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1. Fasting plasma glucose (FPG) test. This test measures your blood sugar levels after an overnight fast (not eating for at least 8 hours). The results are typically given in milligrams per...
Your glucose levels should generally be 140 to 180 mg/dL after eating. But they can rise higher depending on many other factors, including your age and what food or drink you've consumed.
Blood sugar levels after eating can vary by age, but a reading below 140 milligrams per deciliter (mg/dL) is generally considered normal. In contrast, levels over 200 mg/dL or higher may suggest that you have diabetes.
But how do you handle a spike that comes after you eat? It's called "postprandial" blood glucose, and if you take some simple steps, you can get it under control and help avoid health problems.
General blood sugar targets for adults with diabetes include a fasting blood sugar of 80 to 130 mg/dL and less than 180 mg/dL one to two hours after meals. Technically, anything higher than this is high, but this is also very subjective and should be discussed with your healthcare provider.
A non-fasting glucose test measures the amount of glucose (sugar) in your blood after eating. Normal non-fasting glucose levels are below 140 milligrams per deciliter of blood (mg/dL). If they're between 140 and 199 mg/dL, you may have prediabetes. If they're above 200 mg/dL, you may have diabetes.
Use a finger stick to measure your blood sugar right before a meal and 1 to 2 hours after a meal. Continue this activity for a week. Take a log of your levels and what you ate to determine what could be causing spikes. Medicine, exercise, and carb content could contribute to fluctuations. An ideal post-meal blood sugar level is under 180 mg/dL.
For many people who have diabetes, Mayo Clinic generally recommends the following target blood sugar levels before meals: Between 80 and 120 milligrams per deciliter (mg/dL) (4.4 and 6.7 millimoles per liter (mmol/L)) for people age 59 and younger who have no medical conditions other than diabetes.
Recommended blood sugar levels can help you know if your blood sugar is in a "normal" range. See the charts in this article for type 1 and type 2 diabetes for adults and children.
Typical ranges for blood sugar are 72–99 mg/dl before meals and less than 140 mg/dl two hours after a meal. What is a good blood sugar level in the morning? A healthy blood sugar level upon...