1. Indigestible Function

Resistant starch (RS) passes through the stomach and small intestine without being digested or absorbed, reaching the depths of the large intestine like dietary fiber. Although it looks like ordinary starch, its unique indigestibility makes it a rare food ingredient. Given its potential to address modern lifestyle-related health concerns, RS is attracting attention from researchers and medical professionals worldwide.

2. Prebiotic Function

When RS reaches the large intestine, it becomes a valuable nutrient source for gut bacteria. Studies have shown that it promotes the growth and activation of beneficial bacteria, leading to various health benefits. Notably, its synergistic effect in enhancing the growth of probiotics like lactic acid bacteria and bifidobacteria is referred to as “synbiotics” and is gaining media attention as a novel approach to gut health.

3. Postbiotic Function

Once beneficial bacteria in the gut feed on RS, they produce several beneficial short-chain fatty acids (SCFAs). Among these, butyrate is particularly significant due to its positive effects in the large intestine, acting as a crucial ally in maintaining a healthy gut microbiome.