When pickled, they retain many of their nutrients, making pickled beets similarly nutritious to eating them in other ways. Types of Fiber in Pickled Beets The two main types of fiber found in pickled beets include pectins and oligosaccharides. Your Athletic Performance May ImprovePeople who eat pickled beets may also experience improved athletic performance. You Can Help Ward Off Oxidative StressOverall health and chronic disease prevention are additional benefits of regularly eating pickled beets. Harmless Side Effect Eating pickled beets may discolor your urine or stool, giving it a pink or red colour.