Fiber is a complex topic with two main types: soluble and insoluble. Soluble fiber remains unchanged until it reaches the colon, where it fuels beneficial microbes, leading to the production of short-chain fatty acids. In contrast, insoluble fiber aids in bowel movement but doesn’t nourish gut bacteria. Additionally, the cooking and cooling of potatoes enhances their resistant starch content, making leftovers a gut-friendly option.
