what are optimal blood sugar levels?
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Normal and diabetic blood sugar ranges For the majority of healthy individuals, normal blood sugar levels are as follows: Between 4.0 to 5.4 mmol/L (72 to 99 mg/dL) when fasting. Up to 7.8 mmol/L (140 mg/dL) 2 hours after eating.
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For most people without diabetes, blood sugar levels before meals hover around 70 to 80 mg/dL. For some people, 60 is normal; for others, 90. What's a low sugar level? It varies widely, too.
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If type 1 diabetes is left untreated, people's blood sugar levels can get very high, sometimes exceeding 27.8 mmol/L (500 mg/dL). Blood sugar concentrations below 3.3 mmol/L (60 mg/dL) are considered to be too low.
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For a person without any type of diabetes, blood sugar levels are generally between 70 to 130 mg/dL depending on the time of day and the last time they ate a meal. Newer theories about non-diabetic blood sugar levels have included post-meal blood sugar levels as high as 140 mg/dL.
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Blood sugar Q&A The general target ranges for blood sugar levels are 4–7mmol/l on waking, 4–7mmol/l before meals at other times of the day, and 5–9mmol/l two hours after meals, but your diabetes team may suggest individual targets for your child.
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will typically lower blood glucose levels, with the effects lasting for several hours. Normal fasting glucose levels are typically 70-109 mg/dl. has defined impaired fasting glucose as 100-125, a range not yet adopted by all.
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A fasting blood sugar level less than 100 mg/dL (5.6 mmol/L) is normal. A fasting blood sugar level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is considered prediabetes. If it's 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes. Oral glucose tolerance test.
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A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading between 140 and 199 mg/dL (7.8 mmol/L and 11.0 mmol/L) indicates prediabetes. A reading of 200 mg/dL (11.1 mmol/L) or higher after two hours suggests diabetes.
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Levels vary depending on what and when was the last time. Should be less than 140 mg/dl (7.8 mmol/l) if not taken soon after a meal. Morning values are usually less than 120 mg/dl (6.7 mmol/l). A reading lower than 70 or 80 mg/dl may indicate hypoglycemia, or low blood sugar level.
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Oral glucose tolerance test. A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading of more than 200 mg/dL (11.1 mmol/L) after two hours indicates diabetes. A reading between 140 and 199 mg/dL (7.8 mmol/L and 11.0 mmol/L) indicates prediabetes.
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What is high blood sugar? Blood glucose is commonly considered too high if it is higher than 130 mg/dl before a meal or higher than 180 mg/dl two hours after the first bite of a meal. However, most of the signs and symptoms of high blood glucose don't appear until the blood glucose level is higher than 250 mg/dl.
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Fasting Blood Sugar Test This measures your blood sugar after an overnight fast (not eating). A fasting blood sugar level of 99 mg/dL or lower is normal, 100 to 125 mg/dL indicates you have prediabetes, and 126 mg/dL or higher indicates you have diabetes.
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A normal blood sugar level is less than 100 milligrams per deciliter of blood (mg/dL) after an eight-hour fast. You have diabetes if your blood sugar is 126 mg/dL or higher.
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Blood Sugar Levels in the Morning This gives you a glimpse of what may be happening overnight, and it gives you a baseline for the day. Under 70 mg/dl if you do not have diabetes. 70 to 130 mg/dl if you have diabetes.
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Blood sugar levels vary throughout the day. In people with diabetes, they can range from below 70 mg/dL to well above 200 mg/dL. The hemoglobin A1c test measures the percentage of red blood cells with a sugar coating. In people without diabetes, that's only 4% to 5% of red blood cells.
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Moderate to severe high blood sugar If your blood sugar levels are consistently high (usually above 20 mmol/L in adults and above 14 mmol/L in children), you may have moderate to severe symptoms of high blood sugar.
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HbA1c targets Ideally, the lower the HbA1c value you can achieve without increasing instances or severity of hypoglycemia, the better. For comparison purposes, people without diabetes tend to get HbA1c readings in the 15 to 37 mmol/mol (3.5 to 5.5%) range.