Is Red-gilled Cortinarius edible?

Cortinarius semisanguineus is considered toxic. While it does not contain the deadly orellanine toxins found in some other Cortinarius species (like C. orellanus and C. rubellus), it is known to cause gastrointestinal upset, including nausea, vomiting, and diarrhea. The exact toxic compounds are not fully understood, but consumption is strongly discouraged due to potential adverse reactions and the risk of misidentification with more deadly Cortinarius species.