Liver contains lots of nutrients, many of which support fertility and a subsequent healthy pregnancy. For example, it’s loaded with vitamin B12, folate, pantothenic acid, niacin, vitamin A, and riboflavin. All of these nutrients work together to optimize fertility, pregnancy, and fetal development. Women with PCOS should be especially diligent about adding liver to their diet if they’re trying to conceive, since they tend to suffer from folate and vitamin B deficiencies in general.