Konjac Flour (Glucomannan) Overview
Quick Carb Snapshot
- Carbs (per 100 g): ~0 g net (almost all fiber)
- Carbs (standard portion): ~0 g net per teaspoon
- Glycemic Index: Zero
- Best Substitutes: Xanthan gum, psyllium husk
- Diabetic-Friendly? Yes
- Keto-Friendly? Yes
Key Traits
- Texture: Gel-forming when hydrated
- Flavor: Neutral
- Carb Impact: Essentially zero
- GI / GL Notes: No glucose impact
- Common Uses: Thickening sauces, baking, noodle-making
Best For
- Low-carb thickening
- Gluten-free binding
- Adding fiber to recipes
Avoid For
- Using too much (can gel excessively)
- Insufficient hydration
- Sensitive digestion in large amounts
How Konjac Flour Compares to Higher-Carb Ingredients
Texture & Structure
- Forms gels without starch
- Much stronger thickening than flour
- Requires tiny quantities
Flavor & Nutrition
- Zero net carbs
- Extremely high soluble fiber
- No caloric contribution
How to Substitute Konjac Flour
Low-Carb Swaps by Use
- Thickening: Xanthan gum
- Baking binder: Psyllium husk
- Noodles: Shirataki products
Tips for Successful Swaps
- Use very small amounts
- Whisk thoroughly to prevent clumps
- Allow time to hydrate fully
Storage & Shelf Life
Pantry
Store airtight in a cool, dry place.
Cooked
Prepared foods with konjac keep several days refrigerated.
Signs It Has Gone Bad
- Moisture clumping
- Off odor
- Discoloration
Carb / Keto & Dietary Notes
- Carb Impact: Zero net carbs
- Keto Use: Excellent
- Diabetic Notes: No glucose impact
This information is for educational purposes only and not medical advice.
Allergy & Dietary Flags
- Gluten-Free: Yes
- Nuts: No
- Nightshade: No
- Vegan / Vegetarian: Yes
Carb & Dietary Tags
- Low-Carb: Yes
- High-Carb: No
- Keto-Friendly: Yes
- Diabetic-Friendly: Yes
- Low GI: Yes
Related Ingredients
Often compared to xanthan gum and psyllium husk, konjac flour is a powerful zero-carb thickener.