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Old 08-26-2010, 10:47 AM   #1
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Fasting sugar higher than Non Fasting

Recently I had my blood work and A1C test showed 6.7 ..Doctor told me to buy a glucometer and check the sugar level periodically..

While checking the BG level, I found an intersting pattern.

I check twice a day.
1. Just before going to bed , which is 2-3 hours post meal
2. As soon I get up, which gives the fasting level

The night ones are always between 110-135 and I think that is perfectly normal.

But my fasting sugar level is always around 110-125 which is at the higher end.

Some days my fasting sugar level is higher than the after dinner sugar level.

Is it common?..if not,what can be the potential causes?

 
Old 08-27-2010, 05:55 AM   #2
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Re: Fasting sugar higher than Non Fasting

Sunny 2020: There's something called the Dawn Effect or Dawn Phenomenon. The body is releasing glucose (sugar) out of the liver during the morning. It's preparing itself for the day and makes the sugars higher. It's the same thing that happens with exercise. The liver produces the glucose so you don't faint and makes your sugars higher initially but then corrects itself 2-4 hours later. There's also something called Rebound Hyperglycemia. It's after eating at night and your sugars are high before bed.

Sometimes the foods you've eaten may not have been processed through your body either. Learn about fast acting and slow acting carbs. Corn is a slow acting carb and won't show up in your sugars until hours later. Proteins turn into sugar/energy too but at a slow rate.

Exercise is a natural insulin and will lower your numbers. If you exercise/walk after dinner I bet you'll find that your morning numbers will be lower if you don't add more carbs after the exercise. Try it. Exercise will initially increase your sugars too, like I said above, and then the body corrects itself 2-4 hours later.

Drinking plenty of water will also help keep your numbers lower. Good luck.

 
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Old 08-27-2010, 06:17 AM   #3
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Re: Fasting sugar higher than Non Fasting

You've gotten good advice so far. I would also suggest that you occasionally test at other times. Especially 2 hours (not 3) after a high carb meal. With an a1c of 6.7% technically you would be considered as having full blown type 2 diabetes. And you average blood glucose level is around 145. So a lot of the time you are actually going higher than that, even though you are not seeing it at the times you test.

While you are under the 7% "cut off" to be relatively safer from complications, you really should get to work to alter your diet and lifestyle in order to bring your sugars down.

Best of luck.
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Old 08-27-2010, 11:02 AM   #4
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Re: Fasting sugar higher than Non Fasting

I find a snack with protein (usually low fat string cheese or cottage cheese) right before bed along with about 16 oz of water keeps my fasting BS low. Your body needs the calories during the night and the water helps flush out the sugar.

 
Old 08-27-2010, 11:37 AM   #5
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Re: Fasting sugar higher than Non Fasting

I'm a type I, however, I learned a lot about my situation getting up and testing at 3:00 or 4:00 a.m., in addition to when I got up around 7:00. You might try that for a few nights just to see.

 
Old 08-27-2010, 12:50 PM   #6
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Re: Fasting sugar higher than Non Fasting

Thanks eveyone for the replies..really appreciated...

After reading this, I took my reading 4-5 times today..

Today fasting is lower than yesterday bed time..but still values look erratic..
These are the readings..Are these look correct or my meter is faulty? Howcome after such a heavy lunch my sugar level dropped by 40 points??

Yesterday just before going to bed - 143 ( 9.30 PM)
Today as soon as I get up - 131 ( 7.10 AM)

Two hours after breakfast ( A cup of coffee with cream and no sugar + 45 minutes in gym + 4 wheat breads) - 130 ( 10.20AM)

Before lunch ( Ate 10 cherries in between) -- 159 ( 12.20 AM)

2 hours after lunch ( par boiled rice, Fish and veggies,
Omega 3 1200 mg capsule, 5 mg Crestor for my cholestrol) - 116 ( 3.00 PM)


@teresamichile - By any chance you remember the name/brand of that snack? does that still make sense in view of my readings?

Last edited by Sunny 2020; 08-27-2010 at 12:56 PM.

 
Old 08-27-2010, 05:01 PM   #7
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Re: Fasting sugar higher than Non Fasting

Sunny2020: I'd say the reason your sugar went down after lunch was because of the exercise. Remember, I told you that exercise is a natural insulin and initially your sugars will go up because the liver is producing glucose so you don't pass out while exercising. Then the body corrects itself 2-4 hours later. That's why T1 diabetics have to have fast acting carbs/juice to keep their sugars stable from the exercise making their sugars go low. Also, some of your lunch (fish) might not have metabolized either. Proteins break down slower. I'd say you need to add some protein to your breakfast too. Nuts are good if you can eat them.

Your numbers aren't all that bad. My son is a type 1 and his numbers soar into the 200's and 300's. Just keep track of all the data and talk it over with your doctor.

 
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