Healthy Blood Sugar Levels: What's Normal & What to Watch For

A blood sugar level of less than 100 mg/dL (5.6 mmol/L) is considered normal for someone without diabetes. However, it's important to note that blood sugar levels can fluctuate throughout the day and may be higher or lower depending on factors such as diet, exercise, stress, and medications. If you have concerns about your blood sugar levels, it is recommended to speak to a healthcare professional.