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Real members of DiabetesTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
January 3, 2023
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Members discussed the timing of morning fasting blood sugar tests in response to whether testing should happen immediately upon waking or can... Read more

Members discussed the timing of morning fasting blood sugar tests in response to whether testing should happen immediately upon waking or can wait a couple of hours. Several members shared that blood sugar naturally rises throughout the morning due to dawn phenomenon, even without eating or drinking, making immediate testing more accurate for capturing true fasting levels, while one member suggested testing at 3-4am once to determine if high morning readings stem from dawn phenomenon or Somogyi effect. A recurring theme was that while immediate testing upon waking provides the most reliable fasting glucose reading, members emphasized doing what works best for individual routines and understanding that any movement or time delay can affect the numbers.

A DiabetesTeam Member

Yes, it is recommended that people with diabetes take their blood sugar test as soon as possible after waking up in the morning, before eating or drinking anything. This is because blood sugar levels can be affected by factors such as food intake, physical activity, and medication use, so taking the test on an empty stomach provides the most accurate reading of your fasting blood sugar level.

If you are waking up at 4:00 am and not taking the blood sugar test until 6:00 am, you are missing out on valuable information about your blood sugar levels during the early morning hours. This can make it more difficult to manage your diabetes effectively, as you may not have a complete picture of how your body is responding to your medication, diet, and other lifestyle factors.

To get the most accurate reading of your fasting blood sugar level, try to take the test as soon as possible after waking up, ideally within 30 minutes. This can help you better understand your blood sugar levels and make any necessary adjustments to your diabetes management plan

February 16, 2023
A DiabetesTeam Member

You may get a true FBS at 0400,and dawn phenomenon at 0600.I test my FBS just before breakfast to avoid this.

July 18, 2023
A DiabetesTeam Member

I have discovered that when I get up and test it's around 5 or 6,as the morning progresses, without me consuming even a drop of water, it rises. In order to keep it in check, test as soon as possible and have something light to eat and take your meds, however this is my experience and I'm on tablets. Works for me, tc all of you, sending love and light๐Ÿ™๐Ÿ˜Š

January 26, 2023
A DiabetesTeam Member

Yes for a morning fasting blood glucose number, it should be done upon waking. But all numbers have significance.

January 3, 2023
A DiabetesTeam Member

Yes, because getting up an moving around can cause a different bs number

July 18, 2023

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