Do you prefer kefir over sauerkraut/fermented veggies for jumpstarting the flora. Or Do both have about the same amount of benefits for our flora?
All the cultured foods have the benefits. I simply prefer the taste of kefirs myself.
For the long term I really prefer prebiotics over probiotic sources. There are thousands of beneficial strains of flora and even cultured foods only provide a tiny fraction of these. Prebiotics feed all the strains restoring their numbers.
I need to clarify something here so my last statement makes more sense. Antibiotic therapy does not kill all the flora. There will always be some survivors from the different strains. It is these survivors that will be fed and will regrow in large numbers if properly fed.