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Why Does My Blood Sugar Go Up When I Do Not Eat?

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How You Can Have High Blood Sugar Without Carbs

Can you have high blood sugar without carbs? Well, it’s important to look at common beliefs about high blood sugar first. “High blood sugar is bad. Carbohydrates raise blood sugar. Therefore carbohydrates are bad.” The theory is simple, and yet incredibly flawed. The truth is, you can have chronically high blood sugar even while religiously avoiding every starch and sugar in sight. Low-carb forums are littered with posts asking a very relevant question: Why is my blood sugar so high when I’m not eating any carbs? The answer is simple, yet often overlooked. If the body were an engine, glucose would be its fuel. Most people think glucose only comes from carbohydrates (sugar and starch), but protein can also be turned into glucose when there aren’t enough carbs around to do the job. This is called gluconeogenesis, and it’s performed by one of the major stress hormones cortisol. When you have high cortisol levels (from diet, lifestyle, etc.), the cortisol rapidly breaks down protein into glucose, which can raise blood sugar levels considerably. For some folks, this results in chronically high blood sugar–even if they are on a low-carb diet. The trouble is, cortisol isn’ Continue reading >>

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  1. Peg61

    Blood glucose levels that increase during the morning before eating

    Hi. I have Type 2 Diabetes and am on Janumet and Actos 15. My initial glucose upon waking at 3:15 is good: 100-125. I workout, drink coffee, and get ready for work. When I test my sugar before I eat breakfast at 5:45, my glucose level jumps to as high as 175. Can anyone tell me why the big spike before I even eat?
    Thank you

  2. JoleneAL

    Peg61 - I'm having this problem with normal readings when I wake then an hour later, its up over 175. I don't eat breakfast for 3 hours after I wake. I was wondering how you managed to get yours under control? I read through the comments and am going to try and eat a Glucerna or low-carb/high protein bar when I get up before starting my morning routine and see if that helps. Thanks!

  3. Peg61

    Hi. Apparently this is very common. About 15 minutes after waking I drink an EAS high protein carb control shake, work out for about 30 minutes, shower, etc. I eat breakfast about 2 1/2 hour later and when I test my blood sugar before I eat breakfast, it only goes up a little from about 110 when I wake up to about 130 before I eat breakfast. I also began using stevia in my coffee instead of splenda, and powder creamer instead of liquid creamer. My readings 2 hours after breakfast only goes up 10 points or less. I hope this works for you. Good luck

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