One Human Race Is The Best At Digesting Plant Matter

By Joshua T. Garcia on Wednesday, April 2, 2014
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“I am a vegetarian for health reasons—the health of the chicken.” —Isaac Bashevis Singer, Judaism and Vegetarianism

In A Nutshell

Sushi is one of the most popular dishes in the world, but the raw seaweed and fish can often be difficult to digest, especially due to the fact that plant matter actually cannot be independently digested. Whenever you eat plant matter, microorganisms within your body help break it down. Due to their historical relationship with seaweed, the Japanese are host to bacteria that are specialized to eat seaweed. These microorganisms are not present in other humans.

The Whole Bushel

No animals on the planet are actually capable of properly digesting plant matter, including fruits and vegetables. This rule even applies to herbivores. A major component of plant matter is cellulose, and our bodies are simply incapable of breaking it down.

Well, not without help. You might not be aware of it, but you and the entire animal kingdom are involved in a mutually beneficial relationship with trillions of microbes. In some animals like cows, specific microbes make it possible for them to digest cellulose. In other animals, specific microbes convert cellulose to something that can be digested. Either way, without specialized digestion microbes, nobody would be eating plants at all.

The Japanese have been eating sushi since the eighth century. Of course, a major component of sushi is raw seaweed, the tightly wrapped plant that completes the ensemble. Seaweed is still a crucial part of the typical Japanese citizen’s diet—on average, he or she will eat 14.2 grams of seaweed a day.

It’s no wonder, then, that the Japanese have specialized bacteria, known as Bacterioides plebeius, in their digestive system to help with the breakdown of seaweed. This mutually beneficial relationship has been cultivated for centuries, a fine-tuned product of natural selection.

How did the bacteria get there in the first place? There were already microbes feeding on the seaweed when they were harvested by the ancient or medieval Japanese. By eating the seaweed raw, the Japanese gave the bacteria the chance to swap genetic information with microbes already living in the stomach of the Japanese—or simply played host to the alien bacteria.

Bacteriodes plebius are also found in the stomachs of bugs that feed on seaweed. They are not found in other humans. By breaking down seaweed more effectively, the host can derive more energy from seaweed.

Seaweed is high in dietary fiber. It is also a source of iodine, vitamin A, vitamin B-12, calcium, protein, and healthy fats.

Show Me The Proof

nature: The sushi factor
US Department of Energy: Office of Science: Bacteria and Digestion
Health Benefits of Eating Seaweed

  • percynjpn

    Wow! They truly are the chosen people of Asia, just as they’ve always believed – Banzaaaaiii!!!

  • Redboy.apbt

    America is the only nation that matters the people of this nation is the only race that matters so eating grass is all they good for GOD BLESS AMERICA

    • TheMadHatter

      I can’t understand you to the point that I can’t tell if you’re trolling. I’m going with yes.

      • andycanuck

        Yes, a troll and probably a leftist one who thinks that’s what American conservatives sound like.

        • The Phantom

          Most likely a Canadian troll who lives in Toronto or Vancouver. And wears a plaid fedora.

    • edzyl blane

      Google translate or just trolling?

  • Clyde Barrow

    “Seaweed is high in dietary fiber. It is also a source of iodine, vitamin A, vitamin B-12, calcium, protein, and healthy fats.”

    And thanks to the Fukushima triple meltdown, it now has hints and notes of Cesium-137, Strontium-90, and Iodine-131.

  • oouchan

    Love sushi! I only started to like it about 2 years ago and now I’m a rabid fan. Got a revolving sushi bar near my house that is quite good. High quality and such an assortment to choose from. Each time I go, I try something new. Also, they have new ones to choose from every month.

    Nice info.

  • inconspicuous detective

    not to nitpick, but wouldn’t the “race” be asian and ethnicity be japanese? curious since i’m not certain.

  • Tanuki Man

    There is some seaweed in sushi but the amount pales in comparison to the vinegared rice and the egg or fish or other protein. So the use of sushi as an example is weak. However the Japanese eat a lot of seaweed in such things as seaweed salad so the greater point is true.

  • Redboy.apbt

    Im no troll and im from longbeach not Canada dont bash me on a website roll up in my town if you wana test my power i make the river flow blood b^z up redboy out GOD BLESS AMERICA