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N.B. fasting in general works best if you are eating a high fat diet, instead of eating a lot a carbohydrates. You might also need more salt in your diet, inclu

N.B. fasting in general works best if you are eating a high fat diet, instead of eating a lot a carbohydrates. You might also need more salt in your diet, including during your fasting ;-) Carbohydrates leads to raised insulin levels, which inhibits the consumption of fat from your fat store. Our body is pretty smart, so when insulin goes down, it begins to consume your fat for energy, a metabolic state called ketosis. But until that insulin goes down, what you're experiencing is the dreaded keto flu. So you can experience fatigue, dizziness, even head aches ... which if serious are not normal and you should stop your fast ;-) Anyway, for successful fasting what I found is this: 1. eat high fat, low carbs meals; if you can't go full keto, at least do that just before starting your fast 2. you might get an electrolytes imbalance, which is THE reason for dizziness and headaches: the solution is to take salt supplements — e.g. right now I'm in my second day of water fasting, when I woke up I felt a little dizzy, but took 4 grams of salt (about one teaspoon) and now I feel great; there are also "salt tablets" on the market btw, which are easier to swallow NOTE: there's science behind the keto diet, studies and high profile medics backing it up, but there's also a lot of denial about it. One good book describing what the deal is with insulin resistance, why it makes us fat and why the keto diet is healthy would be the "The Obesity Code: Unlocking the Secrets of Weight Loss" by Dr. Jason Fung. Here's the podcast dedicated to it, talking of keto and fasting; it's a great podcast: http://obesitycodepodcast.com http://obesitycodepodcast.com

