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actorkent
Sun, Jan-07-07, 06:31
When a person is in a ketogenic state where do the carbs go? Is it possible that since a diabetic is screwed up that this process doesnt work either?

For two days i have raised my carbohydrates 50% just hovering at ketosis and find lower numbers and MUCH lower in the morning. I am going to raise them a bit more.

If my body is in a non-sugar burning state and at the same time is screwed up about sugar (diabetes) maybe too low carb is screwing me up more.

I have seen a few posts saying to eat more carbs.. glad i spotted them.. but low carbers never talk about "where the carbs you DO eat... go?"

where do they go?

my guess.. they go in my blood and do NOT get used up cause I am in ketosis.


ps.. lost 30 pounds 6 years ago low carbing... never gained it back.. i know what i am doing.. just an fyi...

Lisa N
Sun, Jan-07-07, 13:58
Hi Kent!

The carbs we eat are still digested the same and are converted to glucose. There are cells in the body that require glucose to function and cannot run on ketones so the carbs that we eat that become glucose are preferentially used by those cells. The liver converts dietary protein to glucose in a slower process called gluconeogenesis to provide any remaining glucose needs the body may have which are greatly diminished when the body is using fat as the primary fuel source.
HTH!

eddiemcm
Mon, Jan-08-07, 05:44
There are many claims that white kidney bean extract performs inhibition for the glucose
extraction from carbs(inhibits an enzyme called
amylase that performs the said extraction).
I have yet to find one of these products that
affects glucose in the blood-maybe the liver
is supplying the glucose when it isn't available
from carbs.
Living,learning(well,learning a little from time
to time).
Eddie

actorkent
Mon, Jan-08-07, 07:34
The logic would kind of follow that if a diabetic is in ketosis they are not burning as much sugar than if they were not. So does it pay to experiment with low carb just barely above ketosis so you are burning up the glucose you are manufacturing from the crabs you eat? (that WAS a typo but such a fun one i left it)
There are so many low-carb lifestyles where does one start. I know some of them eschew ketosis. It would be rough to eat just enough to stay out of ketosis but not so much as to rocket BG numbers.

thoughts?

Charran
Mon, Jan-08-07, 07:59
There are so many low-carb lifestyles where does one start. The place to start IMHO is at the place where you are getting the results that you want. If your weight is going down, you are looking and feeling good, your blood tests are in a range that you're comfortable with, then that is the level where you should be. This of course, is going to be different for everyone and may require some experimentation.

dina1957
Tue, Jan-09-07, 17:50
The logic would kind of follow that if a diabetic is in ketosis they are not burning as much sugar than if they were not. So does it pay to experiment with low carb just barely above ketosis so you are burning up the glucose you are manufacturing from the crabs you eat? (that WAS a typo but such a fun one i left it)
There are so many low-carb lifestyles where does one start. I know some of them eschew ketosis. It would be rough to eat just enough to stay out of ketosis but not so much as to rocket BG numbers.

thoughts?
Eat up to your meter, whatever level of control you can accomplish with amount of carbs you can live with. Some can go almost zero carbs and have great control, some need more to function and have great control too. General rules 1h PP <140, 2 h pp <120, and fasting is <110. So, try different level of carbs and check Bgs often, until you will see which food impacts you the most.
HTH

Markm
Tue, Jan-09-07, 20:56
I eat 50-60 grams of carb a day. Which is apparently low enough to cause ketosis. But there are never any keytones in my urine. Not even a trace. What does this mean?

Mark :confused:

dina1957
Fri, Jan-12-07, 14:00
I eat 50-60 grams of carb a day. Which is apparently low enough to cause ketosis. But there are never any keytones in my urine. Not even a trace. What does this mean?

