The primary ingredient in kimchi is napa cabbage, although other vegetables and seasonings can also be included. Napa cabbage is combined with a variety of spices, such as garlic, ginger, chili pepper flakes, and fish sauce, to create this traditional fermented Korean dish. Kimchi is not only a staple side dish in Korean cuisine but also known for its health benefits, including probiotics from the fermentation process, which contribute to digestive health and overall well-being.