What specific gene allows Japanese gut bacteria to efficiently digest marine polysaccharides like fucoidan?
Answer
The gene called srfA
The ability of the Japanese population to consume high volumes of seaweed efficiently is linked to specialized gut bacteria possessing unique genetic machinery. Specifically, studies indicate that certain common gut bacteria found in Japanese individuals possess the srfA gene. This gene grants them the necessary capability to digest complex marine polysaccharides, such as fucoidan, which are difficult for the digestive systems of many Western individuals to process effectively. This biological adaptation removes a significant hurdle for high seaweed consumption, allowing for efficient nutrient extraction.
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