Quitting smoking does not directly lower blood glucose, it only helps to lower blood glucose, so there is no such thing as how long it takes for blood glucose to return after quitting smoking.
Smoking may damage insulin signaling, glucose transport and glucose phosphorylation and other links, and damage the pathway related to glucose metabolism, thus causing insulin sensitivity to reduce, produce insulin resistance. The result is an increase in blood glucose.
In addition, nicotine and nitric oxide in tobacco will cause great damage to the blood vessel wall and vascular mucosa. A large number of smoking will increase the incidence of macrovascular disease and atherosclerosis in diabetic patients, making the blood circulation in the blood vessels is not good, which in turn induces diabetic foot, diabetic nephropathy, or hypertension, etc., so diabetic patients should quit smoking.
In order to restore blood glucose, in addition to quitting smoking, it is also necessary to follow the doctor’s instructions to take medication on time, regular monitoring of blood glucose, improve dietary habits and lifestyle, reduce the intake of high-sugar, high-fat, high cholesterol food, more exercise, less late at night, etc., and consult a physician in a timely manner for changes in the condition.