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> Adding ghee or coconut oil in black coffee means it’s no longer effectively zero calories, and this is not technically fasting. I guess it depends on how you

> Adding ghee or coconut oil in black coffee means it’s no longer effectively zero calories, and this is not technically fasting. I guess it depends on how you choose to define your "technical" terms. For example (https://www.bulletproof.com/diet/bulletproof-diet/bulletproof-coffee-intermittent-fasting/ https://www.bulletproof.com/diet/bulletproof-diet/bulletproo...): "The technical definition of “fasting” describes not consuming a single calorie. When your body isn’t burdened with the task of digestion all day every day, it has a chance to carry out cleaning and repair processes that make you healthier. This cleanup and repair process is called autophagy. Depending on your diet, intermittent fasting can also put you in a fat-burning state called ketosis.[2] Learn more about the benefits of intermittent fasting. The good news is that there’s no scientific reason to completely restrict calories to reap the benefits of intermittent fasting. If you only consume fat (no protein or carbs) during your fast, you won’t interrupt autophagy. You’ll also stay in the fat-burning state of ketosis." (I have no opinion on any of this except that I'm amused by hobby nutritionists.)

xorcist 6y ago
Please take care when your Internet nutritionist calls ketosis a "fat-burning state". While true, it's also a lot like calling the Internet a "photon transport mechanism". If you experiment with such things, make sure you get the whole picture and is otherwise healthy. Ask anyone with diabetes why.
- tom_mellior 6y ago
  Vague hints to "get the whole picture" or to "educate yourself" without pointing to approved sources are always bad moves in Internet discussions. But here especially: Skimming the top 10 DuckDuckGo results for "ketosis fat-burning", I'm getting the impression that you would not approve of most of them.
  - xorcist 6y ago
    It should not be of interest to others what I personally would approve of. I don't hand out nutritionist advice on the Internet. The body is an amazing machine. It's still a good idea to at least try to understand the basic processes before making experiments on it. At least understand how ketosis works and why it isn't our default mode of metabolism. While there certainly are people who feel that it is helping them, others would be actively hurt by it. Results on one individual can not be extrapolated into some sort of universal cure. The fact that such advice can be readily found on the Internet anyway probably shouldn't come as a surprise though.
    - throwaway_jobs 6y ago
      > At least understand how ketosis works and why it isn't our default mode of metabolism It is the default metabolism. 1. All things being equal if you do not introduce any calories into your body you will naturally be in ketosis. 2. The only way to be kicked out of ketosis is to elevate blood glucose levels/spike insulin. Sure that is nearly everyone now, but that doesn’t make it the Body’s default...you need to eat a certain way for that to happen, historically there really wouldn’t have been a ton of available options to Eat Foods to kick humans out of ketosis until humans began farming grains and cereals. 3. Perhaps most importantly your brain can run off of ketones or glucose, very few things can cross the blood brain barrier, and ketones are far more efficient at crossing the blood brain barrier and powering the brain.
- HighlandSpring 6y ago
  Can you elaborate?
- beagle3 6y ago
  T1 diabetic people are at risk for ketoacidosis, which is a different condition than ketosis. The important issues I found have to do with “keto flu” (you have to supplement elctrolytes or you’re likely to feel bad with weird symptoms for the first few weeks) and with some pre existing conditions; otherwise keto (and IF) seem to be as safe as any other diet, and likely much healthier. Did you reach other conclusions?
m0zg 6y ago
> it has a chance to carry out cleaning and repair processes that make you healthier Sounds like Goop-grade quack science to me. :-)
- bfieidhbrjr 6y ago
  It isn't. You can read books about fasting or do the autophagy class on EdX. Professor in Tokyo got a Nobel for outlining the mechanisms a few years ago.

xorcist 6y ago

Please take care when your Internet nutritionist calls ketosis a "fat-burning state". While true, it's also a lot like calling the Internet a "photon transport mechanism". If you experiment with such things, make sure you get the whole picture and is otherwise healthy. Ask anyone with diabetes why.

tom_mellior 6y ago
Vague hints to "get the whole picture" or to "educate yourself" without pointing to approved sources are always bad moves in Internet discussions. But here especially: Skimming the top 10 DuckDuckGo results for "ketosis fat-burning", I'm getting the impression that you would not approve of most of them.
- xorcist 6y ago
  It should not be of interest to others what I personally would approve of. I don't hand out nutritionist advice on the Internet. The body is an amazing machine. It's still a good idea to at least try to understand the basic processes before making experiments on it. At least understand how ketosis works and why it isn't our default mode of metabolism. While there certainly are people who feel that it is helping them, others would be actively hurt by it. Results on one individual can not be extrapolated into some sort of universal cure. The fact that such advice can be readily found on the Internet anyway probably shouldn't come as a surprise though.
  - throwaway_jobs 6y ago
    > At least understand how ketosis works and why it isn't our default mode of metabolism It is the default metabolism. 1. All things being equal if you do not introduce any calories into your body you will naturally be in ketosis. 2. The only way to be kicked out of ketosis is to elevate blood glucose levels/spike insulin. Sure that is nearly everyone now, but that doesn’t make it the Body’s default...you need to eat a certain way for that to happen, historically there really wouldn’t have been a ton of available options to Eat Foods to kick humans out of ketosis until humans began farming grains and cereals. 3. Perhaps most importantly your brain can run off of ketones or glucose, very few things can cross the blood brain barrier, and ketones are far more efficient at crossing the blood brain barrier and powering the brain.
HighlandSpring 6y ago
Can you elaborate?
beagle3 6y ago
T1 diabetic people are at risk for ketoacidosis, which is a different condition than ketosis. The important issues I found have to do with “keto flu” (you have to supplement elctrolytes or you’re likely to feel bad with weird symptoms for the first few weeks) and with some pre existing conditions; otherwise keto (and IF) seem to be as safe as any other diet, and likely much healthier. Did you reach other conclusions?

m0zg 6y ago

> it has a chance to carry out cleaning and repair processes that make you healthier Sounds like Goop-grade quack science to me. :-)

bfieidhbrjr 6y ago
It isn't. You can read books about fasting or do the autophagy class on EdX. Professor in Tokyo got a Nobel for outlining the mechanisms a few years ago.