My wife is from Japan so I’m very familiar with Natto.
Interestingly she didn’t care for it until she got pregnant with our first - then the cravings started.
She and both my daughters love it.
I still can’t stand it and I’ll eat most anything. Very strong smell, very strong nutty flavor, but worst is the sticky strands that are part of its makeup. For me the sticky is the worst as it will get in my beard and then I have that smell for days despite repeated scrubbings and washings....I’m sure it’s psychosomatic...but just ugh.
She’s offered to get me non-smelly natto as she knows it has health properties and she wants me to have those...but I’ve told her I’ll pass but thank you for caring.
I just take Nattokinase in capsule form.