Read about this years ago. Can't recall what the process does to the soybean to render it healthy instead of basically a crap toxin, but...yeah. It's a real thing. Fermented = fine. Unfermented = terrible.

I agree. There are many types of soy. There are GOOD soy and BAD soy. Natto is a GOOD type soy. Simply because it is FERMENTED. Sources, studies at https://draxe.com/nutrition/natto/

https://archive.ph/BZp3d

Summary

There’s a lot of controversy around soy and soy-based products like natto. With all the contradictory claims out there from researchers and health experts alike, it’s no wonder that many people are left scratching their heads on whether soy helps or harms your health.

The answer is: It depends. Marketing geniuses have posited soy as the wonder health alternative to virtually everything. In most supermarkets, you’ll find soy milk, soy protein, soybean oil, soy lecithin and even soy soap. Unfortunately, though, many forms of soy are not necessarily as healthy as food manufacturers would like you to believe.

The problem is the soy you see in all these foods is not the traditionally grown crop of Japan. In fact, the majority of soy that you find in in grocery stores is actually genetically modified (GMO), produced in a different way and doesn’t yield the same nutritional benefits.

However, when you ferment soybeans you have a completely different product that boasts an entirely separate set of nutrients, which is why when it comes to soy, the safest and best way to consume it is through fermented foods like miso, tempeh or natto. So what is natto, and how can it impact your health? Let’s dig in.