Researchers have found another reason for newly expectant mothers to eat their veggies--their toddlers have a 40 percent less chance of suffering from childhood asthma after turning 2.

A research team including researchers from the National Center for Child Health and Development made the announcement on April 6.

Among mothers-to-be who visited the center between May 2010 and November 2013, the team analyzed 310 groups of pregnant women and their children.

The researchers compared a group in which pregnant women ate the least amount of vegetables, 78 grams per day, in their first 16 weeks of pregnancy with one that consumed the largest amount of 286 grams per day.

Two-year-olds whose mothers consumed the larger amount of vegetables had about a 40 percent less chance of exhibiting asthma symptoms, such as noisy breathing and wheezing sounds, than the same 2-year-old child whose mother partook of the least amount of veggies.

The benefit was strong when newly expectant mothers dined on vegetables with a particular abundance of folic acid such as spinach, "shungiku" and asparagus, as well as cruciferous vegetables including broccoli, cabbage and napa cabbage.