Studies revealed that Kimchi is a functional food that has beneficial properties that activate defenses at the cellular level with scientifically proven effects on the health of the immune system.
MADRID, Nov 29. (EUROPA PRESS).- A new clinical study scientifically proven that the kimchiand fermented food traditional Korean but it is being increasingly used in kitchens from many other countries, improves the function of human immune cells and maintains the balance of immune system. This is the first study to world level who has elucidated the immunological effects of kimchi at the single-cell level and demonstrated that its consumption can contribute not only to metabolic healthbut also immunological.
He World Kimchi Institutea research institute funded by the government and assigned to Ministry of Science and ICTpublished the results of a single cell genetic analysis which suggests that kimchi consumption has immunomodulatory effectswhich include the removal of the excessive immune response and, at the same time, the improvement of defense functions.
The participants of this study They were overweight adults, divided into three groups. Participants in each group consumed a placebo, kimchi powder made from naturally fermented kimchi, or kimchi powder made from kimchi fermented with a starter culture for 12 weeks. After the 12-week intervention, peripheral blood mononuclear cells (PBMCs) were collected and single-cell transcriptomic analysis (scRNA-seq) was performed. By tracking changes in each cell’s gene expression using this cutting-edge technique, the research team was able to reveal subtle changes in the immune response that are difficult to detect with conventional tests.
The food that strengthens your defenses the most: the world’s first scientific explanation of the benefits of kimchi https://t.co/r8glo0o9hQ
— Infosalus (@infosalus_com) November 29, 2025
The analysis of the results, published in the journal npj Science of Foodindicated that, in the groups that consumed kimchi, the
function of antigen-presenting cells (APCs), which recognize foreign invaders, such as bacteria and viruses, and transmit signals. Furthermore, CD4+ T lymphocytes differentiated into defense cells and regulatory cells in a balanced manner. These results suggest that kimchi not only stimulates the immune system, but also acts as a precision regulator that enhances the immune system’s defense capacity when necessary and suppresses unnecessary and excessive responses.
Furthermore, differences in immunomodulatory effects were observed depending on the kimchi fermentation method used. Although both the
Naturally fermented kimchi and those fermented with starters had positive effects on maintaining immune balance, the latter showing a more pronounced immunomodulatory effect, strengthening the ability of immune cells to recognize antigens and suppressing unnecessary signals. These results suggest that the health functionality of kimchi can be systematically improved using starter technology in the future.
“Our research has shown for the first time in the world that kimchi has two simultaneous effects: the activation of defense cells and the suppression of excessive response,” highlighted Dr. Woo Jae Lee of the World Kimchi Institute, who led the research team. “We plan to expand international research on kimchi and lactic acid bacteria in relation to immune and metabolic health in the future.”
A new 12-week #clinicaltrial has found that #kimchi #kimchi one of #Korea’s most iconic fermented foods acts as a “precision regulator” of the #immunesystemstrengthening defense functions while also preventing excessive immune responses. pic.twitter.com/75zWNii6t3
— Dr Melvin Sanicas (@Vaccinologist) November 26, 2025
The results of this research contribute to consolidating kimchi not only as a traditional fermented food, but also as a functional food with scientifically proven effects on immune health. The findings of this study are expected to be applied in various fields, such as the development of healthy functional foods, improving the effectiveness of vaccines, and preventing immune diseases.