HealthyPIG Magazine

Ergothioneine is an amino acid found primarily in mushrooms and red and black beans. It is also found in animals that eat grass containing ergothioneine. Ergothioneine is sometimes used as a medicine.
People use ergothioneine to treat joint pain, liver damage, cataracts, Alzheimer's disease, diabetes, heart disease, wrinkles and other conditions, but there is no good scientific evidence to support these uses.