菠菜菠菜中含有大量草酸，草酸在人体内遇上钙和锌便生成草酸钙和草酸锌，不易被吸收而排出体外。儿童生长发育需要大量的钙和锌，如果体内缺乏钙和锌，不仅可导致骨骼、牙齿发育不良，而且还会影响智力发育。猪肝猪肝含有大量的胆固醇，儿童常吃或多吃猪肝，会使体内胆固醇含 Spinach spinach contains a lot of oxalic acid, oxalic acid in the human body will encounter calcium and zinc will generate calcium oxalate and zinc oxalate, not easily absorbed and excreted. Children need a lot of growth and development of calcium and zinc, if the body's lack of calcium and zinc, can not only lead to bone, tooth dysplasia, but also affect mental development. Pig liver Liver contains a lot of cholesterol, children eat or eat pig liver, will make the body cholesterol