糖尿病了，空腹正常值应在4-7 mmol/l（72--126mg/dL) 之间。

A normal pre-prandial (before meal) blood glucose level will be between 4 and 7 mmol/l.
After eating (post-prandial) levels should be below 9 mmol/l when tested 2 hours after a meal.
When going to bed for the night, levels should be no more than 8 mmol/l.