Natto Day
July 10, Thursday

Why July 10th?
The date was chosen because of a play on words in Japanese. The numbers 7 (for July) and 10 can be read as "na" (7 = "nana") and "to" (10 = "tō"), which together sound like "natto." This type of wordplay, known as goroawase, is common in Japanese culture and is often used to create memorable dates for holidays and events.
How is Natto Day Celebrated?
Natto Day is not a public holiday, but it is recognized and celebrated in various ways, especially by natto producers and enthusiasts. Common activities include:
- Hosting natto-themed events and festivals
- Offering discounts on natto products in supermarkets
- Sharing natto recipes and cooking tips
- Promoting the health benefits of natto through media and social networks
Health Benefits of Natto
Natto is considered a superfood in Japan due to its nutritional value. It is:
- Rich in protein and dietary fiber
- A good source of vitamins, especially vitamin K2
- Known to contain nattokinase, an enzyme believed to support cardiovascular health
- Beneficial for digestion due to its probiotic content
Fun Facts About Natto
- Natto has been eaten in Japan for over 1,000 years.
- It is especially popular in eastern Japan, including the Kanto region.
- There are even natto specialty restaurants and natto-themed merchandise.
- Some people love it, while others find its smell and texture challenging.
Natto Day is a fun and quirky celebration that highlights a unique part of Japanese culinary culture. Whether you're a fan of natto or just curious, it's a great opportunity to learn more about this traditional food!