May Strengthen Your Immune System

Numerous nutrients in natto may support a stronger immune system. To start, foods high in probiotics like natto support balanced gut flora. In turn, a balanced gut flora hinders the development of dangerous bacteria and may even increase the production of natural antibodies in your body. Probiotics also lower your risk of infection and may hasten your recovery time if you do become ill. In one study, elderly participants received either a placebo or 2 billion CFU of B. subtilis, the probiotic strain present in natto. Over the course of the four-month research, those who received the probiotic strain had a 55% lower chance of developing a respiratory illness.

Additionally, eating a diet high in probiotics may lower the chance of having antibiotics to recover from infection by about 33%. Natto is high in probiotics and is also high in vitamin C, iron, zinc, selenium, and copper, all of which are essential for immune system health.