PG and eating low carb?

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booboo

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well I'm still losing weight, so I guess it's not a problem...yet.

Well I'm gaining for no apparent reason. Actually eating less than the normal 'not enough to keep a small child alive' amount that I always have. I feel like a bloated swollen dead cow................:( And no, it's not pms time. Life is so effing unfair:cry:
 
booboo, you might actually be gaining weight because you aren't eating enough. It can happen. Whatever your WOE, you should try to eat small amounts of food throughout the day and make sure you are eating enough. Eating very small amounts of food and relatively few calories can start weight loss for me, but then my body switches into some other process and my weight will start to go up although this is more extreme for me if I'm eating low fat. LOL....low fat and low cal packed a few pounds on me over the years! Good luck to you.

Margaret
 

waywardsister

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Mar 26, 2009
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Weighing in on this (ha ha)...

With no change in my eating habits, my weight is up a few pounds (water weight). I mentioned before that I eat very low carb, have done so for years. What I'm experiencing now with vaping is similar to what I experience if I carb out - a jump on the scale, and puffiness. I am experiencing a slight increase in appetite as well, very unusual for me on LC but very in line with what happens with increased carb intake (for me).

My concern is that if PG and/or VG is metabolized as glucose in the liver, my body is treating it as if I'm...well, eating carbs. My body does not like carbs very much :) I'm hoping this is temporary, I've only been at it a few weeks. I don't have much weight left to lose, but I'm also not happy about this side effect! I lost 30 lbs low carbing (ironically, at the same time that I quit smoking cold turkey - went back to smoking after a year).

I know that smokers do tend to have more of what I'll call a fat-burning metabolism, and I can't recall exactly why. Something to do with nicotine increasing lipolysis (breakdown of fat stored in cells).

This is interesting, and I'm going to keep an eye on this and see what happens. I hope other low carbers chime in regularly on it as well. I'm a bit of a nerd when it comes to food - I'm going to get some of my 'sciency' friends on this. In the meantime...off to find out exactly how our bodies deal with PG/VG. If it raises blood sugar readings in diabetics, this doesn't bode well for those of us with any degree of insulin resistance/metabolic syndrome, regardless of whether of not we manifest it as weight gain. If they are directly metabolized by the liver (like fructose), then...ok enough, off to research.

Anyone here read Taubes' work?
 

Flowersoul

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Hi

I've been a low carber for many years off and on.

I do understand your concern about the PG/VG as I have the same issue with feeling a bit bloated right now.
I've been vaping for almost 3 weeks.

My appetite is more or less the same. What I mean by that is it is not consistently more or less, but intermittently. I will admit that I have carbed out recently, and that may be the reason, but I am well aware that I need to keep tabs on this.

Basically, I've been maintaining the same weight for quite a long while, but I'd welcome any information your 'sciency' friends may have.

Let us know what you find!

Oh, and yes, Gary Taubes was on my book shelf until I gave it to my son-in-law. A fabulous and necessary read for all; low carb or otherwise.
 

waywardsister

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Mar 26, 2009
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So far I've found...nothing :)

In any case, I'm sticking with PG in my mixes for now. Maybe it was the VG that was the problem that seems to be metabolized as glucose, while PG goes through a bunch of other stuff (to put it 'sciency') Who knows. It's just really weird that my weight shot up, it's usually dead stable. Temporary side effect perhaps - maybe to do with not smoking tobacco so much rather than the e-cig? Hard to know when there's multiple variables.
 

waywardsister

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Ok - there's some questions about how much nicotine we actually absorb from vaping, so I wonder if that could be part of the effect for some of us. We're not getting as much nic as we're used to.

Nicotine increases insulin resistance and down-regulates lipoprotein lipase action on adipose (fat) tissue, and up-regulates lipoprotein lipase on muscles, leading to net outflow of fatty acids. Meaning, more fatty acids are leaving the fat tissue and entering the bloodstream (which is also the point of low carbing, it allows this to happen). Speeds up the flow.

However, I wonder about the PG. Propylene glycol undergoes metabolic oxidation to pyruvic acid,acetic acid, lactic acid, and propionaldehyde (according to Wikipedia). Glucose breaks down (partially, anyway) to lactic acid and to pyruvic acid as well.

In cows treated orally with PG, their serum glucose concentration increases - this negatively affects fat mobilization. Now we're not ingesting this, we're inhaling it - so is it affecting ours as well?

I don't know if anyone else cares, but I'm keeping this going. This is a concern for me. My weight hasn't budged upwards in YEARS. I am really hoping this is temporary. If my body is treating PG and/or VG as if I am eating carbs, it doesn't bode well for me.
 
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Flowersoul

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Oh dear, this is making perfect sense to me, and has me a bit concerned, also.

You mentioned that we may not be getting enough nicotine, and I have felt that, so have started ordering stronger doses, and that is helping a bit.

