• Check your blood sugar at least 30 minutes before exercise.
• If blood sugar is very low (around ≤ 90 mg/dL), consume 10–20 grams of glucose or a fruit and postpone exercise until blood sugar becomes normal.
• Stop exercising immediately if you experience symptoms of hypoglycemia (low blood sugar) such as dizziness, fatigue, or sweating.
• Exercise can be started if blood sugar is between 126–180 mg/dL.
• Aerobic exercise can be performed if blood sugar is between 182–270 mg/dL.
• Any changes to bolus insulin dosage (up to ~75%) should only be made under a doctor’s guidance with regular exercise.
• Usually, no change is needed in basal insulin.
• Exercise should be light and comfortable; always consider your body’s capacity.