“TWO (2) CAPSULES TWICE DAILY” = 4 caps per day.
60 caps/ 4 = 15 days...
Oh, that is too much, you are right.
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natokinase 2000mg 2xs/day
bromelin 500mg 1x/day
curcumin 500mg 2xs/day
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You can make nattokinase at home with a starter or with previous nattokinese. You do need some original batch every 4th time.
I am sure there are other pages explaining how, but this one covers everything, unfortunately in metric: https://www.okonomikitchen.com/how-to-make-natto/