Bob Beale | Jul 21, 2002 | 8 min read
Image: Courtesy of Mark Neysmith, © Gregor Reid GUT REACTION: Researchers have found that Lactobacillus GR-1 and RC-14 can penetrate Escherichia coli biofilms, multiply, and survive. The human body plays host to a complex and thriving microbial ecosystem of vast numbers of tiny creatures. Some of these species, already well studied, can cause disease. But a renewed appreciation is growing for many lesser-known species called probiotics that help maintain health and may have the pote