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Content. The aciduric type of bacteria finds its most favorable environment when lactose is present, as such, "i the intestine. Lactic acid is not a factor. The beneficent action of milk cultures also is dependent on the lactose and not on the bacteria, for organisms of the type of B. acidophilus increase in the intestine father than the bacteria taken with the milk. According to these writers, then, the control of the intestinal bacterial flora lies with the fooda combination of milk .anddoi:10.1001/jama.1917.04270030251019 fatcat:lupmod6cjrh6tjlquniekynyrm