Your question: I have a Mother with extremely poor digestion. Would I give her the buttermilk and the bsm combined and how much per day?
Answer: Give your mother a choice and let her drink what ever amount of Buttermilk she wants and add some BSM and also some Raw unfiltered Top Quality Honey !
She may need to start slow and work up to higher amounts as she may see the need and may see Better Results !
It is Better to use small amounts more often thru-out the day!