What Is Agar (Agar-Agar)? Safety, Risks & Alternatives

⚡ Quick Facts

E-NumberE406
FDA StatusFDA classifies agar as GRAS (21 CFR 182.1115). No ADI established. Approved for use in foods as a stabilizer, thickener,…
EFSA StatusEFSA re-evaluated in 2016 and maintained approval with no numerical ADI (acceptable daily intake not specified — conside…
SeverityModerate Risk (6/10)

What Is Agar (Agar-Agar)?

A natural gelling agent derived from red seaweed (Rhodophyta), primarily species of Gelidium and Gracilaria. Used for centuries in East Asian cuisine, agar forms firm, heat-resistant gels and is widely used as a vegetarian/vegan substitute for gelatin in desserts, confections, canned foods, and microbiological growth media.

Mechanism of Action

Agar consists of two polysaccharides: agarose and agaropectin. When dissolved in hot water and cooled, agarose molecules form a double-helix structure that creates a rigid three-dimensional gel network. Agar is essentially indigestible by human enzymes, passing through the GI tract as soluble fiber. It absorbs water and increases fecal bulk, which has led to its use as a mild laxative and appetite suppressant.

Why People Avoid Agar (Agar-Agar)

Regulatory Status

🇺🇸 FDA

FDA classifies agar as GRAS (21 CFR 182.1115). No ADI established. Approved for use in foods as a stabilizer, thickener, and gelling agent with no specific usage limits.

🇪🇺 EFSA

EFSA re-evaluated in 2016 and maintained approval with no numerical ADI (acceptable daily intake not specified — considered safe at current usage levels). No safety concerns identified at typical dietary exposures.

Regulatory Timeline

1658 Agar discovered in Japan by innkeeper Mino Tarōzaemon
1882 Robert Koch uses agar as a microbiological culture medium
• 1970s — FDA confirms GRAS status for food use
2016 EFSA re-evaluates agar (E 406) and confirms safety

Products Containing Agar (Agar-Agar) (4 found)

#ProductBrandScore
1Holday cookies from Costco—25/100
2Spring Valley 165mg MagnesiumWalmart60/100
3ARCHER FARMS, STRAWBERRY CHEESE DANISHTarget Stores68/100
4MARKETSIDE FRUITS OF THE SEASON PIE, FRUITS OF THE SEASONWal-Mart Stores, Inc.68/100

Average safety score for products containing Agar (Agar-Agar): 55/100

Safer Alternatives

✅
Gelatin (animal-derived)
✅
Carrageenan
✅
Pectin
✅
Konjac glucomannan
✅
Methylcellulose

Scientific Sources

  1. EFSA (2016). Re-evaluation of agar (E 406) as a food additive. EFSA Journal, 14(12), 4645
  2. FDA (21 CFR 182.1115). Agar-agar — GRAS substances
  3. Armisen & Galatas (2009). Agar. In Handbook of Hydrocolloids (2nd ed.), Woodhead Publishing, 82-107

Frequently Asked Questions

What is Agar (Agar-Agar)?
A natural gelling agent derived from red seaweed (Rhodophyta), primarily species of Gelidium and Gracilaria. Used for centuries in East Asian cuisine, agar forms firm, heat-resistant gels and is widely used as a vegetarian/vegan substitute for gelatin in desserts, confections, canned foods, and microbiological growth media.
Is Agar (Agar-Agar) safe?
Agar (Agar-Agar) is FDA classifies agar as GRAS (21 CFR 182.1115). No ADI established. Approved for use in foods as a st. EFSA re-evaluated in 2016 and maintained approval with no numerical ADI (acceptable daily intake not.
Where is Agar (Agar-Agar) banned?
Agar (Agar-Agar) is not currently banned in any major market according to our database.
What are alternatives to Agar (Agar-Agar)?
Safer alternatives to Agar (Agar-Agar) include: Gelatin (animal-derived), Carrageenan, Pectin, Konjac glucomannan, Methylcellulose.
How can I avoid Agar (Agar-Agar)?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag Agar (Agar-Agar) and suggest safer alternatives.
What foods contain Agar (Agar-Agar)?
Agar (Agar-Agar) is commonly found in: Jelly desserts, Gummy candies (vegan), Canned meats, Ice cream, Bakery glazes, Asian desserts (anmitsu, yōkan), Vegetarian capsules. Our database has flagged it in 4 products.
What are the side effects of Agar (Agar-Agar)?
Concerns about Agar (Agar-Agar) include: Can cause bloating and gas due to fermentation of indigestible polysaccharides; May interfere with nutrient absorption when consumed in large quantities; Potential choking hazard in dry form if swallowed without adequate water.
Is Agar (Agar-Agar) natural or artificial?
Agar (Agar-Agar): Agar consists of two polysaccharides: agarose and agaropectin. When dissolved in hot water and cooled, agarose molecules form a double-helix structure.
📬

