Diabetes > Diabetes Care > Blood Sugar Level Ranges
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Blood Sugar Level Ranges

Understanding blood glucose level ranges is key to both diabetes diagnosis and diabetes self-management.

Even if a person with diabetes has a meter, test strips and is testing successfully, if they do not know what their blood glucose level means, this testing is useless.

Furthermore, recommended blood glucose levels do have a degree of interpretation for every individual. There is no hard and fast guide, just generic advice.

Normal blood sugar ranges

For the majority of healthy individuals, normal blood sugar levels are as follows:

  • First thing in the morning, before breakfast: 80 to 120 mg/dl
  • Before other meals: 80 to 120 mg/dl
  • 2 hours after meals: 140 to 160 mg/dl
  • Before bed: 100 to 140 mg/dl

Blood sugar ranges for people with diabetes

When being tested for diabetes, blood sugar levels will normally be taken after around eight hours of fasting. During this blood sugar levels are put into the following categories:

  • Normal: 70 to 100 mg/dl (5.6 mmol/l)
  • Prediabetes or Impaired Glucose Tolerance: 101 to 126 mg/dl (5.6 – 7 mmol/l)
  • Diagnosis of diabetes: more than 126 mg/dl (7 mmol/l)

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