Health Guide

High amylose polysaccharide

Think of 'High Amylose Polysaccharide' as your gut's favorite fertilizer. While often labeled as 'Resistant Starch' (RS) or 'Type 2 Starch' on supplement bottles, this specific carbohydrate structure resists digestion in your small intestine. Instead of turning into sugar like regular carbs, it travels to your large intestine where it feeds beneficial gut bacteria. This process creates Short-Chain Fatty Acids (SCFAs), specifically butyrate, which is fuel for your colon cells. It is the bridge between what you eat and your microbiome's health.
Evidence BasedDietary Supplement
High amylose polysaccharide
VERIFIED SOURCE

Bio-Activity Analysis

Butyrate Production: Cooked vs. Cooked & Cooled

SCIENTIFIC DATA VISUALIZATION

Y-Axis
Butyrate Yield (Relative)
Food Preparation

Health Benefits & Sources

Why You Need It

  • Gut Microbiome Support: Feeds beneficial bacteria, increasing diversity.
  • Blood Sugar Stability: Prevents sharp insulin spikes by slowing glucose absorption.
  • Improved Insulin Sensitivity: Helps your body use insulin more effectively.
  • Enhanced Satiety: Increases feelings of fullness, aiding weight management.

Deep Dive

High amylose polysaccharides are unique because of their long, linear chains (unlike the branched chains of amylopectin). This structure makes them resistant to your digestive enzymes. When they reach the colon unharmed, your bacteria ferment them. The star product of this fermentation is Butyrate. Butyrate reduces gut inflammation, strengthens the gut barrier (preventing 'leaky gut'), and has been linked to lower risks of colon cancer. Furthermore, because this starch bypasses digestion, it contributes very few calories while signaling your body to rely on stored fat for energy.

Natural Food Sources

Nature provides this starch in specific states—usually when foods are cooked and then cooled. This process, called retrogradation, changes the starch structure to become more resistant.

FoodAmount% DV (Estimate)
Green Bananas1 medium~15-20g
Potatoes (Cooked & Cooled)1 cup~8-10g
White Beans1 cup~5-7g
Oats (Raw/Rolled)1/2 cup~4-6g
Plantains1 cup~6-8g

Supplementation

If you struggle to eat cooked-and-cooled carbs or fermented foods, supplements like Hi-Maize Resistant Starch (derived from corn) or Green Banana Flour are excellent options.

Dosage: Start with 1 teaspoon (5g) daily and slowly increase to 1-2 tablespoons (15-20g) over two weeks. Taking it with a meal helps digestion; taking it before bed is popular for overnight gut repair.

Top Food Sources

Green Bananas
The gold standard for natural RS
Cooked & Cooled Potatoes
Must be cooled for 12+ hours
White Beans
Also high in fiber
Raw Oats
Overnight oats are perfect
Plantains
Cooked and cooled

Frequently Asked Questions

It resists digestion in the small intestine. Instead of breaking down into glucose (sugar) immediately, it stays intact until it reaches the colon.
Cooking actually makes starch digestible, BUT cooling it down afterwards (retrogradation) turns it back into resistant starch. Think potato salad, not hot fries.
It can help. It increases satiety (fullness) and slightly reduces the total calories you absorb from other foods eaten at the same meal.
Gut changes take time. You might feel fuller immediately, but significant microbiome shifts usually take 2-4 weeks of consistent intake.

Safety & Side Effects

Safety & Side Effects

Who should be careful?

  • Individuals with SIBO (Small Intestinal Bacterial Overgrowth): Feeding bacteria in the wrong place can worsen symptoms.
  • Those with FODMAP intolerance: While technically low FODMAP, large amounts can trigger symptoms.

Side Effects:

  • Gas and Bloating: This is the most common side effect as your microbiome adjusts. Start low and go slow to avoid 'gas explosions.'
  • Loose Stools: High doses can have a mild laxative effect.

Chemical Safety: This is a natural carbohydrate polymer, generally recognized as safe (GRAS) by the FDA. It is non-toxic.

Scientific References

  • [1]Higgins, J. A. (2014). Resistant starch: metabolic effects and potential health benefits. *Journal of Nutrition*.
  • [2]Bodinham, C. L., et al. (2010). Acute ingestion of resistant starch reduces food intake in healthy adults. *British Journal of Nutrition*.
  • [3]Topping, D. L., & Lockett, T. J. (2010). Butyrate production from resistant starch. *American Journal of Clinical Nutrition*.