Carbs and BG spikes

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Carbs and BG spikes


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Old 07-14-2011, 01:35   #1
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Question Carbs and BG spikes

Hi!

I'm so confused! Could someone help me please?

How much do carbs really spike blood glucose? Is there an online guide somewhere?

I heard that if you have 20g carbs for lunch, you must expect your blood glucose to go up to 20 mmol/L. Is that true?

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Old 07-14-2011, 01:39   #2
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Quote:
Originally Posted by Scarlet Phantom
Hi!

I'm so confused! Could someone help me please?

How much do carbs really spike blood glucose? Is there an online guide somewhere?

I heard that if you have 20g carbs for lunch, you must expect your blood glucose to go up to 20 mmol/L. Is that true?
There is no set amount it could go up... Might go up just a little or a whole lot...

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Old 07-14-2011, 01:45   #3
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We each respond differently to the stuff we ingest. I test my glucose a lot; especially when trying "new" foods where I can't predict the effect.

Bread/rice/potatoes/pasta spike almost all of us. Some mildly carby foods spike me, while a very few others don't. Another diabetic will have a completely different list of Good and Bad foods.

So I'm afraid I can't tell you how many carbs in a meal will spike you. Nor can I tell you how high any spike will be. All I can advise is to read labels where they're available and to test often -- 1 hour after first bite plus 1 hour after that.

To find carb counts for label-less foods, I check them out on CalorieKing.com. To find out which foods will tend to spike faster, you might want to check out the Glycemic Index (several sites and books).

Hope this helps some!

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Old 07-14-2011, 02:03   #4
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Glucose in your blood comes from both carbohydrates and protein you eat either real-time (right after you eat it) or delayed in both cases.

Fat adds no glucose on its own. Additionally, it can delay the real-time glucose which comes from other foods, so you can't assume you're seeing actual results just checking at 1 hour or at 2 hours. Different mixes of foods can move the time of the peak reading in either direction. Also, fat tends to make you eat less and less often which can be helpful.

It's really not as mysterious as it sounds, but use your meter to see for yourself. You can't really test for individual foods - unless you only eat one food at a time and from the exact same starting point or condition - which is virtually impossible.

A shorter and more effective way to learn is to monitor what you consume in terms of all three macro-nutrients: carbs, protein and fat. You can use either grams of each or percent of total calories for each. With this, you will find a much more reliable correlation with your meter readings and learn more quickly what you need to adjust for success.

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Old 07-14-2011, 15:08   #5
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This is definitely a YMMV situation. Sometimes I eat and spike 2-3 points for every carb I eat. So I have to limit carbs to 10 or so per meal. The amount of your spike will depend on how well your pancreas functions and what meds or insulins your are on. I try to limit my spikes to no more than 20 points because I am very slow to return to normal after a meal if I go above that.

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Old 07-15-2011, 19:48   #6
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Thanks everyone for taking the time to post an answer!

I'll have to test and test and test again then. I already know that pizza is a huge no-no. Just looking at a pizza spikes my glucose big time

I'll check the glycemic index and Calorieking.com

Big thank you

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Old 07-15-2011, 21:10   #7
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I cant live with out pizza - I dropped the thicker crust for thin shell.. Used to eat a whole one myself now its like a couple of slices and that even being replace by .....

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Old 07-15-2011, 21:21   #8
 
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Some people use a low carb tortilla for pizza crust, but I like the recipe I posted here. It uses either ground beef or sausage as the crust, and is yummy. You might want to give it a try.

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Old 07-15-2011, 22:25   #9
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Quote:
Originally Posted by Gizmo View Post
Some people use a low carb tortilla for pizza crust, but I like the recipe I posted here. It uses either ground beef or sausage as the crust, and is yummy. You might want to give it a try.
I use the low-carb tortillas only because my wife likes it best that way. Otherwise I'd go all-meaty too =)

... and Scarlet - how much carb spikes you depends on so many factors, as has been mentioned, including:
  • Amount of carbohydrate
  • Fiber content (if the bulk of the carb is fiber, it's not likely to spike you. Plus fiber slows the digestion/absorption)
  • Glycemic-Load of the carbs
  • How the particular carb(s) affects YOU, personally
  • Fat and Protein eaten with it (those also slow it's digestion/absorption, Fat moreso than protein...)
  • Endurance exercise PRIOR to eating (depleting glycogen stores means much of the carbohydrate goes to replenish glycogen stores instead of increasing blood glucose)
  • Exercise AFTER eating (I often eat a larger-carb meal approximately 45-60 minutes before a bike ride. Then a 2+ hr bike ride means no spike as it's all burned as it's digested.)

There's other things that factor into it, but that gives you some idea how many things can affect it.

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Old 07-15-2011, 22:38   #10
 
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Quote:
Originally Posted by beefy View Post
I use the low-carb tortillas only because my wife likes it best that way. Otherwise I'd go all-meaty too =)

... and Scarlet - how much carb spikes you depends on so many factors, as has been mentioned, including:
  • Amount of carbohydrate
  • Fiber content (if the bulk of the carb is fiber, it's not likely to spike you. Plus fiber slows the digestion/absorption)
  • Glycemic-Load of the carbs
  • How the particular carb(s) affects YOU, personally
  • Fat and Protein eaten with it (those also slow it's digestion/absorption, Fat moreso than protein...)
  • Endurance exercise PRIOR to eating (depleting glycogen stores means much of the carbohydrate goes to replenish glycogen stores instead of increasing blood glucose)
  • Exercise AFTER eating (I often eat a larger-carb meal approximately 45-60 minutes before a bike ride. Then a 2+ hr bike ride means no spike as it's all burned as it's digested.)

There's other things that factor into it, but that gives you some idea how many things can affect it.
Worry, stress and illness can affect it, too.

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