Mark :confused:
50-60 g is may be not low enough to get sufficient level of ketones in urine.
I believe LyleMcDonald explained it much better
http://low-carb.org/lylemcd/cyclic1.htm.
HTH

eddiemcm
Sat, Jan-13-07, 12:57
No ketones in urine=no ketosis!
The maximum number of daily grams of carbs
to put a person into ketosis varies from person
to person.For me,it's 25.
Eddie

dina1957
Sun, Jan-14-07, 20:22
No ketones in urine=no ketosis!
The maximum number of daily grams of carbs
to put a person into ketosis varies from person
to person.For me,it's 25.
Eddie
I think level of ketones in urine is not not linear realtions to carbs but also a factor of water consumed, BGs, efficiency of using ketones, etc. let's say, one is drinking about a gallon of water a day as many advise on ketogenic diet, so the urine will be highly diluted and ketones concentration will drop or barely any will show up. Or if one has been in ketosis for a extended period of time, then body adjusted to use ketones more efficienly and less show up in urine? There is also insulin level, if one is very IR to even dropping carbs to 25g does not assure deep ketosis since basal insulin can still be high. Just thinking about some possible explanations.
I also recall for ketogenic diet used to treat epilepsy, they recommend to reduce water intake to keep ketones concentration high, so water intake can give escew the test results (not?).
EDA: Ok, I have found something that explains it better, and LyleMcDonald does it all (as usual):

From a dietary standpoint, to establish and maintain ketosis, two criteria
must be met:
1. Carbohydrate intake must be kept below 30 grams. However, there is some
indivduality in this number. Some individuals can handle more
carbohydrates while others may have difficulty establishing ketosis at this
level. If you can't get into ketosis and everything else is in place, try
cutting your carb intake to 20 grams or less. Also, many individuals choose
to consume as few carbs as possible (zero) until ketosis is fully
established and then increase carbs slightly (celery and cucumber are both
good and add some nice texture to an otherwise bland diet) at that point.
2. The ratio of fat to protein should be 1.5 grams of fat *minimum* for
every gram of protein and carbs in the diet. This is a 75% fat, 25%
protein ratio with trace carbs. So, if you plan to eat 200 grams of
protein, you need to eat at least 300 grams of fat. In most cases, the
easiest way to meet the fat requirements of the diet is to pick your
protein food first (most protein foods have some fat in them) and then
balance the meal out with the proper amount of whole fat food such as
vegetable oil, cream cheese, or mayonnaise and heavy cream (a great dessert
is heavy cream with protein powder and Equal. Mix it up in a bowl and
you've got pudding!)
and this one just because we are most diabetics here, so here we go:

The other key to establishing and maintaining ketosis as rapidly as
possible is that blood glucose (normal is 80-120 mg/dl) must be lowered to
50-60 mg/dl. At this point, insulin levels decrease and glucagon levels
(which are responsible for ketogenesis) rise. Simple carbohydrate
restriction will cause ketosis to occur in three or four days. But proper
training can put you in ketosis within 36-48 hours of stopping carbs. And,
the more time you are in ketosis, the more fat you can lose...
This actually explains why it is harder to lose fat for T2 and very IR folks.
http://low-carb.org/lylemcd/cyclic2.htm
HTH

Lisa N
Mon, Jan-15-07, 07:09
The other key to establishing and maintaining ketosis as rapidly as
possible is that blood glucose (normal is 80-120 mg/dl) must be lowered to
50-60 mg/dl

Am I understanding this correctly that the author is stating that people must be hypoglycemic before they can be in ketosis? Even normal people can't achieve that nor should they since it would be a pretty miserable existance as anyone who has spend any amount of time in hypoglycemic territory can tell you.

eddie, a person can very well be in ketosis and not be showing measurable ketones in the urine. Remember, ketones that show in the urine are the excess that have been wasted by the body and a person can test negative and stil be in ketosis for a variety of reasons such as very diluted urine (ketone test strips only register when the concentration of ketones reach a certain point and dilution lowers that concentration) or when the body uses most of the ketones produced for energy.

