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.
The company launched domestic yakult in 1971 and encountered an unfavorable response initially due to a lack of knowledge regarding lactic acid bacteria. This led to speculation about the product because many people believed that Lactic Acid had adverse effects on the body.