Vitamin A May Not Prevent Asthma: Johns Hopkins University Study

Despite the important role of vitamin A in lung development, researchers have found that giving the nutrient to pregnant women or preschoolers in Nepal doesn't protect kids against asthma. But the findings don't mean vitamin A isn't important, especially in regions where vitamin deficiencies are common, according to the scientists. Women taking vitamin supplements had a lower chance of dying during pregnancy, for instance. And those who took vitamin A while pregnant had kids with larger lungs, which have been linked to better survival.