Answer: folic acid; neural tube defects
Step-by-step explanation:
Refined grain products are often fortified with folic acid to decrease rates of neural tube defects.
Refined grains products are the products that have been milled. This means that the bran and the germ has been removed to give the grains a finer texture and also to improve the shelf life of the grain. Examples of refined grain products are white rice, de-germed cornmeal, white flour, and white bread.