The company created and started selling domestic yakult  in 1971 to negative reception in the early days, due to the lack of knowledge regarding lactic acid bacteria. At the time, there was speculation about the product, due to popular belief that Lactic Acid was harmful to the body.
In 1971, the company introduced domestic yakult and faced a negative reaction from consumers who were unfamiliar with lactic acid bacteria. As a result, there was speculation about the product's safety due to widespread misconceptions about the potential harm caused by Lactic Acid.