I am glad that you have joined this very complicated challenge proposed by Galen, it is a sign of good health.
I didn't know Feuerbach's nutritional side , you learn something every day, I think Hippocrates said something similar, perhaps with less social background. I totally agree that good nutrition improves people; in another sense a fairer world would be a world with well fed, happier and better people.
I feel that way now, well fed, freshly dined, and in good company.
Best regards @nanixxx