Fasting after carb up?

[Schoonie]

Just wanna hear some thoughts on the idea.

[influenceofu]

What is your main goal here? Losing weight or gaining muscle? Also, how long are you planning on fasting? Fasting, especially for extended periods, usually leads to some muscle loss. Why is it that you want to fast?

[consolesolution]

i was thinking about doing this as well, not fasting but eating very few calories besides my 1g protein per pound LBM

so like 5 cans of tuna. : = 110 g protein

then have a casein shake before bed.

that should handle any excess calories (or fat) gained on the carb up days and not loose any muscle.

[Cumulonimbus]

Why...?

[womanoid]

You're one of the ones that binge and call it a carb-up, right?

EDIT: Nevermind, I know who I'm confusing you with.

[Cumulonimbus]

You're one of the ones that binge and call it a carb-up, right?

I would assume so!

[Schoonie]

:/ Brutal feedback

[Cumulonimbus]

Well why would you fast? You think carbs make you fat?

[humzah]

I don't think fasting after a carb up would have any particular benefit OR side-effect.

[MASSter]

Have a true carb-up/refeed with slightly increased calories instead of binging. Then you wouldn't have to do something this extreme the following day. Might be easier to just stick your finger down your throat before you go to bed on carb up night(not srs).

[Inthearena]

I'm guessing the goal would be to get in ketosis faster? I'm not sure how that would make sense.

[mannydawg]

Fasting after a carb up makes no sense as ketosis will still be reached at the same speed as if not fasting because if OP goes back on a ketogenic diet he will not be ingesting many carbs. If anything it will just yield more fat loss if he fasts but at what cost.

[corx3]

The metabolism of ketogenic dieting is supposed to mimic the metabolism of starvation (e.g. fat stores are primary fuel source) without actually starving. Therefore, OP, I'd assume that fasting directly after a carb compensation would speed up the abolishment of glycolysis and restablish ketosis faster. After a carb up, you're going to be in glycolysis for sure. A limited fast isn't that bad of an idea. However, I would do your fast day IF style and meet your macros after working out fasted if reestablishing keto quickly is your goal.

If you're in glycolysis after your carb up (AND YOU DAMN WELL SHOULD BE FFS) then you won't be ketogenic for at least a little bit. Fasted training and an IF style day wouldn't only speed this up I'd assume.

I actually do this every Sunday. I fast from roughly 8 PM Saturday (When carb up ends) to 6 PM the next day, where I ingest some fats and protein at the typical keto ratio (65/30) then do a 5 mile run followed up by 45 burpees. I am always in keto by Monday and can then deplete the rest of my glycogen as I please! My only limitation is I always fully deplete on Friday. My fat loss in fantastic, and I've actually put on a little myofibrillar weight

[Schoonie]

Much better feed back . Im on the fence with it. Ill see how i feel tomorrow. But if i dont fast my calorie intake is gunna be half. Round 1k total

[humzah]

The metabolism of ketogenic dieting is supposed to mimic the metabolism of starvation (e.g. fat stores are primary fuel source) without actually starving. Therefore, OP, I'd assume that fasting directly after a carb compensation would speed up the abolishment of glycolysis and restablish ketosis faster. After a carb up, you're going to be in glycolysis for sure. A limited fast isn't that bad of an idea. However, I would do your fast day IF style and meet your macros after working out fasted if reestablishing keto quickly is your goal.

If you're in glycolysis after your carb up (AND YOU DAMN WELL SHOULD BE FFS) then you won't be ketogenic for at least a little bit. Fasted training and an IF style day wouldn't only speed this up I'd assume.

I actually do this every Sunday. I fast from roughly 8 PM Saturday (When carb up ends) to 6 PM the next day, where I ingest some fats and protein at the typical keto ratio (65/30) then do a 5 mile run followed up by 45 burpees. I am always in keto by Monday and can then deplete the rest of my glycogen as I please! My only limitation is I always fully deplete on Friday. My fat loss in fantastic, and I've actually put on a little myofibrillar weight

hmm. this sounds interesting...no harm in trying

[MHSETRadTech]

I like to fast after carb ups bc I usually feel like crap and am bloated. Eating just makes me feel worse.

[Psyfactor312]

How long would you fast for -the whole day? That would be brutal on the muscles.
I do IF and have a decent keto meal at the end of the first keto-day.
It doesn't really make a difference if you have keto meals or fast as long as you are keeping your carbs low (below 30) because insulin levels are low - you get into ketosis in 1-3 days depending on how big your carb up was.
What I realized is that you "demonstrate" being in ketosis on your ketostix if you eat very high fat, but at what cost if you are not calories your macros and just stuffing yourself unnecessarily for a stupid colour.
Getting fat to reach ketosis, to lose,...what sense does that make?
When you have been doing keto for some time you'll realize that your body tells you when you are in ketosis (p.e ammonium breath), while the stix may not be positive, because you are using up those ketones.
I have tried 20g and 30g of carbs for the first few days after carb up and it didn't make a difference when I got into ketosis.

