Kurozu

I am interested in Kurozu and the health benefits. Do you Japanese people drink it ? What are the benefits ?

It is said to be effective in relieving fatigue and diet.
In big supermarkets, they are sold are several Kurozu drink.
I have ordered what dilute with water in mail order.
Not very sour, it was easy to drink.

Not only used in drinks, but it is used for cooking for flavour and making meat tender.

of course. not.
that is the company's advertise.
it is called 健康食品, health food.
most of 健康食品 are meaning-less scientifically. just they are not harmful.
since the takers believe that food make them healthy, they feels better.
it is just the same effect like religions. Those who believe shall be saved.