快餐食品中缺少足够的铁元素，影响儿童大脑发育。快餐食品中含有大量的脂肪

快餐食品中缺少足够的铁元素，影响儿童大脑发育。快餐食品中含有大量的脂肪和糖分，影响儿童智力发育，让他们注意力不够集中。

結果 (英文) 1:

Fast foods lack sufficient iron, affect children's brain development. Fast foods contain a lot of fat and sugar, affecting the development of children's intelligence, let their attention drift.

結果 (英文) 2:

Snack foods lack sufficient iron, affect children's brain development. Snack foods contain a lot of fat and sugar, affecting children's mental development, so that they focus enough attention.

結果 (英文) 3:

The lack of enough iron fast food, affect the brain development of children. Fast food contains too much fat and sugar, affect the intellectual development of children, so that their attention.