actorkent
Mon, Jan-15-07, 07:16
From the article linked above:
"Prior to the depletion workout, it is important that you get out of
ketosis by consuming 50 grams of carbs (fruit is ideal) about 2 hours
before the workout. The rationale is this: while in ketosis, the body will
prefer ketones to glucose for fuel. To achieve maximal glycogen depletion
in all muscle fibers, you need to exit ketosis. Fruit (which will
preferentially refill liver glycogen) is the ideal way to do this.
"
So.. does it make sense that in some weird way It might be better for SOME Type 2's (like me) to be OUT of ketosis to burn more glycogen/sugar.
I am thinking I will stay on the same low carb diet I am doing now (cause i know i maintain ketosis easily) and then each meal add an apple.. see if that will bump me out of ketosis.

What does it mean when we say the body is burning ketones or fats versus being in a non-ketosis state. WHAT is burning this energy. Is the complete entire system of the body switched over.
Since my liver is SO Good at makeing sugar out of protein I am wondering if ketosis is actualy a rotten state to be in sugar wise, no matter how good it makes me feel energy wise.

DO some Type 2s have better luck on the zone for instance?

personally i dont think anyone understands the body, diet, sugar, diabetes, ketosis etc etc. the systems are too way complex to have a 'one fits all' view of them all.

Gonna try the apple a meal thing.. or at least add an additional 20 carbs each meal.

(no weight loss... no inches lost.. getting stronger... BG 120-150 A1c in february. off drugs since november.. but paying for it with much higher numbers)

dina1957
Mon, Jan-15-07, 11:20
Am I understanding this correctly that the author is stating that people must be hypoglycemic before they can be in ketosis? Even normal people can't achieve that nor should they since it would be a pretty miserable existance as anyone who has spend any amount of time in hypoglycemic territory can tell you.
I hope you read the entired article, because you just took this part out of content. He stated that it is one of the ways to establish deep ketosis FAST; it is not consider blood glucose of 60 is not HYPO, but on the low side of the current FBG range: 60-100. ;)I was hitting mid 50s while taking metformin without even noticing, and feel normal with BGs 60 too. For a non-diabetic person is not a problem to hit low BGs fast when carbs are restricted and glucogen stores are depleted especially if one is athlet and does weight training. ;)
Lyle McDonald is very well known and respected author of many books and articles, guru of weight loss/nutrition, exercise, and he goes into explaining human biochemistry into a great level of details never mentioned in popular diet books written by some doctors;) He wrote "The Ketogenic Diet: A Complete Guide for the Dieter and the Practitioner" which is considered to be the most comprehensive book on low-carbohydrate diets ever written...

Lisa N
Mon, Jan-15-07, 11:59
I did read the article, Dina, but it refers to lowering body fat in preparation for a bodybuilding contest (ie taking it much lower than the average person) which I don't believe too many people here are doing. With all respect to Lyle, a blood sugar in the 50-60 range is considered low and at the very minimum borderline hypoglycemia.
http://www.emedicinehealth.com/low_blood_sugar_hypoglycemia/article_em.htm
and a level at 50 can affect brain function.
I have to ask why the hurry to get into ketosis for the average person?

OTOH, if a blood glucose of 50-60 is perfectly okay according to Lyle, then attempting tigher control of blood glucose and an A1C averaging about 85 should be very doable even if a person has to spend some time in the lower ranges, right? ;)

dina1957
Mon, Jan-15-07, 23:05
With all respect to Lyle, a blood sugar in the 50-60 range is considered low and at the very minimum borderline hypoglycemia.
He does state that normal BGs is 80-120, but the article is written for bodybuilder (not diabetics). I provided the link only because it explains ketosis much better than any other diet books (and I have read nearly all of them).

