Udo’s Choice Microbiotic Strains gastric resistance has been tested in vitro by reproducing the natural conditions found in the human’s stomach. All Udo’s Choice strains are able to survive 3 hours in a gastric solution at pH 3.0-4.0 at a temperature of 37C (the human body temperature) without suffering any loss in bacterial concentration. Knowing that on a full stomach, acidic pH reaches 5.0-6.0 levels, microbiotic supplements should therefore be taken after meals in order to facilitate the safe passage of bacteria from the stomach to the gut.

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