Did You Know!
Some muscle diseases can cause dark, cola-colored urine after exercise.
In disorders involving abnormal muscle-energy metabolism, strenuous activity can cause muscle fibers to break down and release a protein called myoglobin into the bloodstream. The kidneys filter it into the urine, sometimes turning urine brown or cola-colored. One example is McArdle disease, a rare genetic disorder that prevents muscles from properly breaking down stored glycogen during exercise.
