Word-of-mouth hit: Yakult XO zero fermented drink tops 40 million units sold

Hy announced Thursday that Yakult XO, a zero-sugar fermented milk drink it launched last May, has surpassed cumulative sales of 40 million units.

Yakult XO is the first zero-sugar fermented milk product hy has released under the Yakult brand. It contains no sugar, sweeteners or fat, and carries 10 kilocalories per 100 milliliters. The drink features five patented bacterial strains and guarantees 50 billion CFU of probiotics.

Hy has broadened its consumer reach through collaborations with outside brands. A drink called "Low-Sugar Honey Pear XO Yakult," developed by Mega MGC Coffee using the product and released in April, gained traction on SNS as a popular hangover remedy.

"We will continue to expand our lineup of products that balance great taste with health benefits," said Choi Young-taek, head of hy's marketing team.