I don't
know about colostrum kefir — normally babies get colostrum only for a few days, so it might be too rich.
One of our favorite resources regarding breastfeeding is La Leche League International's The Womanly Art of Breastfeeding, which has this to
say about colostrum on pages 6 - 7:
One night at a party, a woman I barely knew told me
all about colostrum, racial disparities in breast - feeding rates and how I absolutely had to have a hands - free pump.
Its about colostrum, liquid produced in the first few hours after birth.
Before talking about problems, let's learn
all about colostrum and milk production in lactating female dogs.