Cattle gallstones are valuable due to their use in Chinese medicine. Some stones sell for twice the price of gold.

A prized ingredient in China’s multibillion-dollar industry for traditional medicine, gallstones have become the must-have item among underground traders and armed robbers in Brazil.

Medically reviewed by Robert Burakoff, MD Gallstones are hardened build-ups of calcium and cholesterol that form in your gallbladder. They range in size from grains of sand to golf balls. Gallstone ...

Problems with the gallbladder are common and affect about 10-15% of people in the United States. Gallstones are most common in adults older than 40 years old, those who are overweight, and women.