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The Question
09/25/09 10:28 AM

"I am pre-diabetic. Is it normal to have BS fluctuate by 50 or 60 points after eating the same foods?"
Asked By: linskath  
Category: Prediabetes

Background Info Hide
I was told I was pre-diabetic 7 years ago. My fasting BS is normal. But I spike after meals. I take no prescription drugs at all. I have had BS levels vary at 2 hours by 50 or 60 points when I have eaten the same high carb meal. But I have also had a big variance when eating meals with a 2 to 1 or 1-1 ratio of carbs to proteins. I have still spiked up to 200. My blood sugar also drops low, into the 40's and 50's at times. Most days I do the same amount of exercise. Are these large variances normal for pre-diabetics?

Expert Answers (1)

10/03/09 11:53 AM

Hi and thanks for writing dLife. It is not uncommon to have variances in blood sugar reading after eating the same types of foods and with a consistent exercise routine. Remember, blood sugar meters have a 10 percent or so variance in their readings, so taking the same blood glucose test twice in a row can give you different readings just because of this factor. Other influences can include stress, dental status (gum disease can definitely cause blood sugar elevations), sleep patterns and other medications as well as exercise levels. Also, remember that diabetes is a progressive disease- even though your blood sugar may be stable for a while, because of changes in your body's ability to produce insulin- especially after meals, your blood sugar may rise above desired levels regardless of foods that you eat. And weight changes and/or body composition changes can also influence how your body reacts to your own insulin. I would recommend that your review these concerns with your physician as well as other tests that may help clarify your diabetes status such as your A1c level (weighted average blood sugar level over the previous 3 months).
Answered By: Janice Baker
Accreditations: B.Sc., MBA, RD, CDE, CNSC
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