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iron poisoning
Iron poisoning is an iron overload caused by a large excess of iron intake and usually refers to an acute overload rather than a gradual one. The term has been primarily associated with young children who consumed large quantities of iron supplement pills, which resemble sweets and are widely used, including by pregnant women—see overnutrition (approximately 3 grams is lethal for a 2 year old). Targeted packaging restrictions in the US for supplement containers with over 250 mg elemental iron have existed since 1978, and recommendations for unit packaging have reduced the several iron poisoning fatalities per year to almost zero since 1998.〔(【引用サイトリンク】publisher=American Association of Poison Control Centers )〕 No known cases of iron poisoning have been identified that are associated with iron mining.
==Nature of iron==
(詳細はiron (III) oxide, which is insoluble. Ferrous iron is soluble and its toxicity varies, largely with the integrity of the gastrointestinal lining. Iron supplements are typically used to treat anemia. Modalities include: diet, parasite control, vitamin A, riboflavin (B2), vitamin C (for absorption), folate(B9), vitamin B12 and multivitamin-multimineral supplements,〔(【引用サイトリンク】title=What Is Anemia? )〕 with or without iron; potentially avoiding the use of iron only supplements.〔(【引用サイトリンク】publisher=Iron Overload Diseases Association )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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