For healthy skin, collagen is key: This naturally occurring protein keeps skin smooth and youthful, but our bodies produce less collagen as we get older. The result? Thinner skin, dryness, and more wrinkles.
Definition of BLACK BILE. : a humor of medieval physiology believed to be secreted by the kidneys or spleen and to cause melancholy. ADVERTISEMENT.1681. a humor of medieval physiology believed to be secreted by the kidneys or spleen and to cause melancholy. ADVERTISEMENT. 1681.
Bile contains bile salts, fatty acids, cholesterol, bilirubin, and other compounds. The components of bile are synthesized and secreted into bile ducts within the liver itself and bile is then sent to the small intestine. There are many causes of bilirubin in urine: Blockage of bile ducts due to gall stones.