Since there&#x27;s so much interest in gut biomes you may be interested in learning that what you eat greatly influences your biome. A vegan diet has been shown to substantially change your flora [1] in as little as a day [2]. I also found this video on the role of fiber, our gut flora, and our immune system interesting [3].<p>[1]: <a href="http:&#x2F;&#x2F;www.nature.com&#x2F;ejcn&#x2F;journal&#x2F;v66&#x2F;n1&#x2F;full&#x2F;ejcn2011141a.html" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;ejcn&#x2F;journal&#x2F;v66&#x2F;n1&#x2F;full&#x2F;ejcn2011141a....</a><p>[2]: <a href="http:&#x2F;&#x2F;www.nature.com&#x2F;nature&#x2F;journal&#x2F;v505&#x2F;n7484&#x2F;full&#x2F;nature12820.html" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;nature&#x2F;journal&#x2F;v505&#x2F;n7484&#x2F;full&#x2F;nature1...</a><p>[3]: <a href="http:&#x2F;&#x2F;nutritionfacts.org&#x2F;video&#x2F;prebiotics-tending-our-inner-garden&#x2F;" rel="nofollow">http:&#x2F;&#x2F;nutritionfacts.org&#x2F;video&#x2F;prebiotics-tending-our-inner...</a>