Abstract
Oral intake of vitamin A in aqueous dispersions produces a significantly higher rise of the blood vitamin A level than in oily menstruum. This was considered evidence of improved in test inal absorption, especially since after intake of the aqueous preparation, the fecal excretion of vitamin A appeared reduced and the storage in the liver increased. The use of aqueous preparations appeared especially superior in improving the response to vitamin A in patients with liver or celiac disease. This suggested the direct observations of the intestinal absorption of vitamin A in aqueous and oily solution in rats by fluorescence microcopy.
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