A1C and eAG

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An estimated average glucose (eAG) is an easy way to understand your A1C percentage result and help relate it with the glucose meter reading. 

What is estimated average glucose (eAG)?

Estimated average glucose

An A1C result is always in percentage, which is difficult to understand.  Estimated average glucose (eAG) helps translate our A1C % test result into a number in mg/dl or mmol/l. These numbers can be easily relating with the daily glucose meter readings.

New study provides a calculation formula to estimate glucose levels (in mg/dl on mmol/l) from the A1C results. This helps us to use the same numbers we are seeing on our daily glucose monitors.

eAG & Average glucose reading on the meter

Most of the blood-glucose monitor in use for daily testing can provide your average of all the readings past several weeks or months. Mostly, this meter average will not be same as the eAG, learn why? 

Your blood-glucose meter only provides the reading at that moment. Even if you are testing ten times or more, the average is likely to be slightly higher or lower than your eAG. The eAG is an average of glucose level 24/7 for lost two to three months; thus, it may be more accurate. However, if your reading deviates more than 15% consistently, then check whether your A1C result is falsely affected.

Two popular estimated Average Glucose (eAG)

There are numerous studies and formulas to convert A1C to blood-glucose level. There are two popular studies "The Diabetes Control and Complications Trial (DCCT)" & "A1c Derived Average Glucose is arrived using Continuous Glucose Monitors (ADAG)," which provides two different formulas for eAG.

Dr. Richard K. Bernstein, the author of the popular book "Diabetes Solution," is the first who successfully used low-carb diet for his type1 diabetes control (with an A1C of 4.2 to 4.6). He recommends DCCT's formula to convert A1C to eAG than the formula by ADAG recommended by ADA. 

Every individual is different, thus we provide two A1C charts (eAG); one based on DCCT A1C chart and another based on ADAG A1C chart. We request you to put your mind and find, which chart best suits you. However, we trust Dr. Richard K. Bernstein recommendation over American Diabetes Association (ADA). Additionally, our website visitors have been preferring DCCT over ADAG formula.

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