The first failed (Japanese) 'isolation' attempt (1924). Note: no definite chemical formula was discovered and a dying rat was the only forced witness.
Source:
1/5 science.org/doi/10.1126/sc…
The 2nd failed 'isolation' attempt (1937) where the chemical formula was given (by Karrer) even before the isolation experiment. Since Vitamin A was unknown, how could one be sure 60 rats were "depleted of Vitamin A"? #ReificationFallacy
Here are my findings based on the original sources regarding the "link between Japanese and Old German" video:
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The general EN-CN-DE-AHD-JP chart:
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Nov 19, 2023 • 6 tweets • 2 min read
A thread on "Vitamin D":
The fabrication of "Vitamin D" is the same old "no purification from a living human" story (i.e. the viral sorcery).
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Early 1900 'Scientists' (Mellanby/Mccollum):
-'Cured' rickets by feeding dog dog food instead of oatmeal
-'Decided' oxygen bubble "purified" "Vitamn D" from cod oil
-'Concluded" sunlight/UV irradiation of animals or their diets curing rickets was thank to "Vitamn D" ONLY