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How long does it take to "fat adapt"? Apparently, always one week longer than the study proving it sabotages endurance fitness.
O dėl daugiau energijos su mažiau deguonies tai kažką susivėlei -
One of the main criticisms of the LCHF approach is that, while fat stores are more abundant, carbohydrate provides more energy for a given amount of oxygen. That’s a finding that goes back to classic studies from a century ago that found a 5.5- to 8-percent edge for the energy yield of carbohydrate.
No one had tested this critique in a rigorous way, but the new study finds that this is exactly what happens.
Here’s data showing the amount of oxygen needed to sustain 50K race pace for these walkers (white bars are before, black bars are after):
IMAGE COURTESY OF JOURNAL OF PHYSIOLOGY
Again, there’s no change for the two high-carb groups. But for the high-fat group, the amount of oxygen needed to sustain this pace gets significantly higher. That’s bad news.
P.S. truputį paskaitinėjau forumus - pora geriausių minčių -
How long does it take to make fat optimal substrate? Answer: Generations.
My prediction was right: we should identify the grand grandparents of future marathon runners and put them on LCHF
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