Fast Company: INSIDE THE PROBIOTICS MOVEMENT... FOR PETS

GUT BACTERIA PRODUCTS IS A BIG PART THE $750 MILLION PET SUPPLEMENT INDUSTRY.

BY KATHERINE HARMON COURAGE

Your little furry darling's contributions to the yard or litter box might seem like one of the downers of pet ownership. But as in our own guts, microbes can influence intestinal tract health as well as the immune system.

Just as we're learning to cultivate our healthy human microbiota, our pets' tracts are starting to dawn on us, too—and attract a heap of consumer dollars.

We already spend more than $750 million on supplements for our pets—a number that is projected to approach $1 billion by 2017, almost doubling from 2008 sales, according to market research firm Packaged Facts.

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