90+ Years of Gut Health Pioneering
Yakult is not just a drink — it is the life work of one scientist who believed that gut health was the foundation of human wellness. His name was Minoru Shirota, and his legacy lives in every bottle.
Dr. Minoru Shirota, a microbiologist at Kyoto Imperial University, succeeds in cultivating a strain of Lactobacillus that can survive stomach acid and reach the intestines alive. At a time when Japan suffered from poor nutrition and widespread digestive diseases, this discovery was revolutionary. Dr. Shirota believed that healthy intestines were the foundation of a healthy body.
Dr. Shirota commercializes his discovery, launching Yakult as a daily probiotic drink accessible to ordinary people. The name "Yakult" comes from "Jahurto," derived from the Esperanto word "jahurto" meaning yogurt. The mission was simple: make probiotic health available to everyone, not just those who could afford supplements.
Yakult becomes a fixture of Japanese daily life. The iconic small red-and-white bottle is found in refrigerators across the country. The Yakult Lady home delivery system — a network of independent distributors who bring Yakult door-to-door — becomes one of Japan's most recognized services. Generations of Japanese children grow up drinking Yakult daily.
Now sold in over 40 countries, Yakult has become the world's most recognized probiotic drink. Yakult USA operates its own manufacturing facility in California. Over 90 years later, the same L. casei Shirota strain remains at the heart of every bottle. Dr. Shirota's vision — that gut health is the foundation of wellness — has been validated by modern science. The tiny red bottle that started in a Kyoto university lab is now a global daily ritual for millions.