Since ancient times, Japanese people have been consuming live yeast by eating fermented food to improve their gut microbiome. However, opportunities to ingest live yeast are decreasing with the diversification of food culture. With this in mind, cobon marvel N 525 was developed to promote the intake of natural yeast as a substitute for traditional fermented foods. Because it is a drink, instead of a food, it makes it easier to consume natural yeast. The natural yeast used in the drink cobon has been collected from Mount Amagi in Izu, Shizuoka Prefecture, and was cultured in the early Showa period. Since then, this high quality natural yeast has been used for over 60 years. The additive-free drink is also great for children. Its honey-like, sweet and fruity taste also makes it easier to drink on a daily basis. It is a revolutionary healthy food product that supports the wellness of modern people.