Development and piloting of a food-based intervention to increase vitamin E intake in pregnant women in a randomized controlled trial.

Low maternal vitamin E intake during pregnancy is associated with childhood asthma and a trial is required to test whether increasing maternal vitamin E intake reduces childhood asthma. This study investigated whether such a trial is possible using food to increase vitamin E intake. Three soup varieties with enhanced vitamin E content (16-19 mg/can) from food ingredients were developed.