I have to ask why the hurry to get into ketosis for the average person?
Who said something about need to be in ketosis for Bgs control or hit it fast? This was not the point, again, this was just an example how a healthy person can achieve ketosis much faster than T2 by simply dropping carbs, and why it is hardly possible for any T2 to hit 50-60 range without medications and/or insulin just by dropping carbs- same old liver problem.
OTOH, if a blood glucose of 50-60 is perfectly okay according to Lyle, then attempting tigher control of blood glucose and an A1C averaging about 85 should be very doable even if a person has to spend some time in the lower ranges, right? ;)
Lyle speaks of body builders not T2, those folks who train for competition and try to shed as much FAT as they can before the event. Keep also in mind, this is CKD (cyclical ketogenic diet) design to preserve as much muscle mass as possible while losing as much FAT as they can, and this diet includes regular carbing up to replenish glucogen stores.I don't think he states that it is normal to be in 50-60 range for a long time, it is normal for non-diabetic to hit a lower BGs at the beginning of ketosis, not being at this range for the rest of the diet. Tight control is possible if the controller is working properly and fine tuning is doable, not when the controller is broken. My work revolves around control systems, and I happen to know a thing or two about controller tuning. It is easier to control Bgs with low carb diet but hardly possible for T2 to be at 85 around the clock, not even possible for healthy person on a regular diet. This is actually actually OT.

actorkent
Tue, Jan-16-07, 07:47
So no one has still answered this question.
Is it possible that being just barely OUT of ketosis is a better sugar burning state than being IN ketosis. Is it possible somehow to be VERY low carb but keep the body from entering ketosis.
and.. are the low lipids/bp benefits of low carbing only available if in ketosis.. or as a result of keeping carbs low.

still confused.. need to read more..
ps.. i did not take the above quote out of context.. the important part of the quote is:"in ketosis, the body will
prefer ketones to glucose for fuel. To achieve maximal glycogen depletion
in all muscle fibers, you need to exit ketosis"
this quote implies... the normal body state consumes sugar better.

so.. if i am insulin resistant, glucose intolerant and type 2... does ketosis hurt my ability to kill sugar...

OR as someone else stated is the benefit of regulating sugar under low carb the more important benefit. I hover around 140-150 and only with EXTREME exercise do i see a 120. no meds. body building to increase muscle mass.. no change in weight.. no change in inch measurements.

babbling.

dina1957
Tue, Jan-16-07, 22:39
So no one has still answered this question.
Is it possible that being just barely OUT of ketosis is a better sugar burning state than being IN ketosis.
IMO, it is not necessary to be in ketosis to control BGs better, ATMOF, for me it is better not to be in ketosis, you my Bgs will run slightly higher.
Is it possible somehow to be VERY low carb but keep the body from entering ketosis.
as it was already pointed, definition of ketosis does not always correlates with large amount of ketones in urine (unused) but rather evaluated by other criteria. The amount of carbs varies from one person to another, and while T2 can have problem entering deep ketosis due to high basal insulin I despite eating little carbs) healthy person can enter ketosis when carbs are less than 20g. Lyle is correct that body preferes to use ketones as fuel and will not burn glucose while in ketosis. I think once the carbs are too low for at least 48 hours, the "starvation" alarm goes off and the body goes into back-up fuel burning mode and saves glucose only for those cells that can't use FFA and/or ketones, and need only glucose to function.
So, this lead to another problem of many T2: deep ketosis will leave more glucose circulating in blood stream, rather than being burned. Tried and true for me, but many folks seem to have no problem with it. It could be also that those T2 who weight train ( I mean heavy lifting) may run higher Bgs in deep ketosis due to liver dump that is not hastened by llowered insulin.
Bottom line, we have problem burning glucose as a major fuel source, so in ketosis or not, the problem still exist.
and.. are the low lipids/bp benefits of low carbing only available if in ketosis.. or as a result of keeping carbs low.
Again, ketosis needed as a kick start to get body into fat burning mode, it has rather very little to do with Bgs control per se, and is not necessary for good Bgs, lower CHO and BP, any low carb plan will do. Some do great on up to 100 g of carbs a day, and if you exercise a lot, it may be more beneficial to stay out of ketosis or do cyclical ketogenic diet.


