these people who were part of the study and eat carbs that are high gi have other factors associated with lung cancer risk- smoking, being overweight, not enough excercise, whatever. Eating carbs of any GI value alone has not been proven on its own to cause lung cancer.
Just live your life and eat what you want (but obviously not too much.) 
I eat so much rice