HEALTH

NEW YORK —You don’t have to look any further than the Align box on the shelf—or the empty space where it used to be—to realize just how popular probiotics have become. Align is selling fast.

For the 52 weeks ended Feb. 24, sales of Procter & Gamble’s lead probiotic supplement were up 433% to $28.7 million across food, drug and mass (minus Walmart), according to Information Resources Inc.