Effects of a fermented milk drink containing lactobacillus casei strain shirota on the immune system in healthy human subjects

Abstract

Nine healthy volunteers drank fermented milk containing 4×1010 live cells of Lactobacillus casei strain Shirota daily for 3 weeks, and their NK activity and other immunological functions were measured. NK activity significantly increased (p<0.01) 3 weeks after the start of intake and remained elevated for the next 3 weeks. The effect was particularly prominent in low-NK-individuals. © 2000, Taylor & Francis Group, LLC. All rights reserved.