Wonderful reading Food cleanses the lungs? In traditional medicine, \”clearing the lungs\” generally refers to relieving symptoms related to the respiratory tract, such as cough, excessive phlegm, etc. Some medications and foods can help relieve these symptoms and are therefore known as \”lung-clearing foods.\” But it is nonsense to say that this kind of \”lung-cleansing\” food can clean \”air-polluted lungs.\” Cramps and calcium deficiency? Although calcium deficiency does cause cramps, this condition mostly occurs in middle-aged and elderly people with osteoporosis and pregnant women.