[Photo by Wang Huabin/Asianewsphoto]

5 Leaf vegetables

It is said that eating leaf vegetables will help to fight against smog. This rumor is actually quite "reasonable". Leaf vegetables contain chlorophyll and carotene. Chlorophyll decreases the mutagenesis of chemical toxins in the human body, and carotene enhances resistance and repair capacity of epithelium in the respiratory tract.