cageface 8y ago
It works fine with a carbohydrate diet too, provided by "carbohydrates" we mean healthy, complex carbs and not sugary junk. Professor Valter Longo has been getting a lot of buzz lately for this kind of intermittent fasting diet. His diet is low in protein and fat; he gets furious when he sees doctors advocating the opposite, a trendy practice he believes speeds aging. https://www.statnews.com/2017/06/13/fasting-diet-valter-longo/ https://www.statnews.com/2017/06/13/fasting-diet-valter-long...
- bad_user 8y ago
  There are only 3 macro-nutrients: fat, proteins and carbohydrates. If you go low fat, you necessarily go low protein too, so you need to replace that with carbohydrates. Even more, you now need "fortified" carbohydrates to get the needed B vitamins and other nutrients usually found in fatty foods, and those will be refined carbohydrates; which is what the American Health Association now recommends. Yes, they actually recommend that people should eat enriched cereals and other bullshit like that. A high carbs diet made of "healthy, complex carbs" is a myth ;-) > he gets furious when he sees doctors advocating the opposite, a trendy practice he believes speeds aging. You cannot claim that without evidence. Nutrition is at this point like alchemy and I won't trust furious alchemists.
  - cageface 8y ago
    Valter Longo is a tenured professor that's been nominated for a Nobel Prize based on his work in nutrition and fasting. I'd hardly call him an alchemist. There are lots of us living very healthy lives on this "mythical" high carb diet. The Okinawans, for example, before their diet was corrupted by processed western foods, got 85% of their calories from sweet potatoes and were the healthiest and longest lived people in the world. https://fanaticcook.com/2015/03/14/the-diet-of-okinawa-1949-low-fat-high-carb-very-little-meat/ https://fanaticcook.com/2015/03/14/the-diet-of-okinawa-1949-... The only B vitamin that's difficult to get on a high carb diet is B12. But that's only because we've removed the bacteria that produce it from our diet by sterilizing our water supplies and improving food hygiene. Animals also get it from bacteria and a lot of commercial meat has added B12. Check here for an exhaustive list of B vitamin sources: https://www.onegreenplanet.org/natural-health/b-vitamins-how-to-get-them-in-a-vegan-diet/ https://www.onegreenplanet.org/natural-health/b-vitamins-how...
    - mjewtoo 8y ago
      > Valter Longo is a tenured professor that's been nominated for a Nobel Prize based on his work in nutrition and fasting. I'd hardly call him an alchemist. Sorry but nominations for Nobel prizes are kept secret for 50 years. I highly doubt he was nominated the same year he was born. [0] https://www.nobelprize.org/nomination/medicine/ https://www.nobelprize.org/nomination/medicine/
yellow_viper 8y ago
What is N.B fasting? I do 16/8 I.F fasting on a HCLF diet and have never experienced any of those issues. There is plenty of evidence showing the benefits of ketosis on the body, and benefits from people switching from SAD to Keto reversing diabetes and the likes - but that's more down to calorie restriction. With regular keto you're raising your risk long-term for diabetes, heart-disease, cancer and stroke due to increased meat/dairy/egg consumption. https://nutritionfacts.org/video/what-causes-insulin-resistance/ https://nutritionfacts.org/video/what-causes-insulin-resista... You're far better just eating a varied diet with as little animal produce as possible and doing I.F which releases 5x the amount of ketones than the keto diet.
- bad_user 8y ago
  > I do 16/8 I.F fasting That's not enough to trigger those symptoms for many people, as it depends on how much salt you have in your diet and your own metabolism of course. But do a 36 to a 72 hours fasting, which is otherwise a very healthy thing to do from time to time and you'll experience it head on. >> "that's more down to calorie restriction" Why did the plane crash? Due to gravity. What should the plane have done to not go down? It should've had more lift. Now tell me, how does that help in establishing why the plane actually crashed and what to do to solve it? That's how "calorie restriction" sounds as an explanation, being a prima facie observation. Of course you're reducing calories. But HOW you're reducing those calories makes all the difference. Another one: Why do people get rich? Because their spending are less than their earnings. What should people do to get rich? They should cut their spending or raise their earnings. Well duh! But it's a totally useless observation, isn't it? >> "With regular keto you're raising your risk long-term for diabetes, heart-disease, cancer and stroke due to increased meat/dairy/egg consumption." That's absolute bullshit. Here's one of the largest studies on dietary fat, done on 50,000 women, spanning for 8 years, showing that going low fat did absolutely nothing to prevent heart disease: https://www.ncbi.nlm.nih.gov/pubmed/28515068 https://www.ncbi.nlm.nih.gov/pubmed/28515068 I also wish people would stop posting YouTube videos btw. I don't watch YouTube bullshit. Post links to studies that I can verify.
  - yellow_viper 8y ago
herghost 8y ago
Keto absolutely works. The first time I did it was from sedentary and about 60lbs overweight. It felt like a life hack how fast I was losing weight. Fast forward to a new, leaner, me and I try exercising properly. On Keto there's no way I can exercise. Whilst I felt fine day to day and had a clear head, anything more energetic than walking was a huge effort. Years later, having dropped keto, a friend and I were very heavily into mid-distance running (10k and half marathon). We weren't particularly fast, but we were doing probably 50k per week training and several events per year. We decided to do a burst of keto to try to drop a few more pounds whilst maintaining the running since we'd seen some blog posts claiming it was possible to avoid the lack of energy. First run post keto went from us running routine 55minute 10k to me abandoning the run altogether part way through at 64minutes because I was in agony. tl;dr keto + exercise may not work for everyone
- mft_ 8y ago
  I had a similar experience when trying a keto diet - I struggled to cycle up a single short hill on my commute home, despite being a moderately-fit regular cyclist. Bringing the carbs back in solved this. YMMV. It's interesting that even some of the more pro-keto/paleo/primal blogs often recommend carbs (albeit appropriate quantities) to support any significant level of exercise.

cageface 8y ago

It works fine with a carbohydrate diet too, provided by "carbohydrates" we mean healthy, complex carbs and not sugary junk. Professor Valter Longo has been getting a lot of buzz lately for this kind of intermittent fasting diet. His diet is low in protein and fat; he gets furious when he sees doctors advocating the opposite, a trendy practice he believes speeds aging. https://www.statnews.com/2017/06/13/fasting-diet-valter-longo/ https://www.statnews.com/2017/06/13/fasting-diet-valter-long...

