Normal blood sugar levels

Fasting glucose under 100 mg/dL and A1c under 5.7% are considered normal. A provider can order testing and start treatment if your numbers are elevated online.

Also called: what is normal glucose · A1c ranges · fasting glucose

Medically reviewed by Dr. Ikechukwu Ogbu, MD
MD · Board-Certified, Internal Medicine · Last reviewed

Get care for normal blood sugar levels online

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Seek urgent care or the ER if you have:

  • Symptoms that are sudden, severe, or rapidly worsening
  • High fever (over 103°F / 39.4°C) that doesn't respond to treatment
  • Chest pain, trouble breathing, fainting, or confusion
  • Signs of dehydration — dizziness, dark urine, unable to keep fluids down
  • Symptoms in someone who is pregnant, immunocompromised, or over 65

Conditions related to normal blood sugar levels

These conditions may be associated with this topic. They are not a diagnosis or a ranked list of causes; follow the urgent-care guidance below.

Type 2 diabetes

Type 2 diabetes is related to this topic. Its presence here does not establish the cause of normal blood sugar levels or that acute symptoms can be treated online.

Prediabetes

Prediabetes is related to this topic. Its presence here does not establish the cause of normal blood sugar levels or that acute symptoms can be treated online.

Hypoglycemia / low blood sugar

Hypoglycemia / low blood sugar is related to this topic. Its presence here does not establish the cause of normal blood sugar levels or that acute symptoms can be treated online.

Dr. Ikechukwu Ogbu, MD — Medical Director
Dr. Ikechukwu Ogbu, MD

Board-Certified · Internal Medicine · Medical Director

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