2

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Why do carbs even matter in ketosis?

Answered on August 19, 2014
Created April 16, 2012 at 2:00 PM

I was just wondering about why it matters whether you eat VLC or not when in Ketosis? If you eat an excess of carbs or fats, compared to your daily expenditure, you will gain weight. Same is true for net calorie deficits and losing weight. But if you have excess fat to burn on your body and you are only consuming 1200 calories a day, won't your body tap into these stores regardless of whether you are eating VLC or not? Basically, if you are eating less calories than you expend, whether they come from carbs/proteins/fats, won't your body still burn excess fats in the body to make up the rest of the energy you require?

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 17, 2012
at 07:59 AM

http://paleohacks.com/questions/112452/hack-one-of-my-many-qualms-with-high-fat-paleo#axzz1sCfbv32Q - what do you think of this question?

Medium avatar

(10663)

on April 16, 2012
at 04:09 PM

@mzrdnan, With 1200 calories from fruit, you will not be burning fat. With 1200 calories from coconut oil, probably yes, if you eat that way for 2 weeks so your body adjusts to burning fat. Either way, you will lose muscle without an adequate intake of protein. @Lard (mind if I call you that?), I was of course not referring to the glycogen in muscle but the protein (if you don't eat enough protein to sustain muscle mass).

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 04:08 PM

@primaldanny even if you exercise and whatnot? how does that happen? what about BMR just to keep your body alive? or if you do walking each day etc...does that occur only out of ketosis or on ketosis too?

77877f762c40637911396daa19b53094

(78467)

on April 16, 2012
at 03:44 PM

I should add that there is a misconception. Your body can only tap in to liver-gylcogen stores. The glycogen in your muscles cannot be liberated for general use. So you remain in ketosis if you completely drain muscle glycogen and then 3 baked potatoes.

Ccacf7567273244733bc991af4ac42ed

(5198)

on April 16, 2012
at 03:44 PM

You probably won't be burning 2200, it'll rapidly become much less

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 03:37 PM

i mean regardless of if that's 1200 from purely fruit or 1200 from purely coconut oil?

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 03:37 PM

but if you're eating at a constant 1200 cals a day but burning 2200, your body will have to source energy from somewhere no? that somewhere will always be your excess fat stores?

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4 Answers

4
Medium avatar

(10663)

on April 16, 2012
at 02:32 PM

As long as your body is getting a continued supply of carbs (which is ultimately broken down into glucose and converted into glycogen for storage), your body can and will tap into your glycogen stores for fuel. No carb intake means your body will use fat for energy (which is actually a more efficient source of fuel).
And your body will not tap into your fat stores just because you are eating less. In fact, it may do quite the opposite, where it thinks it is starving and saves fat for survival and your body may actually eat up precious muscle.
In the case of VLC, it's definitely more about what you put into your body than how much. But of course if you eat in excess, you will gain weight.

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 03:37 PM

i mean regardless of if that's 1200 from purely fruit or 1200 from purely coconut oil?

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 04:08 PM

@primaldanny even if you exercise and whatnot? how does that happen? what about BMR just to keep your body alive? or if you do walking each day etc...does that occur only out of ketosis or on ketosis too?

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 16, 2012
at 03:37 PM

but if you're eating at a constant 1200 cals a day but burning 2200, your body will have to source energy from somewhere no? that somewhere will always be your excess fat stores?

3b3a449b6705e9ec8b141d0bd07c1a64

(1489)

on April 17, 2012
at 07:59 AM

http://paleohacks.com/questions/112452/hack-one-of-my-many-qualms-with-high-fat-paleo#axzz1sCfbv32Q - what do you think of this question?

Ccacf7567273244733bc991af4ac42ed

(5198)

on April 16, 2012
at 03:44 PM

You probably won't be burning 2200, it'll rapidly become much less

Medium avatar

(10663)

on April 16, 2012
at 04:09 PM

@mzrdnan, With 1200 calories from fruit, you will not be burning fat. With 1200 calories from coconut oil, probably yes, if you eat that way for 2 weeks so your body adjusts to burning fat. Either way, you will lose muscle without an adequate intake of protein. @Lard (mind if I call you that?), I was of course not referring to the glycogen in muscle but the protein (if you don't eat enough protein to sustain muscle mass).

77877f762c40637911396daa19b53094

(78467)

on April 16, 2012
at 03:44 PM

I should add that there is a misconception. Your body can only tap in to liver-gylcogen stores. The glycogen in your muscles cannot be liberated for general use. So you remain in ketosis if you completely drain muscle glycogen and then 3 baked potatoes.

0
Ce238c1c555ef066b198216e229482e9

on October 18, 2012
at 06:13 AM

Spot on PrimalDanny. Undertake a short-term ketogenic diet with a trained professional and then gradually increase your carbohydrate intake over the course of another 5 or so weeks to ensure you maintain your goal weight & BF%. You will become more efficient at burning fat and hopefully learn what you need and create positive behaviours for long term weight loss.

Carbs matter mzrdnan as they will limit your fat burning capacity due to their preferential availability as a source of fuel.

0
Ccacf7567273244733bc991af4ac42ed

on April 16, 2012
at 03:50 PM

We usually mean keto-adaptation when we talk about ketosis - having been in a state with elevated ketones long enough that they are being used efficiently as fuel. We are of course burning fat constantly, there's a neverending flux of triglycerides in and out of our bloodstream. But in the presence of too many carbs this will remain secondary, and if forced to rely on it then the body will partially shut-down, conserve energy, you'll feel like crap and (for most people) give up on your 50% calorie restriction dieting. Then you'll start eating normally and your body will grab hold of all that lovely food.

Periodically being in ketosis appears to be perfectly natural and healthy, and possible even necessary for good long-term health. The body operates quite happily despite burning mostly fat, even its own.

0
Ba09704971e33481f5716c4790648966

(1794)

on April 16, 2012
at 02:49 PM

Ketosis means you have elevated ketone bodies. Everyone uses ketogenesis to form ketones, but It's just something that can be up regulated or down regulated, if I am not mistaken. Doesn't mean that your body doesn't use glucose still or you would probably die.

Anyway, so with the carbs and "ketosis" it's more about up regulating and down regulating the ketogenesis process. It doesn't directly relate to weight loss.

I could be completely wrong about that, though. So...

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