[Scott Johnston]

Santiago:

Thanks for your question.  I would disagree that the results of fat adaptation are mere placebo. There have been exhaustive studies showing conclusively the rate at which fat can be metabolized in a well fat adapted athlete being over 3x that of non fat adapted athlete.  I detail all of this on both my books; Training for the New Aplinism and Training for the Uphill Athlete.  I too have found Science of Ultra a good resource. You might wat to listen to this podcast that address the fat adaptation subject head on. https://www.scienceofultra.com/podcasts/119

Scott