Believe it or not, beer has been used through the centuries to bring in more mother's milk. It's the hops in particular that work so well. You might want to consider having a good organic microbrewed beer a day [or every other day] for a short period of time and see if that helps.
Also, chewing aniseed really helps. You can buy them in Indian grocery stores, candy-coated aniseeds, or you can just chew the plain ones.
Both of these worked for me during periods when I was trying to bring in more milk. |