味精:味精每人每天的摄入量以5～6克为宜,过多摄入会使血液中的谷氨酸升高,限制了必要的2价阳离子钙和镁的利用,可造成短时间的头痛、心跳过快和恶心等症状,对人体的生殖系统也有不良影响。 松花蛋又称皮蛋:有的在其制作过程中要用一定量的铅,经常食之,会引起铅中毒。 MSG: MSG intake of 5 to 6 grams per person per day is appropriate, excessive intake will make the blood glutamate, limiting the use of 2-valent cation calcium and magnesium can cause short-term Headache, rapid heartbeat and nausea and other symptoms of the human reproductive system also have an adverse effect. Songhuahua eggs, also known as preserved eggs: Some in the production process to use a certain amount of lead, often eat it, can cause lead poisoning.