Involving 15 women aged 40 to 65, the study examined the impact of taking 250 mg of natto daily for six weeks on human skin.

The white coating on the natto is a layer of natto bacillus. 10:02 The recommended daily intake of natto is one pack, or about 50 grams, containing about 500 billion natto bacilli.

Traditionally, natto was prepared by placing boiled soy beans (especially yellow ones) in a mat of rice straw, which naturally contains the bacterium Bacillus subtilis, which ferments the sugars in ...