Dried earthworms and ground-up earthworm powder, believe it or not, were (and probably still are) used in traditional oriental medicine.
Today, Boluoke® is a product containing purified enzymes extracted from earthworms.
Like polyphenols in green tea and curcumin in turmeric, the group of enzymes called lumbrokinase is now known as the most valuable ingredient in earthworms.
It is currently one of the most potent natural blood thinners for people with heart disease.