12. Fish liver oil
Fish liver oil is made from the oily liver of fish, most often cod. It’s rich in the omega-3 fatty acids EPA and DHA, which are essential for fetal brain and eye development.
Supplementing with fish oil may help protect against preterm delivery and may benefit fetal eye development.
Fish liver oil is also very high in vitamin D, of which many people don’t get enough. It may be highly beneficial for those who don’t regularly eat seafood or supplement with omega-3 or vitamin D.