And so that fetus must be able to get enough nutrients so that they can basically develop the different types of organs and systems and tissues and so forth. And when a pregnant woman does not consume enough nutrients that has a negative effect on that embryological and fetal development process. For example, if she doesn't get enough amino acids and proteins, that can lead to different types of mental abnormalities and learning disabilities. Another example is insufficiency of vitamins. So vitamins are very important to that fetus and that fetus has to get enough of these vitamins because these vitamins basically help those enzymes in that developing fetus basically function properly and effectively. And so insufficiency of vitamins can also lead to problems with the central nervous system as well as other problems.