Soy sauce does not contain the level of isoflavones associated with other soy products such astofu or edamame. It can also be very salty, having a salt content of between 14–18%. Low-sodium soy sauces are made,
The broth can be made from different bases such as soy sauce (shoyu), soybean (miso), pork bone (tonkotsu), or salt (shio), as per Japan-Guide. In traditional establishments, the broth continues to be regenerated and is never allowed to be entirely used up. In fact, The Guardian indic...