Polyvinylpyrrolidone (PVP) is a synthetic polymer. Manufacturers add it to tablets as a binder and disintegrant. It helps the ingredients stick together or break apart correctly after you swallow them. This improves the pill's consistency and stability.
PVP is not a nutrient. It does not provide direct health benefits. You find it as an inactive ingredient in pills and capsules, not as a standalone supplement. There are no dietary benefits or active health uses for taking PVP by itself.