Does Cauliflower add any benefits to pregnancy diet? There are quite a few benefits that Cauliflowers add to a pregnancy diet. Cauliflower is a good source of folate, vitamin C and calcium, all of which are known to aid fetal development. It also boosts the immunity of pregnant mothers, thanks to the antioxidants it contains. Cauliflower is rich in minerals like phosphorus, selenium, and zinc that help maintain a healthy child in the mother’s womb. All you need to care about is that your cabbage is thoroughly washed and cooked, to get rid of any worm eggs and bacteria present.