Fasting blood glucose in ketosis or LCHF?
nvmomketo
Posts: 12,019 Member
After seeing a related post, I was wondering what your morning fasting blood glucose levels are?
Prior to going LCHF, I was into the prediabetic range so I go a blood glucose monitor. I was usually a high normal or into the prediabetic range most mornings, but on on a couple of days when I had a lot of sugars before bed, I woke the next day with a 7.0. Scary. My A1C was slightly better than my fasting BG levels - don't know why.
While in ketosis, my fasting BG is between 4.1 and 4.9, with a greater frequency at the higher end.
When I ate over 100g in carbs in a day, a week or so ago, my FBG was back up to 5.6 and then slowly came back through the 5's over a few days. Eek. I apparently need to stay very low carb.
I included the conversion chart below because I think the States uses the other system to measure BG.
Anyone else who can share?
Fasting Blood Sugar Range
Hypoglycemia (low blood sugar)
30 = 1.7
40 = 2.2
50 = 2.8
60 = 3.3
70 = 3.9
Normal Blood Sugar
70 = 3.9
80 = 4.4
90 = 5.0
100 = 5.5
* Pre-Diabetic Range
101 = 5.6
110 = 6.1
120 = 6.7
125 = 6.9
* Diabetic Range
126 = 7.0
140 = 7.8
155 = 8.6
160 = 8.9
175 = 9.7
190 = 10.6
200 = 11.1
250 = 13.9
300 = 16.7
400 = 22.2
600 = 33.3
Prior to going LCHF, I was into the prediabetic range so I go a blood glucose monitor. I was usually a high normal or into the prediabetic range most mornings, but on on a couple of days when I had a lot of sugars before bed, I woke the next day with a 7.0. Scary. My A1C was slightly better than my fasting BG levels - don't know why.
While in ketosis, my fasting BG is between 4.1 and 4.9, with a greater frequency at the higher end.
When I ate over 100g in carbs in a day, a week or so ago, my FBG was back up to 5.6 and then slowly came back through the 5's over a few days. Eek. I apparently need to stay very low carb.
I included the conversion chart below because I think the States uses the other system to measure BG.
Anyone else who can share?
Fasting Blood Sugar Range
Hypoglycemia (low blood sugar)
30 = 1.7
40 = 2.2
50 = 2.8
60 = 3.3
70 = 3.9
Normal Blood Sugar
70 = 3.9
80 = 4.4
90 = 5.0
100 = 5.5
* Pre-Diabetic Range
101 = 5.6
110 = 6.1
120 = 6.7
125 = 6.9
* Diabetic Range
126 = 7.0
140 = 7.8
155 = 8.6
160 = 8.9
175 = 9.7
190 = 10.6
200 = 11.1
250 = 13.9
300 = 16.7
400 = 22.2
600 = 33.3
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Replies
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Do you measure at the same time each day? You get a squirt of cortisol that will raise your blood sugar in the morning -- i.e., the Dawn Effect.
Mine dropped from about 111 to 82 doing about 100g/d carbs for 3 months.0 -
Mine is always 3.9 to 4.2 mmol. Usually 4.2. It only went up to 5.2 once when I had gone for a walk before checking it. Back in my prediabetic and gestational diabetes days it was usually 5.6 in the morning.
It also goes to 4.2-5 after a meal (2 hours after) when I bother to check it. I am almost out of test strips.0 -
Last time I checked it was 84
But just to muddy the waters a little...
My internist mentioned my blood glucose level may be over 100 and be fine when losing body fat and eating higher protein
My A1C is the important number. Something about losing weight makes the blood glucose finger test seem higher that it is I relationship to actually burning out the glycogen in my blood at various times
He knew what he was talking about with the elevated BG related to exercise recovery, cortisol related stress, and burning body fat and morning raised numbers. We were able to reverse my type 2 diabetes.
So it is potentially not as simple as a reading of blood sugar being treated like a free standing piece of data.
It is one piece at one moment in time of a developing picture.
Stay on track and see trends over a month at a time.
Body fat itself causes insulin resistance. Just losing fat makes things better!0 -
The best thing is to have your doc measure your fasting insulin.0
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The best thing is to have your doc measure your fasting insulin.
Do you have a range chart similar to the glucose one above for insulin? I'd love to have more points of reference!
And I included my info in the other post, but mine has slowly gone up from low 80's at near my heaviest weight to low 90's now, but I've actively been losing weight that whole time...0 -
My A1C went from 13 to 5.8 at my last test when I started eating Low Carb. I stopped taking insulin within a week because my daily glucose went down to 32 or so quite frequently and I had to eat something sweet. I had not even lost much weight at the time.
I read that glucose is stored in fat so if you are losing fat it is releasing stored glucose and that may be why some levels rise. I experienced that too. My sugars levels were crazy for a while. My doctor had me stop checking and he would only check me every 6 months. My A1C levels ranged in the 5s for the past 4 years eating mostly LC.
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My A1C went from 13 to 5.8 at my last test when I started eating Low Carb. I stopped taking insulin within a week because my daily glucose went down to 32 or so quite frequently and I had to eat something sweet. I had not even lost much weight at the time.
I read that glucose is stored in fat so if you are losing fat it is releasing stored glucose and that may be why some levels rise. I experienced that too. My sugars levels were crazy for a while. My doctor had me stop checking and he would only check me every 6 months. My A1C levels ranged in the 5s for the past 4 years eating mostly LC.
My dr said the exact thing on fat burning raising your blood glucose and having minimal effect on A1C
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Glucose stored in fat? What?!
The docs may be talking about gluconeogenesis. We usually talk about it in terms of protein, but about half of the sugar made via that pathway comes from the glycerol left over from used triglycerides (i.e., burned fat).0 -
Interesting. Thanks! I'll look into the effect of fat loss on FBG. I hope that's it. I unfortunately suspect that it is just my body dealing with it's insulin resistance. I'm guessing it will take a few months or years to sort itself out.
This morning my FBG was 5.6 and ketones were trace. I think I ate too many carbs yestrday (about 60 total) including xyliotol sweetened chocolate chips and more veggies and nuts than usual. It appears that it doesn't take many carbs to get my FBG high.KnitOrMiss wrote: »Do you have a range chart similar to the glucose one above for insulin? I'd love to have more points of reference!
I'm afraid that I don't.0
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