"What does light do specifically to milk? In a matter of minutes it destroys Vitamins A, C, & equivalent, accelerates oxidation of fatty matter, & causes the distinctly unpleasant sensations known as "oxide taste" or "fishy taste" or "metallic flavour."

From the Petit Echo Dietetique No. 46, June 1960, quoted in note 64, corner of Half-Litre of Milk, in An Anecdoted Topography of Chance, Daniel Spoerri (Atlas Press)