Get Your Free Weekly Clean Food Guide

Join health-conscious shoppers. Every week: worst products to avoid, cleanest new finds, and FDA recall alerts.

No spam. Unsubscribe anytime.

Scan Any Product for Agar (Agar-Agar)

Point your camera at any food label and instantly know if it contains Agar (Agar-Agar).

Download CheckIt AI — Scan Free →

Related Ingredients

Compare Agar (Agar-Agar)

Agar (Agar-Agar) vs CarrageenanAgar (Agar-Agar) vs Xanthan GumAgar (Agar-Agar) vs Guar GumAgar (Agar-Agar) vs Gellan GumAgar (Agar-Agar) vs PectinAgar (Agar-Agar) vs Locust Bean Gum (Carob Gum)
Red 40 (Allura Red AC)Yellow 5 (Tartrazine)Yellow 6 (Sunset Yellow FCF)AspartameBHA (Butylated Hydroxyanisole)BHT (Butylated Hydroxytoluene)Sodium NitriteCarrageenan Ingredient Comparisons All Ingredients Ingredients Banned in Europe Scoring Methodology

⚕️ This page provides ingredient information for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.

Scanner Apps

Gluten Scanner AppDairy Scanner AppSeed Oil Scanner AppPeanut Allergy Scanner AppADHD Food Scanner AppIBS Food Scanner AppPregnancy Food Scanner AppCarnivore Diet Scanner AppKeto Scanner AppPaleo Scanner AppVegan Scanner AppCeliac Scanner AppMigraine Food Scanner AppKidney Diet Scanner AppCrohn's Food Scanner AppThyroid Scanner AppPCOS Food Scanner AppGout Food Scanner AppEczema Food Scanner AppToddler Food Scanner AppHeart Health Scanner AppAthlete Nutrition Scanner AppAcne Food Scanner AppFODMAP Scanner AppAIP Scanner AppMold Toxin Scanner AppHistamine Scanner AppOxalate Scanner AppNightshade Scanner AppSoy Scanner AppCorn Scanner AppEgg Allergy Scanner AppTree Nut Scanner AppShellfish Allergy Scanner AppSulfite Scanner AppSalicylate Scanner AppLectin Scanner AppSugar-Free Scanner AppLow Sodium Scanner AppMediterranean Diet Scanner AppWhole30 Scanner AppDiabetic Food Scanner AppColitis Food Scanner AppIC Food Scanner AppLupus Food Scanner AppHashimoto's Scanner AppEndometriosis Food Scanner AppAutoimmune Food Scanner AppBaby Formula Scanner AppPet Food Scanner AppSenior Nutrition Scanner AppOzempic Food Scanner AppWegovy Food Scanner AppMounjaro Food Scanner AppUltra-Processed Food ScannerHalal Food Scanner AppKosher Food Scanner AppAnti-Inflammatory Scanner AppCandida Diet Scanner AppSIBO Food Scanner AppLeaky Gut Scanner AppCholesterol Food Scanner AppBlood Pressure Scanner AppWeight Loss Food Scanner AppPesticide Food Scanner AppHeavy Metal Scanner AppPFAS Food Scanner AppBreastfeeding Food Scanner AppAutism Food Scanner AppFertility Food Scanner AppGAPS Diet Scanner AppElimination Diet Scanner AppLow Carb Scanner AppNanny Food Scanner AppGrocery Store Scanner AppFood Allergy Scanner AppDye-Free Food Scanner AppMuscle Building Scanner AppMarathon Runner Scanner AppKids Food Scanner AppFood Sensitivity Scanner AppClean Label Scanner AppFSA/HSA Food Scanner AppWhole Food Scanner AppDog Food Scanner AppCat Food Scanner App

