Probiotics for gut health: Sorting facts from hype

Last year, as many as four million Americans consumed about $3 billion worth of probiotic supplements — living bacteria — in 2024, according to the International Probiotics Association, accounting for a third of global sales and spurring an industry that has grown almost 6% per year since 2019. The supplements cost from as little as $20 to more than $60 for a one-month supply. The packages ...