Resistant starch is one of the most fascinating nutrients you might not be eating enough of. Unlike regular starches, resistant starch resists digestion in the small intestine and acts more like fiber, offering significant health benefits for your gut, blood sugar, and overall well-being.
But not all resistant starches are created equal. There are four distinct types of resistant starch, each with unique properties, sources, and effects on the body. Understanding these types can help you make smarter food choices and harness their benefits more effectively.
The Four Types of Resistant Starch
Type 1: Physically Resistant Starch
-
What It Is: Starch that’s physically trapped within the fibrous walls of whole grains, seeds, and legumes. Because your digestive enzymes can’t access it, it passes through your digestive system undigested.
-
How Your Body Reacts: Type 1 starch acts as a prebiotic, feeding beneficial gut bacteria. It slows digestion and promotes a gradual release of energy, keeping you full longer.
-
Sources: Lentils, chickpeas, barley, and unprocessed whole grains.
-
Best Use: Incorporate into salads, soups, or as roasted snacks to boost fiber intake.
Type 2: Naturally Resistant Starch
-
What It Is: Starch with a naturally resistant molecular structure, commonly found in raw foods. This type is less accessible to digestive enzymes, even without cooking.
-
How Your Body Reacts: Type 2 starch is particularly effective at reducing blood sugar spikes after meals. It’s also a powerful prebiotic, supporting gut health.
-
Sources: Green bananas, raw potatoes, and high-amylose corn.
-
Best Use: Blend green bananas into smoothies or use raw potato starch as a supplement in drinks.
Type 3: Retrograded Starch

-
What It Is: Starch that becomes resistant after being cooked and cooled, a process called retrogradation. During cooling, the starch molecules reform into a structure that resists digestion.
-
How Your Body Reacts: Type 3 starch is highly beneficial for stabilizing blood sugar and enhancing gut health. It’s also incredibly versatile, making it easy to include in everyday meals.
-
Sources: Cooked and cooled rice, potatoes, sweet potatoes, and pasta.
-
Best Use: Perfect for meal prep—cook, cool, and reheat foods like potato salad, rice bowls, or noodle dishes to boost resistant starch content.
Type 4: Chemically Modified Starch
-
What It Is: Industrially processed starches designed to resist digestion. These are often used in packaged and processed foods to enhance texture and shelf life.
-
How Your Body Reacts: While effective at adding fiber, Type 4 starch lacks the natural prebiotic benefits of other types. Its chemical modifications may not align with whole-food dietary preferences.
-
Sources: Modified tapioca starch, high-amylose maize starch, and resistant maltodextrins.
-
Best Use: Used in processed foods; less ideal for whole-food-focused diets.
How Resistant Starch Benefits Your Body
While the four types of resistant starch differ in how they’re formed and consumed, they share common health benefits:
-
Prebiotic Power: Resistant starch feeds beneficial gut bacteria, improving microbiome diversity and reducing inflammation.
-
Blood Sugar Stabilization: By slowing digestion, resistant starch helps prevent blood sugar spikes, offering a steady energy release.
-
Improved Satiety: Resistant starch promotes a feeling of fullness, making it a helpful ally for weight management.
-
Gut Health: It acts like soluble fiber, reducing constipation and promoting regular bowel movements.
Which Type Is Best for You?
The "best" resistant starch depends on your goals:
-
For Gut Health: Focus on Type 1 (whole grains, lentils) and Type 2 (green bananas, raw potato starch) for their prebiotic benefits.
-
For Blood Sugar Control: Type 3 (cooked and cooled foods) offers the most accessible way to stabilize blood sugar while enjoying everyday meals.
-
For Convenience: If whole foods aren’t always an option, Type 4 can add resistant starch to your diet in processed foods, though it’s less ideal than natural sources.
How to Incorporate Resistant Starch into Your Routine
Here are some practical tips to make resistant starch part of your daily diet:
-
Meal Prep with Retrograded Starch: Cook and cool rice, potatoes, and noodles for use in salads or reheated meals.
-
Snack Smart: Roast lentils or chickpeas for a high-Type 1 starch snack.
-
Blend It In: Add raw potato starch or green bananas to smoothies for a convenient Type 2 starch boost.
-
Explore Functional Foods: Try high-protein noodles with resistant starch as part of the formula, like KYUNU, or products specifically designed to balance nutrition and functionality with resistant starch.
Why We’re Passionate About Resistant Starch
At KYUNU, we’ve embraced the science of resistant starch to develop products that fuel your body and satisfy your cravings. Our high-protein noodles, made with ingredients high in Type 3 resistant starch, like mung bean, potato, and sweet potato starches. Plus, our noodles are frozen, which contribute to retrogradation of more starch, contributing to a higher resistant starch content.
Resistant starch isn’t just a trend; it’s a key to eating smarter and living better. Ready to make it part of your lifestyle? Explore our products and discover how we’re revolutionizing mealtime, one bite at a time.