When I vape the lower nic levels, I'm constantly at it, but with the few higher ones that I have, I can put it down for a bit, which indicates to me that my nic level is satisfactory. If I have to, I'll get even higher ones, but it still does not address the PG/VG aspect.

Hope this testing of ours has a positive outcome, and in the meantime, I will continue my exercise 3x a week, and be very selective in my food intake.

Thanks for the update!

Good luck to both of us!!
 

taz3cat

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Nov 2, 2008
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I have diabics when I am really sick and now my blood sugar is back in the normal range. I have been spot checking for the last 3 months and it doesn't seen to vary that much. There will always be some variance. You have to determine your baseline range. The blood meters are cheap and easy to use. You don't have to make a big hole in your finger. Mine makes such a small ..... that I don't know where I did 30 minutes or less later.
 

taz3cat

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Nov 2, 2008
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I have never vaped fasting because I never had a cig untill after breakfast, unless it was an unusal occasion. I also have more variation on my morning fast than just before dinner.

Also if I go to the casino and don't eat lunch I get low blood sugar, sometimes, did this before vaping and still do it. A low carb diet keeps me from doing that. I still carry adkins endulge bars.

I am thinking about going back on a low carb. I am getting healthier and so has my appetite and eating too many carbs.
 

Rorschach

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Jun 13, 2008
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Ok - there's some questions about how much nicotine we actually absorb from vaping, so I wonder if that could be part of the effect for some of us. We're not getting as much nic as we're used to.

Nicotine increases insulin resistance and down-regulates lipoprotein lipase action on adipose (fat) tissue, and up-regulates lipoprotein lipase on muscles, leading to net outflow of fatty acids. Meaning, more fatty acids are leaving the fat tissue and entering the bloodstream (which is also the point of low carbing, it allows this to happen). Speeds up the flow.

However, I wonder about the PG. Propylene glycol undergoes metabolic oxidation to pyruvic acid,acetic acid, lactic acid, and propionaldehyde (according to Wikipedia). Glucose breaks down (partially, anyway) to lactic acid and to pyruvic acid as well.

In cows treated orally with PG, their serum glucose concentration increases - this negatively affects fat mobilization. Now we're not ingesting this, we're inhaling it - so is it affecting ours as well?

I don't know if anyone else cares, but I'm keeping this going. This is a concern for me. My weight hasn't budged upwards in YEARS. I am really hoping this is temporary. If my body is treating PG and/or VG as if I am eating carbs, it doesn't bode well for me.

We don't absorb enough nicotine? I feel like I OD accidentally every day on nicotine. Get light-headed and nauseous if i vape too much. But i just love the throat hit so much.

Has anybody found anything more on this topic? I'm thinking of going back on low carb next week and it'd be a shame if both PG and VG were not my friends anymore.
 

e-pipeman

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We don't absorb enough nicotine? I feel like I OD accidentally every day on nicotine. Get light-headed and nauseous if i vape too much. But i just love the throat hit so much.

Has anybody found anything more on this topic? I'm thinking of going back on low carb next week and it'd be a shame if both PG and VG were not my friends anymore.

For what it's worth I'm just finishing week 2 of induction and the ketostix are v.purple. I have also lost nine pounds and have(as usual) been vaping heavily throughout. So no probs at this end.:)
 

b12ad

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Apr 22, 2009
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So far so good, with no noticeable changes.

I've had a low carb lifestyle since 2004 and have had a stable weight for the last 3 years (after 115 lbs weight loss). I've been vaping regularly for over a month with no analogs, and so far there has been no change in weight or feeling (none of the "full of air" feeling I get when over doing it on the carbs). At first I had cravings for more food than usual when the e-cig wasn't working as well, but after getting my SD 3 weeks ago, the vaping has been great, since I get the same "feeling" I had with the analogs.

Hopefully the reaction you're having goes away soon - as I know it must be a drag! I wish the best of luck... and please do keep us posted.
 

delantus

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Apr 25, 2009
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Neither PG or VG follow the same pathway as glucose. Their immediate presence in the blood does not have the same effect on insulin or blood sugar.
Both are easily metabolized by the body. Glycerin is very common in the body. PG becomes lactic acid, which is also very common in the body.
Both can be used to make glucose intermediates, so can protein.
I would be more concerned about the effect of drinking half a glass of milk than I would be of how much PG or VG I'm taking in.
I have concerns about PG and VG, but blood sugar is not one of them.
 

waywardsister

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Mar 26, 2009
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All good to know! Congrats b12ad on your amazing weight loss ;) Delantus, can you point me to some info? It seems like they don't have an effect, so that's good, and I had a hard time finding anything that said that they wouldn't. I'm wondering if what I've experienced is either a side effect of lower nicotine than I'm used to, or a reaction to a certain flavouring.
 
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