Not to be misunderstood, that Nietzsche quote was a sarcastic comment on some strange lines of thought one can find in the anti-vaccination fringes.
Another one is 'God wills it' and another one is, it's 'natural' or 'pure'.
As an extreme, you can find that strange mix of sentimental almost pseudo-religious nature enthusiasm, magical thinking and barbarism in National Socialism.
They were obsessed with the healthy Aryan body, albeit its rulers themselves for the most part not exactly the most outstanding specimens.
Metaphors of health, disease, and parasitism in the racial corpus permeate the whole ideology like metastasized cancer.
Of course, the Reich just needed healthy soldiers, ruthlessly against the weak amongst themselves and the enemy.
As an extreme, you can find that strange mix of sentimental almost pseudo-religious nature enthusiasm, magical thinking and barbarism in National Socialism. They were obsessed with the healthy Aryan body, albeit its rulers themselves for the most part not exactly the most outstanding specimens. Metaphors of health, disease, and parasitism in the racial corpus permeate the whole ideology like metastasized cancer.
Of course, the Reich just needed healthy soldiers, ruthlessly against the weak amongst themselves and the enemy.
https://en.wikipedia.org/wiki/Adolf_Hitler_and_vegetarianism
https://www.tandfonline.com/doi/abs/10.1080/0740971090314974...
https://www.cairn-int.info/article-E_VIN_113_0029--the-nazis...
https://www.irishtimes.com/culture/books/standing-up-for-the...
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Now on to my 50 squats per hour.
Mens sana in corpore sano