Posted 7/16/2014 11:10 PM (GMT 0)
my standard was 30 billion cfu/daily with at least 5 different strains and one being s. boulardii (prevents c. diff). Occasionally I went up to 50 billion. That seemed to work for me. Yougurt/kefir ALWAYS helped too.
It varies pretty widely between individuals. I would say 20 bil/cfu sounds okay. If your gut/digestions isn't bothering you, you can always adjust.
When I was done with antibiotics I went on 100 billion cfu intensive care for 2 weeks under my practitioner.