Framing various issues in moral terms is quite the plague. It makes it impossible to have an interesting discussion about diet, fitness, mental health, etc. Any sort of experience is instantly thrown out, and people are afraid to bring up contradictory examples.

You would think that with all the reproducibility issues around various topics we'd know better than to assume we completely understand human metabolism. If we're wrong, how much damage is being done?

Btw, do you have citations for these?