The first meal a birth mother is given in Korea is a bowl of seaweed soup.  Usually her mother brings it to her in the hospital.  But no one tells you that from that point onward until you stop breastfeeding, a nursing mother has to have seaweed soup at every meal.  Why?  There are a number of reasons: it helps blood production, it clears the complexion, it improves milk flow ~ and I believe it stimulates the bowels.  I’ve eaten so much seaweed that my poop (now twice a day) is the same color.  The seaweed used for nursing mothers is different from that eaten by regular folks, it should be collected from the sea rather than cultivated via aquaculture, making it cost is 2-3xs more.