Resistant Starch

Resistant starch is a type of prebiotic fiber that passes through the upper digestive tract undigested, arriving in the colon where it serves as fuel for beneficial gut bacteria, promoting the production of short-chain fatty acids like butyrate that support intestinal health. Research suggests that resistant starch may help improve insulin sensitivity and support more stable blood sugar responses, particularly when starchy foods like rice or potatoes are cooked and then cooled before eating. Studies indicate it may also contribute to increased satiety and modest benefits for weight management, likely through its effects on gut fermentation and metabolic signaling. Common dietary sources and supplement forms include green banana flour, raw potato starch, and retrograded starches from cooled cooked grains, making it a relatively accessible addition to the diet for those interested in gut-supportive nutrition.