When my daughter was about twelve, she ate a bunch of pickled beets. Her urine had a pinkish color to it. I raced her to the Dr. who said it was the beets, and that excessive amounts of watermelon will do the same thing. There is a third food that will do that but he could not remember what it was. Some 56 years later we both remember that episode. What I am saying is that beet juice is a strong substance.