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Originally Posted by PR_Glen
I think we can all agree that ketosis is highly effective for weight loss--whether you can handle the side effects or not.
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the "side effects" are only for those few that feel it in the first 2 weeks of your brain adapting to a new fuel source
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The one other thing that concerns me with it, other than the food/hunger, is performance. Can you still have optimal performance for athletics? Can you do endurance races?
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Sure, eat more calories. Your energy levels will be consistent. I have better stamina running long distance in ketosis (5miles anyway) than not. Your energy source is constant (dietary protein/fats and fat stores) and not dependent on blood sugar, stored glycogen levels.
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I imagine you would have to modify these things before events I'm just curious on how effective it is with athletes. Despite my recent years of slacking I still remain very athletic so that is always a concern of mine as well.
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I don't know how it could be "modified" in that sense. Either you are in Ketosis or you aren't. There is no middle ground. "ketosis refers to the ratio of glucagon vs insulin in the blood. so you can have "some carbs", but once you cause any sort of insulin response it will drive glucagon levels to nothing - shifting you back to normal glucose metabolism. That's what I meant with HCG and that kind of stuff where people are on the edge and consequences of shifting back and forth. It 100% or 0%.
I think people really underestimate how common this is now in Gyms and in bodybuilding. It was common in the 50's and people often poo pooed it and didnt even understand how/why it worked. Its a really huge thing for bodybuilders today,... meaning its gained substantial momentum in the last 10 years. You just can't gain muscle while in Ketosis. It's just a good way (in combination with restricted calories and drugs) to cut without losing hard earned muscle and being constantly depleted, grumpy/irritable and tired.
I think that if anyone is asked to choose between glucose metabolism and ketone metabolism for long distance athletics, they are going to choose what everyone does. Personally, i feel much better running 5 miles when in Ketosis than not. Energy levels are very flat and consistent, i can easily zone out and get it done. When not in ketosis, it becomes a mental game for me, energy levels/emotions/feelings/sensations are all over the place and its a struggle.