Last verified: 17 days ago
Gellan Gum
Also known as: low acyl gellan gum, LAGG, high acyl gellan gum, E418, Kelcogel
Evidence under review. — Not yet rated
A food-grade gelling agent that may blunt blood sugar spikes when cooked into starchy foods like white rice.
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What it does
Gellan gum is a bacterial polysaccharide widely used as a food thickener and gelling agent. When cooked into white rice, it forms a gel structure that slows starch digestion, meaningfully reducing...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose for dietary supplementation; 3% w/w added to cooked rice used in one clinical study
What the Science Says
Gellan gum is a bacterial polysaccharide widely used as a food thickener and gelling agent. When cooked into white rice, it forms a gel structure that slows starch digestion, meaningfully reducing the blood sugar spike after eating. It is also used extensively in pharmaceutical research as a carrier material to improve drug delivery — not as a standalone health supplement.
What It Doesn't Do
Not a weight loss ingredient. No evidence it burns fat or suppresses appetite. Won't lower blood sugar on its own as a capsule or powder supplement. Not a probiotic or prebiotic with proven gut flora benefits. The drug-delivery research does not mean it has therapeutic effects by itself.
Evidence-Based Benefits
Adding gellan gum to white rice significantly reduces the post-meal blood sugar spike in healthy adults.
Weak EvidenceEffective at: 3% w/w added to cooked white rice
Supporting studies (click to view on PubMed):
Used as a gel-forming polymer in drug formulations to extend release and improve medication bioavailability.
Weak EvidenceEffective at: 0.5% w/v in mucosal gels; variable in tablet formulations
Supporting studies (click to view on PubMed):
Absorption & Bioavailability
Unknown as a standalone supplement. As a gel-forming fiber, it is largely not absorbed — its effects appear to be mechanical (slowing digestion) rather than systemic.
Red Flags to Watch For
- Most research involves gellan gum as a pharmaceutical excipient or drug carrier, not as a health supplement — marketing it as a therapeutic ingredient is misleading.
- The only human dietary study had just 12 participants, making blood sugar claims preliminary at best.
- Products listing gellan gum as an 'active' ingredient are likely misrepresenting its role — it is primarily a texture/stabilizing agent in foods and supplements.
- No long-term safety or efficacy data exists for gellan gum consumed as a dietary supplement at meaningful doses.
Products Containing Gellan Gum
See how Gellan Gum is used in these analyzed products:
Frequently Asked Questions
What does Gellan Gum do?
A food-grade gelling agent that may blunt blood sugar spikes when cooked into starchy foods like white rice.
What is the effective dose of Gellan Gum?
No established dose for dietary supplementation; 3% w/w added to cooked rice used in one clinical study
Is Gellan Gum safe?
Most research involves gellan gum as a pharmaceutical excipient or drug carrier, not as a health supplement — marketing it as a therapeutic ingredient is misleading.
What doesn't Gellan Gum do?
Not a weight loss ingredient.
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25