Yakult 1000: Benefits of the Y1000 Probiotic Drink

Yakult and Calpis (also known as Calpico) are probiotic drinks that are best recognized in Japan, loved by people for a long time, and available in almost every grocery store.

Although they both started to sell beverages that relieve stress and improve sleep quality in 2019, the one from Yakult, named Yakult 1000 (Y1000), recently gained sudden popularity, highly praised in a TV program.

Yakult 1000

Yakult 1000 (Y1000)

Because of that, the Yakult 1000 probiotic drink (110 ml, Price: 150 yen) has been all the rage since April this year, causing supply shortages and making it difficult to obtain.

I was also curious about it and wanted to try it once, for a friend said the beverage worked well, and a few days ago, I somehow got it at a supermarket.


Yakult 1000 Probiotic Drink

The name Yakult 1000 comes from the fact that the beverage contains 100 billion Lactobacillus casei strain shirota (Lactobacillus casei YIT 9029) per 100 ml bottle,

which makes it the densest ever in the history of Yakult. (ex. Regular Yakult (Price: 40 yen): 20 billion per 65 ml, Yakult 400 (Price: 80 yen): 40 billion per 80 ml).

The probiotic drink improves the intestinal environment, and as previously mentioned, it helps reduce stress and enhance sleep quality.

To me too

Yakult Y1000 Probiotic Drink

It worked well with the same delicious taste as regular Yakult!

Although I have been doing mindfulness meditation for years (which already makes me stress-free and like Doraemon’s Nobita-Kun, who falls asleep in an instant),

after my first try yesterday night, the Yakult 1000 probiotic drink really further deepened my sleep! I felt a good response, but I still have to keep trying!

Ingredients/Nutrition Facts

Yakult 1000 Ingredients Nutrition Facts Calories

Sugar, Skim Milk Powder, High Fructose Corn Syrup, High Fructose Syrup, Soybean Polysaccharide, Flavoring

Nutritional Values

Nutritional Values per Bottle (110 ml)
Calories 70 kcal
Protein 1.7 g
Fat 0.1 g
Carbohydrates 15.6 g
Salt equivalents 0-0.1 g
Lactobacillus casei YIT 9029 110 billion


Hi, I'm Tomo, a Japanese blogger living in Niigata Prefecture, Japan. For the purpose of enriching your life, I would like to introduce things about Japan on this blog, especially unique Japanese products, cooking recipes, cultures, and facts and trivia.

2 Responses

  1. chromatic says:

    Wonderful! I have been drinking Yakult for years, and feel the digestive benefits. I hope to try this one some day. Thank you very much.

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