Morinaga Milk arsenic poisoning incident

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The Morinaga Milk arsenic poisoning incident occurred in 1955 in Japan and is believed to have resulted in the deaths of over 100 infants.^[1] The incident occurred when arsenic was inadvertently added to dried milk via the use of an industrial grade monosodium phosphate additive.^[2] This incident also led to negative health effects for thousands of other infants and individuals, which has had lingering health effects.^[2][3]