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robertprice 06-07-2019 01:38

How long before BG drops?
I was a member here years ago and your advice worked! Somehow I've become careless [long story] and my BG has climbed to mid 120's.

Tracked all food and decreased carbs from 170 to about 90. It's only been two days but how long before I see meaningful results?

[I have a shopping list and will reduce carbs more]

itissteve 06-07-2019 01:55

Hi, Robert! Good for you for decreasing your carb intake -- it makes such a difference! Sometimes, though, the difference is hard to recognize.

Are you taking any medications or insulin for your diabetes? If so, eventually you and your doctor may have to talk about reducing the amount you're taking to compensate for the lower amount of carbs you're taking in.

Are you testing your blood glucose regularly? That's where you should see the significant results.

robertprice 06-07-2019 02:55


My BG's years ago were around 85-95 so I stopped checking, wrongly believing if I cooked all meals and avoided obvious foods then all is good.

Wrong. My increases in tree fruit, juices, and potatoes are the culprit. I have new menus removing all those things.

No meds yet. Since I believe I've ID'ed the source of high BG and cut them out, I'm hoping the numbers will improve.

Just curious how long it will take after cutting carbs over half.

itissteve 06-07-2019 03:10

Kinda depends on your body's ability to manage insulin on its own. It may not be as good as it was years ago, so even halving carbs from the "standard" diet may lower BG but not enough to get you below 100 on a routine basis. But you should start seeing lower readings in even a few days.

robertprice 06-07-2019 03:34

Many thanks. I'm not being impractical but dropping a point or two every few days will be just fine!

And I'm getting recipes here from that thread.

mbuster 06-07-2019 06:11

Hi robertprice, welcome back.

When are you testing? If random or fasting, those numbers may be slow at making a noticeable change as a downward trend. Your body is accustomed to higher BG level and the liver is probably working hard putting out extra glucose to keep it up at that level when you first reduce your intake. Cutting carbs should show bigger impacts on BG levels in the first couple of hours after eating and eventually as your liver stores less you should see fasting numbers start to come down. As itissteve mentions, there are other factors involved and circumstances may have changed a little bit over the years.

robertprice 06-07-2019 06:19

Many thanks. First am test 12 hours fast after evening meal. Then after lunch, at 2, 4, and 6 hours. Of course those vary greatly but the am test is what I consider the most valuable.

I do the > lunch testing to learn what causes the best/worst spikes, but just began this so not much data yet.

VeeJay 06-07-2019 14:46

Take a look at this method of testing:

You'd do better testing 1 and 2 hrs pp, The 4 and 6 hours may be a waste of expensive strips because the spike, if it occurs, will happen nearer to 1 hr.

robertprice 06-09-2019 00:36

I will look at those links. Mind set is to test at 12 hours because that's what my lab directs. For three days in a row, my BG continued to rise at 8, 10, 12, and 14 hours. Yes, testing too much but still surprised my 14 hour reading is 15 pts higher than 12 hours. Of course I'm stressing myself so have to settle on a better schedule

VeeJay 06-09-2019 04:15

15 point difference isn't really that much. Your blood is not homogeneous. There will be different concentrations of glucose throughout the blood. Test just minutes apart will not be the same. (even seconds apart). Plus, the technology of our current meters is not 100% accurate - a deviation of 10-15% is the norm.

Don't get too hung up on the fasting BG (first thing after waking). It's the post meal (1hr pp) that tell you more about how you're metabolizing carbohydrates. When you get your post meal levels down, the fasting will follow (eventually). You really have little control over the fasting level but you have direct control over what's in your meals.

I would suggest reading on to expand your knowledge of diabetes. It's well worth the time. Every time I visit it again I learn something new.

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