Mucin Layer

It remains unresolved whether Akkermansia reduces or helps maintain the mucin layer under different circumstances. Akkermansia lives on and consumes the mucin lining the gut. The mucin layer is part of the protective interface between gut contents and the body. Akkermansia's consumption of mucin may be part of mucin regulation or renewal rather than simply destructive. The article raises concern about long-term fasting and low mucus availability without making a firm recommendation.