This study examined the fiber content of leftover materials from processing fruits and vegetables, finding that pomace (processing waste) is an excellent source of dietary fiber. Chokeberries and blackcurrants were found to have particularly high fiber levels, while apples and carrots were rich in soluble fiber types. These waste products can be used to create nutritious fiber-enriched foods and supplements, providing both environmental benefits by reducing waste and health benefits through increased dietary fiber consumption.