01/08/2026
A study using human intestinal cells found that sauerkraut helps strengthen the gut barrier.
In lab testing, it improved barrier strength by up to 53% and helped reduce intestinal inflammation.
This is important because a strong gut barrier plays a key role in immune health, inflammation, and brain health, and really impacts overall wellbeing.
When the gut barrier is compromised, digestive symptoms can show up.
It can also contribute to what’s often called “leaky gut,” where bacteria and proteins that should stay in the gut pass into circulation and trigger bigger issues.
Interestingly, these benefits weren’t seen with raw cabbage. This highlights how important fermentation can be for human health.
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