What Should Blood Sugar Levels Be At Bedtime?

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Impact Of Bedtime Snack Composition On Prevention Of Nocturnal Hypoglycemia In Adults With Type 1 Diabetes Undergoing Intensive Insulin Management Using Lispro Insulin Before Meals

OBJECTIVE—To determine the impact of four bedtime (HS) snack compositions on nocturnal glycemic control, including frequency of hypoglycemia (<4 mmol/l) and morning hyperglycemia (>10 mmol/l), in adults with type 1 diabetes using lispro insulin before meals and NPH insulin at bedtime. RESEARCH DESIGN AND METHODS—Substitutions of 15 g carbohydrate (one starch exchange) for an equivalent amount of uncooked cornstarch or pure protein were compared to a standard snack (control: two starch + one protein exchange) and to no snack (placebo) in 15 adults using a randomized, cross-over design. All snacks were equivalent in kcal, fat, and total available glucose. An intravenous facilitated hourly blood glucose sampling during the night (11:00 p.m. to 7:00 a.m.). RESULTS—The glycemic level at bedtime (<7, 7–10, and >10 mmol/l) mediated the effects observed. A total of 14 hypoglycemic episodes, in 60% of patients, and 23 morning hyperglycemic episodes occurred over 50 nights. Most hypoglycemic episodes (10 of 14, 71%) occurred with no snack compared to any snack (P < 0.001) and at HS levels of <7 mmol/l (P = 0.05). The standard and protein snacks resulted in no nocturnal hypoglycemia a Continue reading >>

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Popular Questions

  1. VolsFan22

    Blood sugar drops after eating

    I was wondering if there is anyone else that their sugar bottoms out after eating. I can eat a meal and about an hr or an hr and half later I feel sick and shaky. When I check my sugar it is low. Is there anyone else with this problem? If so what do you do?

  2. VolsFan22

    Hello Gabby,
    I've noticed that if my suger is high before I eat it will bottom out about an hr to 1 1/2 hrs after I eat, but if its low before I eat it raises it up. Like today at 5 pm it was 105 and 4 hrs later it was 77 in that 4 hrs I had ate a big slice of cheese lasguna with bacon and broc, plus a candy bar and 2 glasses of sweet tea. I don't count carbs cause the doctor told me it aint what I'm eating its my body thats causing it, she says I make to much insulin and then not enough so its like my body is on a roller coaster all the time. I'm not on any meds or insulin, my doctor says I'm pre-diabetic and you have to be a full one before anything can be done.

  3. kdroberts

    You need to get a better doctor. It's pretty common for people with type 2 diabetes and pre-diabetes who eat a very high carb meal like you did to get very high blood sugar that triggers a massive insulin release and leads to low blood glucose. food is pretty much the sole cause of the roller coaster so there is absolutely things you can do. The standard starting advice for this type of thing is switch to 6 small meals a day, no more than 20g of carb at each one, and see what happens.
    Besides, with moderate diet and activity changes it's possible to roll back pre-diabetes and hold off diabetes, potentially for the rest of your life. Ignoring it like you have been told is a sure fire way to become diabetic in the near future. Just to emphasise the point, find a new doctor who knows what they are talking about and can help you rather that one whose advice guarantees problems down the line.

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