What does the caveat mean? Should I avoid doing HITT first thing in the morning, after not having eaten? (note that I'm polyphasic at present, so unless I get some sort of fasting habit going, I may have eaten as recently as 4h prior)
The caveat mainly targets those on some low-carb dietary regimen. If you were to break a fast (can't give a specific fast length, sorry) with exercise then maybe have a banana 15-30 minutes or so before starting, depending upon your metabolic speed.
Does this apply to you? If a highly confident no, then have at it at your own liability!
This is the public group instrumental rationality diary for June 1-30; it's going up pretty late (sorry!) but entries for earlier in June are welcome.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!
Next diary -- July 1-15
Immediate past diary -- May 16-31
Rationality Diaries archive