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>Those low carb diets are also diets that reduce your ability to engage in strenuous activities That's because low carb diets cause stored glycogen in muscles

>Those low carb diets are also diets that reduce your ability to engage in strenuous activities That's because low carb diets cause stored glycogen in muscles to be shed. That glycogen is used by the muscles for immediate energy during anaerobic exercise (e.g., weight lifting) when a sudden burst of energy is needed. It has less effect on aerobic exercise like running. You can still lift heavy things in a glycogen-depleted state; you will be come fatigued sooner, though. >and cause muscle wasting That's not really true. Extremely low carb diets were in use by body builders during the cutting phase of their routines for decades before they gained any sort of mainstream popularity, specifically because they they allow retention of muscle mass while shedding fat.

papsosouid 14y ago
>That's because low carb diets cause stored glycogen in muscles to be shed Uh huh. >That's not really true Yes it is. Bodybuilders cut with low fat, not low carb. http://www.bodyrecomposition.com/nutrition/how-many-carbohydrates-do-you-need.html http://www.bodyrecomposition.com/nutrition/how-many-carbohyd...
- commandar 14y ago
  Are you seriously citing Lyle McDonald as proof that low carb diets lead to muscle wasting? >If glucose requirements are high but glucose availability is low, as in the initial days of fasting, the body will break down its own protein stores to produce glucose. This is probably the origin of the concept that low carbohydrate diets are muscle wasting. As discussed in the next chapter, an adequate protein intake during the first weeks of a ketogenic diet will prevent muscle loss by supplying the amino acids for gluconeogenesis that would otherwise come from body proteins. http://membres.multimania.fr/robody3/Ebooks/The_Ketogenic_Diet.pdf http://membres.multimania.fr/robody3/Ebooks/The_Ketogenic_Di... >Bodybuilders cut with low fat, not low carb It's a surprisingly common topic of discussion for something that's supposedly not done. https://www.google.com/search?q=site%3Abodybuilding.com+keto&aq=f&oq=site%3Abodybuilding.com+keto&aqs=chrome.0.57j58.75524&sourceid=chrome&ie=UTF-8 https://www.google.com/search?q=site%3Abodybuilding.com+keto... CKD and TKD with specific carb ups to replenish glycogen stores are more common, but there are people that do it with purely ketogenic diets, as well.
  - papsosouid 14y ago
    >Are you seriously citing Lyle McDonald as proof that low carb diets lead to muscle wasting? I don't even know how to answer such a nonsensical question. Are you upset that a proponent of low carb diets actually knows what he is talking about and doesn't lie? >It's a surprisingly common topic of discussion for something that's supposedly not done. Your evidence of what bodybuilders did decades ago is that people have started talking about doing it in the last few years? Seriously?
    - commandar 14y ago
      >Are you upset that a proponent of low carb diets actually knows what he is talking about and doesn't lie? No, I'm saying that McDonald does not say what you're claiming he does. Low carb diets will not lead to muscle loss simply because they're low carb. McDonald even says as much in the article you linked. >I’d also note that, as long as protein intake is sufficiently high (e.g. the diet is covering the increased breakdown of protein in the liver and elsewhere), the amount of carbohydrates which are truly required is still zero. Low carb diets can lead to muscle wasting, but that's the case with any diet -- which is something else McDonald had said. The only thing I'm taking issue with is the assertion that low carbohydrate intake necessarily causes muscle wasting. >Your evidence of what bodybuilders did decades ago is that people have started talking about doing it in the last few years? Again, if you're going to cite McDonald, this is something he covers in the first chapter of his book. EDIT: I hadn't even seen the handy chart he includes at the bottom of that article. He recommends 50-100g of carbs per day to avoid muscle loss with no additional intake required to maintain light exercise. Those values are firmly within the low carbohydrate intake range. Seriously, it's rather uncouth to imply the person you're talking to is lying when you're completely misrepresenting the sources you've cited yourself.
      - papsosouid 14y ago
        You might want to go back and read the thread. Low carb diets used to lose weight and manage epilepsy are no where even remotely close to 50-100g of carbs a day. Many set limits as low as 10g a day.

papsosouid 14y ago

>That's because low carb diets cause stored glycogen in muscles to be shed Uh huh. >That's not really true Yes it is. Bodybuilders cut with low fat, not low carb. http://www.bodyrecomposition.com/nutrition/how-many-carbohydrates-do-you-need.html http://www.bodyrecomposition.com/nutrition/how-many-carbohyd...

commandar 14y ago
Are you seriously citing Lyle McDonald as proof that low carb diets lead to muscle wasting? >If glucose requirements are high but glucose availability is low, as in the initial days of fasting, the body will break down its own protein stores to produce glucose. This is probably the origin of the concept that low carbohydrate diets are muscle wasting. As discussed in the next chapter, an adequate protein intake during the first weeks of a ketogenic diet will prevent muscle loss by supplying the amino acids for gluconeogenesis that would otherwise come from body proteins. http://membres.multimania.fr/robody3/Ebooks/The_Ketogenic_Diet.pdf http://membres.multimania.fr/robody3/Ebooks/The_Ketogenic_Di... >Bodybuilders cut with low fat, not low carb It's a surprisingly common topic of discussion for something that's supposedly not done. https://www.google.com/search?q=site%3Abodybuilding.com+keto&aq=f&oq=site%3Abodybuilding.com+keto&aqs=chrome.0.57j58.75524&sourceid=chrome&ie=UTF-8 https://www.google.com/search?q=site%3Abodybuilding.com+keto... CKD and TKD with specific carb ups to replenish glycogen stores are more common, but there are people that do it with purely ketogenic diets, as well.
- papsosouid 14y ago
  >Are you seriously citing Lyle McDonald as proof that low carb diets lead to muscle wasting? I don't even know how to answer such a nonsensical question. Are you upset that a proponent of low carb diets actually knows what he is talking about and doesn't lie? >It's a surprisingly common topic of discussion for something that's supposedly not done. Your evidence of what bodybuilders did decades ago is that people have started talking about doing it in the last few years? Seriously?
  - commandar 14y ago
    >Are you upset that a proponent of low carb diets actually knows what he is talking about and doesn't lie? No, I'm saying that McDonald does not say what you're claiming he does. Low carb diets will not lead to muscle loss simply because they're low carb. McDonald even says as much in the article you linked. >I’d also note that, as long as protein intake is sufficiently high (e.g. the diet is covering the increased breakdown of protein in the liver and elsewhere), the amount of carbohydrates which are truly required is still zero. Low carb diets can lead to muscle wasting, but that's the case with any diet -- which is something else McDonald had said. The only thing I'm taking issue with is the assertion that low carbohydrate intake necessarily causes muscle wasting. >Your evidence of what bodybuilders did decades ago is that people have started talking about doing it in the last few years? Again, if you're going to cite McDonald, this is something he covers in the first chapter of his book. EDIT: I hadn't even seen the handy chart he includes at the bottom of that article. He recommends 50-100g of carbs per day to avoid muscle loss with no additional intake required to maintain light exercise. Those values are firmly within the low carbohydrate intake range. Seriously, it's rather uncouth to imply the person you're talking to is lying when you're completely misrepresenting the sources you've cited yourself.
    - papsosouid 14y ago
      You might want to go back and read the thread. Low carb diets used to lose weight and manage epilepsy are no where even remotely close to 50-100g of carbs a day. Many set limits as low as 10g a day.