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Fasting Blood Sugar Definition

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How To Tell When Normal Blood Sugar Isn’t

Most people don’t worry about diabetes until a doctor tells them their blood sugar is too high. But even if you get a “normal” blood sugar reading at your next exam, you might not be totally in the clear. According to cutting-edge research, blood sugar levels on the high end of the normal range may still raise your risk of illness, leading some doctors to take such results more seriously — particularly if patients have other diabetes risk factors, such as obesity or family history. The somewhat arbitrary cutoff between normal blood sugar levels and higher ones associated with diabetes may give a false sense of security to millions of people, notes brain researcher Nicolas Cherbuin of Australian National University. His research published in 2013 found that middle-aged people with high-normal fasting blood sugar readings had worse scores on memory tests and more shrinkage in a brain region important to memory than those with lower blood sugar. Higher glucose levels may damage blood vessels and hinder the flow of nutrients to the brain. THE NUMBERS YOU AND YOUR DOC SHOULD KNOW • DIABETES: Blood sugar level of 126 mg/dl or higher • PREDIABETES: Blood sugar level between 10 Continue reading >>

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Popular Questions

  1. GMX

    I've been ketoing now almost 5 weeks but have been struggling to get my fasting blood glucose down. This morning my blood ketones registered at .8 but my blood glucose was 122. I'm eating about 90-100g protein a day but I weigh 217. Is it still just too much protein? Carb intake is negligible. Fat intake is probably 250g a day. Any thoughts? Thanks.

  2. Mare

    For your weight, that does not seem like a lot of protein to me. I weigh 145, and I've calculated my minimum protein at 60g and can go as high as 100g.
    As to blood glucose, there's a phenomenon with ketosis where fasting BG is elevated, but it is benign. Peter at Hyperlipid had a post on his blog some time ago that provided the science behind this, but I could not follow it. This may be what you're experiencing.

    My endo told me that this is true, and he goes by my A1C rather than my fasting because of this.

  3. carolT

    Protein could be lower if you are female (sorry, can't tell) and/or not exercising, but the ketone level indicates you are accessing some fat overnight.

    Have you taken glucose readings at night or before your main meal? Are they lower? You may be experiencing "dawn phenomenon" where glucose is higher in the morning because 1.) the same hormones that wake you up also give you some extra glucose to start the day or 2.) your glucose dropped overnight and your body reacts by making more of it. Also, if you happen to get up in the middle of the night, you could see what your glucose is doing before your normal waking time.

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