From Science News Online - more on probiotics (one of the more complete summaries I've seen)

[Guest guest]

Science News Online

Week of March 1, 2008; Vol. 173, No. 9

Nurturing Our Microbes

Stewardship of the life teeming within us can pay health dividends

Janet Raloff

Each of us is a metropolis. Bustling about in everyone's body are

tens of trillions of microbes. Some are descended from starter

populations provided by mom during birth. Additional bacteria,

yeasts, and other life forms hitchhike in with foods. By age 3,

everyone's gut hosts a fairly stable, yet diverse, ecosystem...

Full article freely available at

http://www.sciencenews.org/articles/20080301/bob10.asp

Arne

56 - UC 1977, PSC 2000

Alive and well in Minnesota