According to Kobert the substance formed from choline on the decay of the mushrooms containing it is not muscarine, but a very closely related alkaloid, neurin.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Try to buy the kind of lecithin that has the highest phosphatidyl choline content because this substance is the second benefit of taking lecithin.
"How and When to Be Your Own Doctor"
Dr. Isabelle A. Moser with Steve Solomon
Phosphatidyl choline is another precursor used by the body to build acetylcholine and helps maintain the nervous system.
"How and When to Be Your Own Doctor"
Dr. Isabelle A. Moser with Steve Solomon