May be protective against cancer

Cancer is one of the top causes of death worldwide. It happens when your body's aberrant cells grow uncontrollably, such as in a tumor. Probiotics found in fermented dairy products are thought to inhibit tumor growth by boosting your immune system. As a result, it is possible that kefir can help fight cancer.

Several test-tube experiments have demonstrated this protective role. According to one study, kefir extract reduced the number of human breast cancer cells by 56%, while yogurt extract only reduced the number by 14%. Remember that human research is required before reaching definitive results.