Researchers studied mothers and their children from pregnancy to 6 1/2 years after their birth and found asthma and allergies were significantly less common in children whose mothers ate a lot of vegetables, fruits, nuts and fish during pregnancy.
The study in the journal Thorax also found eating high levels of red meat increased the risk. They say the Mediterranean diet was high in antioxidants which help to keep tissues including those in the lungs healthy.
Fatty acids from fish were known to help cut potentially damaging inflammation.
