Halls answer to this criticism6 day diet? Who embarks on a 6 day weight loss diet? It take up to 3/4 weeks before the body really gets into ketosis.....
Halls answer to this criticism
Another complaint is that the study only lasted for 6 days and therefore was not long enough for subjects to become “fat adapted”. However, it actually takes less than a week to reach a plateau in mobilizing fat from adipose tissue to provide the fuel required to support the increased fat oxidation which also reaches a plateau within 1 week. Many previous studies have observed this rapid transition to increase fat metabolism and it was also observed in our study with the RC diet. There is no evidence that fat oxidation increases after the first several days of cutting carbohydrates. However, this does not negate the fact that longer time periods, perhaps weeks, may be required to optimize exercise performance or improve general feelings of well-being on low carbohydrate diets. This is what most people mean when they say “fat adapted”, but exercise performance and cognitive function were not important for our study results.
http://www.weightymatters.ca/2015/08/guest-post-dr-kevin-hall-asks-is.html
(This is the post I actually wanted to link to rather than the interview above, I couldn't find it earlier)
Halls answer to this criticism
Another complaint is that the study only lasted for 6 days and therefore was not long enough for subjects to become “fat adapted”. However, it actually takes less than a week to reach a plateau in mobilizing fat from adipose tissue to provide the fuel required to support the increased fat oxidation which also reaches a plateau within 1 week. Many previous studies have observed this rapid transition to increase fat metabolism and it was also observed in our study with the RC diet. There is no evidence that fat oxidation increases after the first several days of cutting carbohydrates. However, this does not negate the fact that longer time periods, perhaps weeks, may be required to optimize exercise performance or improve general feelings of well-being on low carbohydrate diets. This is what most people mean when they say “fat adapted”, but exercise performance and cognitive function were not important for our study results.
http://www.weightymatters.ca/2015/08/guest-post-dr-kevin-hall-asks-is.html
(This is the post I actually wanted to link to rather than the interview above, I couldn't find it earlier)
I have tried both low carb and low fat diets. I am a T2 with insulin resistance. The 5 day high fat diet was incredible for weight loss for me. I can only say what works for me. The low fat 600 cals mostly carbs diet (7 weeks) was nowhere near as good as the high fat one.
Details of both are here:-
http://www.diabetes.co.uk/forum/threads/my-5-day-dairy-fat-fast.81433/
I did not cut calories during the fat fast, in fact I almost doubled my normal calorie intake. In short, I'm not bothered by what scientists or studies say, in my case seeing is believing, that's enough metabolic reason for me to reduce carbs and increase fat. Then there's all the extra energy and the feel good factor.
edit: Fats are necessary for good health, carbs are not, it makes sense to cut the carbs and keep the fats.
Did the study say whether any of the participants had insulin resistance? Insulin resistance stops the glucose getting into your muscle cells for energy, and instead stores it as fat - triglycerides, the worst type!
I know it doesn't work for everyone, but low carb suits me best - and believe me, in more than 50 years of dieting I've tried 'em all! One size does not fit all, when it comes to diet. I wish the scientists would just admit it and chill a bit.
Viv13
Did the study say whether any of the participants had insulin resistance? Insulin resistance stops the glucose getting into your muscle cells for energy, and instead stores it as fat - triglycerides, the worst type!
I know it doesn't work for everyone, but low carb suits me best - and believe me, in more than 50 years of dieting I've tried 'em all! One size does not fit all, when it comes to diet. I wish the scientists would just admit it and chill a bit.
Viv13
And what we found was that indeed, if you cut carbs, insulin goes down, fat burning by the body goes up, and you lose fat. Perhaps the most surprising thing was when you cut fat from the diet, nothing happens to the number of fat calories you’re burning, nothing happens to insulin, and in fact, if you look at the difference between the fat eaten and fat burned, both diets led to fat loss, but the reduced-fat diet led to slightly more fat loss.
Lucky?!!! I think not. I have been trying to lose weight for 25 years! Only in the last few years have I realised that reducing carbs was the answer.You're one of the lucky ones.
It doesn't matter what it is, if I eat even too much fat, I'll still gain weight.
Well, if I don't continually count the calories, even if it's just fat, I know where my weight is heading!Lucky?!!! I think not. I have been trying to lose weight for 25 years! Only in the last few years have I realised that reducing carbs was the answer.
I suppose the one good thing is that I've learnt to stop eating when I have had enough and only count calories nowadays to make sure I have had enough; I spent so many years cutting down that there's always the urge to not bother eating, and that's not good for the metabolism. The only calorie rule I have is that I have at least 1200 a day, no maximum, though I don't think I would ever go much above 2200 anyway.Well, if I don't continually count the calories, even if it's just fat, I know where my weight is heading!
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