Kimchi, the fermented Korean dish based on cabbage and other vegetables, has in recent years been known mainly for its contribution to gut health and metabolism. But a new study published in the scientific journal Nature suggests a deeper picture: Kimchi may directly affect the immune system, and with a particularly high level of precision.The researchers examined what happens to immune system cells in people who consumed kimchi for 12 weeks. And the results? A focused and precise change in the