Plant-based foods, particularly vegetable parts, function as medicine due to their defense chemicals.

“I've often said, you know, plants, vegetables are they're more medicine than they are food. I think some people can eat vegetables just fine if they ferment them or they cook the heck out of them. But these are the vegetable parts of plants. These are extracts from the leaves or the stems or the roots that we're using in these herbs, whether it's oregano leaf or olive leaf or you know walnut bark things like this these are sort of the vegetable parts of plants and they do have medicinal use.”