After eating, what range is not uncommon for blood glucose?

• A. 60-80 mg/dL
• B. 80-120 mg/dL
• C. 140-180 mg/dL
• D. 120-140 mg/dL

Answer: (D)

After a meal, glucose from the digested food enters the bloodstream and the body releases insulin to help cells take it up. In healthy individuals, blood glucose typically rises to about 120–140 mg/dL within an hour or two after eating and then returns toward the fasting level as insulin does its job. So seeing 120–140 mg/dL after a meal is not unusual and fits the common post-meal range. Readings much lower, like 60–80 mg/dL, are more consistent with fasting or very low intake, while 80–120 mg/dL can occur, but the 120–140 window best matches a normal postprandial rise. Values in the 140–180 mg/dL range can occur, especially if a meal is very large or carbohydrate-heavy or if there’s impaired glucose handling, but they’re less typical as a standard post-meal reading.