So fasting entirely would IMO rather be destructive and why kill yourself when you can reach the same goal with keto meals.

[Cumulonimbus]

How long would you fast for -the whole day? That would be brutal on the muscles.
I do IF and have a decent keto meal at the end of the first keto-day.
It doesn't really make a difference if you have keto meals or fast as long as you are keeping your carbs low (below 30) because insulin levels are low - you get into ketosis in 1-3 days depending on how big your carb up was.
What I realized is that you "demonstrate" being in ketosis on your ketostix if you eat very high fat, but at what cost if you are not calories your macros and just stuffing yourself unnecessarily for a stupid colour.
Getting fat to reach ketosis, to lose,...what sense does that make?
When you have been doing keto for some time you'll realize that your body tells you when you are in ketosis (p.e ammonium breath), while the stix may not be positive, because you are using up those ketones.
I have tried 20g and 30g of carbs for the first few days after carb up and it didn't make a difference when I got into ketosis.

So fasting entirely would IMO rather be destructive and why kill yourself when you can reach the same goal with keto meals.

24 hour fast ain't going to strip your muscles, bro.

[humzah]

How long would you fast for -the whole day? That would be brutal on the muscles.
I do IF and have a decent keto meal at the end of the first keto-day.
It doesn't really make a difference if you have keto meals or fast as long as you are keeping your carbs low (below 30) because insulin levels are low - you get into ketosis in 1-3 days depending on how big your carb up was.
What I realized is that you "demonstrate" being in ketosis on your ketostix if you eat very high fat, but at what cost if you are not calories your macros and just stuffing yourself unnecessarily for a stupid colour.
Getting fat to reach ketosis, to lose,...what sense does that make?
When you have been doing keto for some time you'll realize that your body tells you when you are in ketosis (p.e ammonium breath), while the stix may not be positive, because you are using up those ketones.
I have tried 20g and 30g of carbs for the first few days after carb up and it didn't make a difference when I got into ketosis.

So fasting entirely would IMO rather be destructive and why kill yourself when you can reach the same goal with keto meals.

i don't think you have to fast the ENTIRE day to get back into ketosis IMO. Of course, each individual's body is different. I usually go back to eating my suual breakfast and meals after a carb-up.

Edit: like the poster above me said, a 24 hour fast won't have much of an impact on your muscle though if you over-do it, obviously, it will

[mannydawg]

24 hour fast ain't going to strip your muscles, bro.

this,

I have 24 hour fasts quite often and I have suffered no ill effects from it.

[Psyfactor312]

I didn't say 24 hours. The days are counted differently when on the Warrior Diet (IF).
If I have my meal of the day every day at 20:00 that is already 24 hours and does no harm.
What I meant is if you quitted that meal also.
Probably that wouldn't kill your muscles either, but I think you would be weak and your workouts not so efficient, which is not our goal when we want to build or maintain muscle.

But what I was basically saying is that it doesn't make a difference if you have a meal that doesn't raise insulin or nothing at all, so why torture yoursef after a a carb up, if you can enjoy a keto meal like eggs for breakfast.

I don't have breakfast, because I never did - it's everyone's choice. ( I do IF every day not just after carbup)

[zstanton]

I didn't say 24 hours. The days are counted differently when on the Warrior Diet (IF).
If I have my meal of the day every day at 20:00 that is already 24 hours and does no harm.
What I meant is if you quitted that meal also.
Probably that wouldn't kill your muscles either, but I think you would be weak and your workouts not so efficient, which is not our goal when we want to build or maintain muscle.

But what I was basically saying is that it doesn't make a difference if you have a meal that doesn't raise insulin or nothing at all, so why torture yoursef after a a carb up, if you can enjoy a keto meal like eggs for breakfast.

I don't have breakfast, because I never did - it's everyone's choice. ( I do IF every day not just after carbup)

been there done that it's fine

just don't do it multiple times a week

[ananf72]

been there done that it's fine

just don't do it multiple times a week

Question... as to this post and another thread a guy asked on fasting for 24 hrs 2 X week (while his other days were still in deficit). Am reading conflicting info. If the goal is to try to lose a small amt of fat and still preserve as much muscle as possible would or would not a 24 hour fast several times a week result in muscle loss 'if combined with the remaining days result in a large overall deficit'?

[ADHD77]

Well why would you fast? You think carbs make you fat?

Carbs even good carbs, if not utilized will turn into glucose and create inflammation in the body. Which in turn is where you get the belly fat and the dad bod that you see everywhere, so YES Carbs can make you fat!