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Those low carb diets are also diets that reduce your ability to engage in strenuous activities, and cause muscle wasting. The idea is to be healthy, not to los

Those low carb diets are also diets that reduce your ability to engage in strenuous activities, and cause muscle wasting. The idea is to be healthy, not to lose weight or treat epilepsy.

Evgeny 14y ago
and cause muscle wasting Low carb diets do not cause muscle wasting - at least if one continues to exercise. I.e: Very-low-carbohydrate diets and preservation of muscle mass http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1373635/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1373635/
- papsosouid 14y ago
  >Low carb diets do not cause muscle wasting - at least if one continues to exercise. Which you can't do because your muscles have no glycogen stores.
  - Evgeny 14y ago
    My understanding is that when carbohydrates are in short supply, then gluconeogenesis kicks in and liver starts producing glucose from lactate, glycerol and amino acids. I.e. some information can be found here: Low-Carbohydrate Diet Burns More Excess Liver Fat Than Low-Calorie Diet, Clinical Study Finds http://www.sciencedaily.com/releases/2009/01/090120074631.htm http://www.sciencedaily.com/releases/2009/01/090120074631.ht... I personally did not follow a low carb diet for more than 12 weeks, but I kept my regular 3 times per week workouts and maintained my strength while losing about 8kg bodyweight from ~83 to ~75 kg. My workouts were fairly short (40 to 50 min), but quite intensive.
commandar 14y ago
>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?
      - 14y ago

Those low carb diets are also diets that reduce your ability to engage in strenuous activities, and cause muscle wasting. The idea is to be healthy, not to lose weight or treat epilepsy.

Evgeny 14y ago

and cause muscle wasting Low carb diets do not cause muscle wasting - at least if one continues to exercise. I.e: Very-low-carbohydrate diets and preservation of muscle mass http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1373635/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1373635/

papsosouid 14y ago
>Low carb diets do not cause muscle wasting - at least if one continues to exercise. Which you can't do because your muscles have no glycogen stores.
- Evgeny 14y ago
  My understanding is that when carbohydrates are in short supply, then gluconeogenesis kicks in and liver starts producing glucose from lactate, glycerol and amino acids. I.e. some information can be found here: Low-Carbohydrate Diet Burns More Excess Liver Fat Than Low-Calorie Diet, Clinical Study Finds http://www.sciencedaily.com/releases/2009/01/090120074631.htm http://www.sciencedaily.com/releases/2009/01/090120074631.ht... I personally did not follow a low carb diet for more than 12 weeks, but I kept my regular 3 times per week workouts and maintained my strength while losing about 8kg bodyweight from ~83 to ~75 kg. My workouts were fairly short (40 to 50 min), but quite intensive.

commandar 14y ago

>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?
    - 14y ago