推荐回答（3个）
吃猪肝可以补充铁 对贫血的人有好处 但是不能多吃 而且 猪肝的质量很重要 病肝一定要避免。
婴幼儿每天食猪肝的量，4~5克左右，一周20克左右；成人每天食猪肝量为10克左右，一周50克左右。可以每天吃，也可以每周吃3次左右。
猪肝含有多种营养物质，它富含维生素A和微量元素铁、锌、铜，而且鲜嫩可口，但猪肝食前要去毒。
猪肝是猪体内最大的毒物中转站解毒器官，各种有毒的代谢产物和混入食料中的某些有毒物质如农药等，都会聚集在肝脏中，并被它解毒、排泄，或经它化学加工后运送至肾脏，从小便中排出。肝脏还会产生炎症，甚至肝癌。此外，还可能有肝寄生虫等疾病。
倘若肝脏的各类毒性物质未能排净，或解毒功能下降，那么有毒物质就会残留在肝脏的血液中，它可能诱发癌症、白血病与其它疾病。
由于猪肝中有毒的血液是分散存留在数以万计的肝血窦中，因此，买回猪肝后要在自来水龙头下冲洗一下，然后置于盆内浸泡1~2小时消除残血。注意水要完全浸没猪肝。若猪肝急烹饪，则可视其大小切成4~6块，置盆中轻轻抓洗一下，然后盛入网篮中在自来水下冲洗干净即可。
另外，炒猪肝不要一味求嫩，否则，既不能有效去毒，又不能杀死病菌、寄生虫卵。
吃猪肝既有好处也有坏处
肝脏是动物机体中最大的解毒器官
猪从出后到屠宰中间用了不少的药物来治疗一些疾病，还有疫苗的注射。大量的药物残留都集中在肝脏上，体质差的人吃了以后容易出现食物中毒或者过敏现象。
但肝脏中含有丰富的“锌”元素，能促进骨格的生长发育。不过这种元素可用花生米来代替
所以说最好是不要吃肝，包括所有动物的肝脏
功效 ： 猪肝营养丰富，其中铁的含量为猪肉的18倍多，蛋白质含量也远高于瘦肉，因此是
滋补气血的佳品，可防治视力模糊两目干涩，夜盲及目赤等眼疾。幼儿常吃猪肝，
可使眼睛明亮精神充沛
猪肝的营养含量是猪肉的10多倍，动物肝中维生素A的含量超过奶、蛋、肉、鱼等食品能保护眼睛，维持正常视力，防止眼睛干涩、疲劳。
除此之外，补充维生素B2，维持健康的肤色，维持正常生长和生殖功能，增强人体的免疫反应，抗氧化、防衰老。
猪肝含丰富的蛋白质及动物性铁质，是营养性贫血儿童较佳的营养食品。它还含有大量的维生素A，有助于幼儿的骨骼发育.
猪肝富含维生素A、C，每百克含维生素A10000单位，含维生素C20毫克。此外，还含蛋白质、脂肪、硫胺、核黄素及钙、磷、铁等矿物质。这些营养成分不仅对养生健体有益，更重要的是它具有补血补铁、补肝明目的作用。
会有一些病毒，烹饪前用淡盐水浸泡一段时间在拿出来吃。
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