👉 The BD fluid, or Bile Duct Fluid, is a clear, colorless liquid produced by the liver and secreted into the bile ducts. It plays a crucial role in digestion by aiding in the emulsification and absorption of fats and fat-soluble vitamins. BD fluid contains various components, including proteins, electrolytes, and bile acids, which help maintain the balance of fluids in the body and support liver function. Abnormalities in BD fluid composition can indicate liver disease or other health issues, making it an important diagnostic marker.