That movie is expected to arrive in fall 2015, but in the meantime, we're celebrating Christmas Vacation.. In honor of the holiday classic's 25th anniversary, we're catching up with where the cast is now in the gallery above.
It turns out that the active ingredient in Pepto-Bismol (bismuth subsalicylate) contains a chemical called bismuth. When a small amount of bismuth combines with trace amounts of sulfur, a black-colored substance (bismuth sulfide) is formed.
Black stools can also be caused by supplements such as iron or medicines such as Pepto-Bismol. Certain foods, like blueberries or black licorice, can also turn the stool black. Your doctor can tell if there is any blood in the stool by taking a stool sample from the rectum and performing a simple test in the office.