Tommy references Tim Ferriss's book as an example of pop-science affecting nutrition beliefs, causing his exercise-scientist brother to eye-roll.
Josh references this Tim Ferriss book in relation to Tommy's past resolutions about walking and reading.
Josh references this book as where he got into doing cheat days that spiralled into overeating.
Josh references Tim Ferriss's book describing a study where photographing food led to weight loss through increased mindfulness.
Tommy mentions lending this Tim Ferriss book to his old PT around 2011-2012 and never getting it back; discusses an early edition with dangerous breath-holding exercises.
Josh references Tim Ferriss's book as the source of his idea to get full health tests done before and after a diet.