What are normal blood sugar ranges for healthy people?

The American Diabetes Association acknowledges these as normal blood sugar for healthy people who do not have diabetes:
fasting/before eating <100 mg/dl
2 hours after eating (post-prandial) <140 mg/dl
A1c blood sugar test (3 month blood sugar indicator) 4-6%



What does the American Diabetes Association recommend for those with diabetes?

The American Diabetes Association recommends the following blood sugar goals for those with diabetes:
before eating (pre-prandial) 70-130 mg/dl
1-2 hours after eating (peak post-prandial) <180 mg/dl
A1c blood sugar test (3 month blood sugar indicator) <7%