How A Scientist Constructs A Diet

He listens to people following his advice, and adjusts accordingly.

Kudos to Dr. Jaminet.  His post at the link above is about yams and the problems people and animals could have while eating sweet potatoes:

"For our part, we may cease listing sweet potatoes among our 'safe starches' and specify yams instead, since a 'safe starch' should probably be low in fructose."