Would you tell a slave to just focus on responsibility? Why would you tell someone working for a wage something similar? It doesn’t seem hedonistic to me to want to enjoy the fruits of your own labour, or see your community made better by the work you did. Instead a lot of the value of your labour is siphoned off by people you will never meet and only have negative feelings for.
I would argue it is a feature and not a bug. Your body controls the uptake of iron with hormones. Those hormones work less effectively on the uptake of heme, but I would say that is the bug. Hemochromatosis (abundance of iron) can present the same symptoms as iron deficiency. Both issues are usually caused by genetic issues rather than dietary ones though.
How in the hell ( slrpnk.net )
Humans are notoriously bad at absorbing iron from plant sources, while herbivores seem to do fine. What's up with that?
… or do they just make up for it with sheer unrelieved quantity of greenery, perhaps?