ps.. i did not take the above quote out of context.. the important part of the quote is:"in ketosis, the body will
prefer ketones to glucose for fuel. To achieve maximal glycogen depletion
in all muscle fibers, you need to exit ketosis"
I did not say you did, it was another poster.
this quote implies... the normal body state consumes sugar better.
the key word is NORMAL person, and we are T2, so the same rule does not apply to diabetics, who have to deal with liver dump, gluconeogenesis, IR, and other variables that do not fit well into one equation of Bgs control.
But it makes sense, that body will rather burn ketones while in ketosis, which is necessary for fat burning (weight loss) but not required for Bgs control. The whole concept of low carb diet for Bgs control comes from eating very little carbs per meal to avoid Bgs spike, sort of level them out, so insulin drop somewhat too ( not as low as in healthy folks though) since we have at least 4 times higher insulin requirements for the same BGs as healthy ppl, and some IR have as high as 10 folds insulin to maintain near normal BGs.

so.. if i am insulin resistant, glucose intolerant and type 2... does ketosis hurt my ability to kill sugar...
Yes and no, ketosis helps to reduce insulin but it may hasten your body's ability to use glucose more effeciently, but after all, being T2 means that you are glucose intolerant, so you already have this issue. I think the problem is gluconeogenesis, so if there is not enough carbs, liver works too hard to prevent hypoglycemia and there is not enough insulin to stop it.

OR as someone else stated is the benefit of regulating sugar under low carb the more important benefit. I hover around 140-150 and only with EXTREME exercise do i see a 120. no meds. body building to increase muscle mass.. no change in weight.. no change in inch measurements.

babbling.
For me Bgs control is primary, everything esle is secondary. Bgs and weight loss go into opposite direction for me: better Bgs= no weight loss, lose weight - Bgs go higher. If the glucose gets into cells (so you see beter numbers) you better burn it or it will get converted into fat. Weight lifting IMO burns more fat than sugar, so may be you can add some aerobic exercise to your routine ro burn some sugar: running, walking, swimming - works better than others for me.
140-150 is a bit on higher side IMO, could it be that you need to re-evaluate your diet and exercise routine or may be add some medications to see slightly better number (100-120). Anyways, discuss this with your doctor first, this is the most impotant.
HTH

eddiemcm
Wed, Jan-17-07, 05:44
Ketones are passed to urine when they are
present but body cells have no use for them.
Even if a person is in ketosis,extreme exercise
will deplete a lot of ketones.
If a person is truly in ketosis, ketones should show up in urine,a couple of hours after
a high fat meal if person has no current
high energy requirement.My impression is that
ketosis is great for someone wanting to lose
weight but I agree with Dina that a person need not be in ketosis to acheive good blood
glucose control.

eddiemcm
Wed, Jan-17-07, 05:49
I agree with Dina about aerobic exercise being
better for blood glucose control.I have done a
lot of experimenting with the various types of
exercise.I do weightlifting because I like it but
i do aerobic exercise for blood glucose control
and it works well-it will sometimes drop my
glucose reading 30-40 points.

dina1957
Wed, Jan-17-07, 13:48
I agree with Dina about aerobic exercise being
better for blood glucose control.I have done a
lot of experimenting with the various types of
exercise.I do weightlifting because I like it but
i do aerobic exercise for blood glucose control
and it works well-it will sometimes drop my
glucose reading 30-40 points.
I came to the same conclusion. I like weight lifting but it spikes Bgs especially if I am in ketosis. It is great exercise but does not agree with my body in deep ketosis. Aerobics (even brisk walk) will drop Bgs since it burns mostly sugar, even I do 1st thing on empty tank. If I lift on empty, I see spike up to 60-70 points now. If I go swimming 1st thing int he morning, I come back with Bgs in low 90s.
I know Dr.Benstein favors weight lifting over aerobics, but he can inject insulin before workout to keep his Bgs from rising, while I have to eat something carby to get the same efect or I will not be happy with my meter, LOL.
So, I have learned my lession: have some carbs before lifting to prevent the spike and do aerobics 1st thing in the morning to lower FBG. overall, it is a trial and error, never ending fight.
JMO

ReginaW
Wed, Jan-17-07, 15:58
I eat 50-60 grams of carb a day. Which is apparently low enough to cause ketosis. But there are never any keytones in my urine. Not even a trace. What does this mean?

