That's pretty crazy. I wonder if placebo effects played a role?
(Ie if you had pumped the liquid directly into her stomach, without telling her whether it's black coffee or some substitute, would the outcome still have been the same?)
The easy test would be to see if it's the caffeine having this affect by using switching between caf and decaf.
Something I wonder about though is that if blood glucose is rising after black coffee, that energy must becoming from somewhere. i.e. stored fat, stored glycogen or stored protein.
Given that she's about do some fasted exercise that will burn that blood glucose as its fuel source, is this a bad thing if the energy is coming from stored fat?
> Give that she's about do some fasted exercise that will burn that blood glucose as it's fuel source, is this a bad thing if the energy is coming from stored fat?
For a healthy person, this might be good. For someone with various health issues (like the person in question), I don't know.
(Ie if you had pumped the liquid directly into her stomach, without telling her whether it's black coffee or some substitute, would the outcome still have been the same?)