Insulin is a naturally occurring hormone made by the pancreas that helps our body use or store the glucose (sugar) it gets from food. For people with diabetes, either the pancreas does not make enough insulin to meet the body's requirements, or the body cannot properly use the insulin that is made.
The yellow color in normal urine comes from a substance known as urochrome. Urochrome is also known as urobilin and is the result of hemoglobin breakdown. Hemoglobin is the protein in red blood cells that enables oxygen to be taken around the body.
Why is urine brown in color? Brown urine is not a normal variation in the color or urine. Urine that is brown in color may be a consequence of one of the causes of dark yellow urine or red urine progressing further. However, there are certain unique causes of brown colored urine that also needs to be considered.