Why your fasting blood sugar might still be high on low carb

It’s not too uncommon to have slightly high fasting blood sugar on low carb and keto diets. Is this a problem?

It depends on your insulin levels, as outlined by Dr. Ted Naiman below. If you’re insulin sensitive, and have slightly higher fasting blood glucose, it’s likely just fine.
 

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7 Comments

  1. rpf
    Interesting but hard to know for oneself since there's no easy way to get your daily fasting insulin that I know of, is there?
  2. Tanya
    I just got a glucose monitor and was a bit worried when I saw my fasting blood sugar-6.9 mmol, almost diabetic. So no need for concern? Will it normalise?
  3. Cathis
    How can i messure the insulinlevel my self?
    Reply: #5
  4. Eddie
    Who created this infograph?

    Are the conclusions (high FBG "not a problem" if insulin profile appropriate) supported by studies?

    What is best course of action for a LCing (keto at time), exercising, daily IFing, man who is concerned about "pre-diabetic" FBG and A1c?

  5. Peter Biörck Team Diet Doctor
    Hi Cathis!

    There are no easy way (like for sugar and ketones) yet to do home testing for insulin levels.

    How can i messure the insulinlevel my self?

  6. Jennifer bowerman
    Am I wrong here? Most doctors don't measure insulin levels. They determine diabetes status based on blood glucose levels and then prescribe insulin or its equivalent to balance off and bring the glucose down. So high insulin is treated with high insulin. Isn't this a message Dr. Fung makes many times in his lectures?
  7. It
    Low carb is why i became hpothyroid. Good luck.

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