Mark :confused:

If you've been in ketosis for a while, your body gets much more efficient at making only the ketones you require for energy and has less excess to spill is one potential reason; another is you're diluting ketones enough with adequate hydration; last is 50g-60g may be making you "teeter" in and out of ketosis rather than maintain continuous ketosis for energy needs.

I wouldn't worry much about it as long as you do not begin to gain weight.

dina1957
Sat, Jan-20-07, 08:37
If you've been in ketosis for a while, your body gets much more efficient at making only the ketones you require for energy and has less excess to spill is one potential reason; another is you're diluting ketones enough with adequate hydration; last is 50g-60g may be making you "teeter" in and out of ketosis rather than maintain continuous ketosis for energy needs.

I wouldn't worry much about it as long as you do not begin to gain weight.
Does it mean that one must stay in deep ketosis forever in order not to regain weight?

liddie01
Sat, Jan-20-07, 08:47
nope, ketosis is for losing weight, not maintaining, I am in pre matinence, and out of ketosis, but still losing,but at a slower rate.when I am happy with my goal, I will up my carbs to my CCL, critical carb level to stay there, mine is 95 carbs a day, YMMV

actorkent
Mon, Jan-22-07, 07:53
Aerobic definitely burns sugar better BUT by weight training you increase your muscle mass (sugar burning engine) so that your aerobic will be more efficacious. (work better). so do both?

I dont think anyone is getting my point about the ketosis state versus the 'carb state'? It SOUNDS better to have my body in a state that prefers to burn SUGAR. Doesnt it? Please.. at least agree that it SOUNDS better. The problem is i have to EAT more carbs to get into that state which means i end up with more sugar in my blood.. but.. could that be LESS BG than my liver is now producing?

Its all very confusing. Each body is different. the only solution is to be your own guinea pig. But going on higher carbs means COUNTING carbs.. ugh.. counting is rough.

wish someone would pick up on my real purpose for this Thread.. not communicating well.. sorry.

ubizmo
Mon, Jan-22-07, 08:23
Remember that you won't go into ketosis at all until your available stored sugar is pretty much depleted.

Aerobic exercise shouldn't burn glucose better, because anaerobic exercise uses more fast-twitch muscle fibers, which lack mitochondria and therefore *require* glucose. Aerobic exercise uses slow and intermediate fibers, which can burn either fat or glucose.

I suspect that the reason why anaerobic exercise drives BGs up is that it increases the *demand* for sugar, to which the carb-depleted body responds by increased gluconeogenesis (triggered by cortisol). Then, because we're IR, it takes longer to utilize the glucose that's produced, causing it to be produced longer, and BG rises.

As for being in a state that "prefers to burn sugar," your body *always* prefers to burn sugar, i.e., as soon as your BG goes up your body tries to utilize it. The trouble is that if you're diabetic or pre-diabetic (IR), you just don't utilize the sugar well.

dina1957
Mon, Jan-22-07, 10:25
Aerobic definitely burns sugar better BUT by weight training you increase your muscle mass (sugar burning engine) so that your aerobic will be more efficacious. (work better). so do both?
Yes, bu my point was - do weight lifting after a meal containing some carbs and never on empty stomach or 1st thing in the morning, to avoid BGs spike.

I dont think anyone is getting my point about the ketosis state versus the 'carb state'? It SOUNDS better to have my body in a state that prefers to burn SUGAR. Doesnt it? Please.. at least agree that it SOUNDS better. The problem is i have to EAT more carbs to get into that state which means i end up with more sugar in my blood.. but.. could that be LESS BG than my liver is now producing?
trial and error for everyone, try and see which "evil" does less harm. If I cut my carbs too low- DP gets worse and overall Bgs will be higher, if I eat some carbs at meal - it spike shortly but then drops fast too, and less DP.

