Dr. Suzanne Devkota

where they looked at microbiomes around the world and really looked at metrics of diversity and associations with disease.

And what they found is the diversity of plants in your diet relate to the more diverse microbiome.

And they found that individuals consume 40 or more different plant sources within their diet in a given week.

had a more diverse, robust microbiome.

And plant sources come in all forms.

And so what does that do to us?

Probably the fiber content of the diet.

And fiber is really the key.

It's not sexy.

It sounds boring, but it is critically important.

And there's a lot of deep research on what fiber does to certain microbes, what those microbes do with the fiber.

And they relate to everything from educating the immune system, which we talked about earlier,

to maintaining an anaerobic environment, a low oxygen environment in the gut, which is key for maintaining a gut barrier.

So it's all cyclical, but it really starts with the diet.

And feeding your good microbes through fiber, in my opinion, is you can't get around that.

And just to add to that, I'm a big fan of fermented foods.

Thank you for adding that in.

The additional benefit to the fermented foods that we don't talk as much about is not just microbes in them, but all the postbiotic, the chemicals that the microbes are producing.

Fermented foods are like a living food.

And so you're getting not just live bacteria, but you're getting this...