bad_user 8y ago
There are only 3 macro-nutrients: fat, proteins and carbohydrates. If you go low fat, you necessarily go low protein too, so you need to replace that with carbohydrates. Even more, you now need "fortified" carbohydrates to get the needed B vitamins and other nutrients usually found in fatty foods, and those will be refined carbohydrates; which is what the American Health Association now recommends. Yes, they actually recommend that people should eat enriched cereals and other bullshit like that. A high carbs diet made of "healthy, complex carbs" is a myth ;-) > he gets furious when he sees doctors advocating the opposite, a trendy practice he believes speeds aging. You cannot claim that without evidence. Nutrition is at this point like alchemy and I won't trust furious alchemists.
- cageface 8y ago
  Valter Longo is a tenured professor that's been nominated for a Nobel Prize based on his work in nutrition and fasting. I'd hardly call him an alchemist. There are lots of us living very healthy lives on this "mythical" high carb diet. The Okinawans, for example, before their diet was corrupted by processed western foods, got 85% of their calories from sweet potatoes and were the healthiest and longest lived people in the world. https://fanaticcook.com/2015/03/14/the-diet-of-okinawa-1949-low-fat-high-carb-very-little-meat/ https://fanaticcook.com/2015/03/14/the-diet-of-okinawa-1949-... The only B vitamin that's difficult to get on a high carb diet is B12. But that's only because we've removed the bacteria that produce it from our diet by sterilizing our water supplies and improving food hygiene. Animals also get it from bacteria and a lot of commercial meat has added B12. Check here for an exhaustive list of B vitamin sources: https://www.onegreenplanet.org/natural-health/b-vitamins-how-to-get-them-in-a-vegan-diet/ https://www.onegreenplanet.org/natural-health/b-vitamins-how...
  - mjewtoo 8y ago
    > Valter Longo is a tenured professor that's been nominated for a Nobel Prize based on his work in nutrition and fasting. I'd hardly call him an alchemist. Sorry but nominations for Nobel prizes are kept secret for 50 years. I highly doubt he was nominated the same year he was born. [0] https://www.nobelprize.org/nomination/medicine/ https://www.nobelprize.org/nomination/medicine/

yellow_viper 8y ago

What is N.B fasting? I do 16/8 I.F fasting on a HCLF diet and have never experienced any of those issues. There is plenty of evidence showing the benefits of ketosis on the body, and benefits from people switching from SAD to Keto reversing diabetes and the likes - but that's more down to calorie restriction. With regular keto you're raising your risk long-term for diabetes, heart-disease, cancer and stroke due to increased meat/dairy/egg consumption. https://nutritionfacts.org/video/what-causes-insulin-resistance/ https://nutritionfacts.org/video/what-causes-insulin-resista... You're far better just eating a varied diet with as little animal produce as possible and doing I.F which releases 5x the amount of ketones than the keto diet.

bad_user 8y ago
> I do 16/8 I.F fasting That's not enough to trigger those symptoms for many people, as it depends on how much salt you have in your diet and your own metabolism of course. But do a 36 to a 72 hours fasting, which is otherwise a very healthy thing to do from time to time and you'll experience it head on. >> "that's more down to calorie restriction" Why did the plane crash? Due to gravity. What should the plane have done to not go down? It should've had more lift. Now tell me, how does that help in establishing why the plane actually crashed and what to do to solve it? That's how "calorie restriction" sounds as an explanation, being a prima facie observation. Of course you're reducing calories. But HOW you're reducing those calories makes all the difference. Another one: Why do people get rich? Because their spending are less than their earnings. What should people do to get rich? They should cut their spending or raise their earnings. Well duh! But it's a totally useless observation, isn't it? >> "With regular keto you're raising your risk long-term for diabetes, heart-disease, cancer and stroke due to increased meat/dairy/egg consumption." That's absolute bullshit. Here's one of the largest studies on dietary fat, done on 50,000 women, spanning for 8 years, showing that going low fat did absolutely nothing to prevent heart disease: https://www.ncbi.nlm.nih.gov/pubmed/28515068 https://www.ncbi.nlm.nih.gov/pubmed/28515068 I also wish people would stop posting YouTube videos btw. I don't watch YouTube bullshit. Post links to studies that I can verify.
- yellow_viper 8y ago

herghost 8y ago

Keto absolutely works. The first time I did it was from sedentary and about 60lbs overweight. It felt like a life hack how fast I was losing weight. Fast forward to a new, leaner, me and I try exercising properly. On Keto there's no way I can exercise. Whilst I felt fine day to day and had a clear head, anything more energetic than walking was a huge effort. Years later, having dropped keto, a friend and I were very heavily into mid-distance running (10k and half marathon). We weren't particularly fast, but we were doing probably 50k per week training and several events per year. We decided to do a burst of keto to try to drop a few more pounds whilst maintaining the running since we'd seen some blog posts claiming it was possible to avoid the lack of energy. First run post keto went from us running routine 55minute 10k to me abandoning the run altogether part way through at 64minutes because I was in agony. tl;dr keto + exercise may not work for everyone

mft_ 8y ago
I had a similar experience when trying a keto diet - I struggled to cycle up a single short hill on my commute home, despite being a moderately-fit regular cyclist. Bringing the carbs back in solved this. YMMV. It's interesting that even some of the more pro-keto/paleo/primal blogs often recommend carbs (albeit appropriate quantities) to support any significant level of exercise.