Tofu is definitly NOT fermented. Temphe is.
I think the original question, however, concerned non-fermented soy sauce.
Is it "dangerous?" Nah. It's just not worth a tinker's dam. If you want
to get some real "soy" sauce, buy a good quality Tamari. The flavor is
incredible. Is it more "healthy?" For the amounts you normally use, it
can't help or hurt.
Yes, I hear the sodium people screaming. Sodium is not necessarily a bad
thing. If you have sodium sensitive hypertension, you may want to be more
careful about how much you use. If you're like me, splash it on and enjoy.
Happy holiday!
Bev