Here is a link to the paper: https://www.nature.com/articles/s41598-024-78721-8
Our analyses revealed traces of Peganum harmala, Nimphaea nouchali var. caerulea, and a plant of the Cleome genus, all of which are traditionally proven to have psychotropic and medicinal properties.
Peganum harmala would be Rue tea. They trip on it to this day IIRC.
Bodily fluids: “...This includes fluids like breast milk, mucous fluids, and blood.”