Its all very confusing. Each body is different. the only solution is to be your own guinea pig. But going on higher carbs means COUNTING carbs.. ugh.. counting is rough.
I understand your point very well, I have been raising the same question myself amny times. I suspect that "idiotic" ADA and "stupid" doctors advise not to cut carbs too low for the same reasosn: gluconeogenesis!!! But no one can help you to find what works for your body, it is trial and error, diabetes is too complex and everyone's body is different. So keep trying, check BGs more often: before and after meals and exercise, fiddle with carbs: fruit is less evil than grains, it has fructose that needs to be converted into glucose, so it is less spike. Beans are not bad: green beans, kidney beans, black soy beans (very low carb). Again, play with food and exercise, and find the regimen that works for you. If nothing esle works, there are new meds and insulin (glardine) that do not make you put on weight and will lower your BGs.

wish someone would pick up on my real purpose for this Thread.. not communicating well.. sorry.
I am sorry if you feel like folks on this forum simply ignore your request, but i suggest you to browse the older threads, and you will see that we have been through this many, many time.
I also suggest Dr.Bernstein Forum, ppl there are gang-ho with the plan, and may be can explain things better.
http://www.diabetes-normalsugars.com/
regards,
D.

dina1957
Mon, Jan-22-07, 10:38
Remember that you won't go into ketosis at all until your available stored sugar is pretty much depleted.
True for healthy folks, but diabetic liver is working all the time due to lack of insulin, so it will convert protein into glucose if carbs not avaiable.

Aerobic exercise shouldn't burn glucose better, because anaerobic exercise uses more fast-twitch muscle fibers, which lack mitochondria and therefore *require* glucose. Aerobic exercise uses slow and intermediate fibers, which can burn either fat or glucose.
Aerobics (especially high intensity like running) burn glucose first (fast and easier burning fuel) and once glucogen is depleted, it will switch to burning fat (which is slow process). Hence, they recommend to go beyond 20-25 to achieve "fat burning" goal of exercise. So, for diabetics brisk short walk will drop Bgs but keep going for 2 hours, and Bgs will start to climb back up.

I suspect that the reason why anaerobic exercise drives BGs up is that it increases the *demand* for sugar, to which the carb-depleted body responds by increased gluconeogenesis (triggered by cortisol). Then, because we're IR, it takes longer to utilize the glucose that's produced, causing it to be produced longer, and BG rises.
Anaerobic exercise can utilize both fat and glucose without presence of oxygen, but since high intensity weight lifting deplets glucogen very fast, liver starts gluconeogenesis but there is now insulin to stop it. Also, weight lifting is very stressfull on body, so it releases cortisol, which further inhibits insulin action. WEight lifting has great benefits, it is just needs to be performed right and with caution for diabetics to achieve maximum benefits.
JMO

nawchem
Fri, Jan-26-07, 11:00
Does spiking blood sugar actually damage the body?

On a regular basis, not related to exercising, what bs levels do you start seeing damage?

Isn't all fat loss actually lipolysis meaning that you burned some bodyfat for fuel because you ran out of food energy?

I'm not eating LC right now, but low calories. I lost 10lbs in 2 weeks (I'm very active) my keto strips are reading ketones. I assume I'm in ketosis, although I eat over 70carbs/day, because I'm losing wt.

dina1957
Sat, Jan-27-07, 16:22
Does spiking blood sugar actually damage the body?
they say anything above 140 is toxic to the cells, it also depends how long the spike lasts.



Isn't all fat loss actually lipolysis meaning that you burned some bodyfat for fuel because you ran out of food energy?
may be, when calories are low and activity level is high, then body dippes into storage, I lose weight too when I eat less calories and/or exercise, the theory still applies