Ingredient Safety

Red 40Yellow 5Yellow 6AspartameBHABHTSodium NitriteCarrageenanSucraloseTitanium DioxidePotassium BromateHigh Fructose Corn SyrupMSGSodium BenzoateTBHQPolysorbate 80Red 3Caramel ColorSoy LecithinNatural FlavorsAcesulfame-KMaltodextrinXanthan GumGuar GumCitric AcidErythritolBlue 1Propyl GallateMono & DiglyceridesPectinAcacia GumAgarAnnattoAutolyzed YeastAzodicarbonamideBVOCalcium PropionateCarnauba WaxCelluloseDATEMDisodium InosinateGellan GumKonjacLocust Bean GumMethylcelluloseSodium AlginateSodium Aluminum PhosphateTragacanth Gum

Food Safety Answers

Is Red 40 Banned in Europe?What Foods Have Seed Oils?Is Carrageenan Safe?Worst Food AdditivesIs BHA Safe?Does Gatorade Have Food Dye?Titanium Dioxide in FoodIs Aspartame Safe?Is Sodium Nitrite Dangerous?Is MSG Bad for You?What Is HFCS?Is Sucralose Safe?Food Dye Banned in Europe?Is Potassium Bromate Banned?What Is Natural Flavors?Is Soy Lecithin Bad?Is Maltodextrin Bad?Is Xanthan Gum Safe?Is Red 3 Banned?Is TBHQ Bad?Foods Banned in Other CountriesIs Citric Acid Bad?What Is Polysorbate 80?Is Caramel Color Safe?Is Palm Oil Bad?What Is Cellulose in Food?Is Acesulfame-K Safe?Is Erythritol Safe?Is Guar Gum Safe?Is Food in America Safe?Cheerios & PesticidesBest Food Scanner AppHow to Read Food LabelsIs Yellow 5 Safe?Are Preservatives Bad?Artificial Sweetener SafetyIs Canola Oil Bad?Hidden Names for SugarFoods That Cause InflammationIs Annatto Safe?Is Azodicarbonamide Safe?Is Calcium Propionate Safe?Is Carnauba Wax Safe?Is Gelatin Halal?Is Locust Bean Gum Safe?Mono & Diglycerides SafetyIs Pectin Safe?Propylene Glycol in FoodWhat Is Agar Agar?What Is BVO?What Is DATEM?What Is Sodium Alginate?What Is Sodium Benzoate?

Cleanest Rankings

Cleanest Protein BarsCleanest CerealCleanest YogurtCleanest ChipsCleanest SnacksCleanest BreadCleanest SaucesCleanest JuiceCleanest CookiesCleanest CandyCleanest Ice CreamCleanest PastaCleanest Baby FoodCleanest Energy DrinksCleanest Protein PowderCleanest Frozen MealsCleanest CondimentsCleanest SodaCleanest Pet Food

Free-From Finder

Protein Bars Without Seed OilsCereal Without Artificial ColorsSnacks Without PreservativesYogurt Without Artificial SweetenersChips Without Seed OilsCookies Without Artificial ColorsCandy Without Artificial ColorsSoda Without Artificial SweetenersFrozen Meals Without MSGBaby Food Without SugarEnergy Drinks Without SweetenersProtein Bars Without SweetenersSnacks Without Seed OilsCereal Without SugarBread Without PreservativesIce Cream Without CarrageenanPasta Without Gluten

Store Scan Results

Costco Protein Bars RankedWalmart Cereal RankedTarget Snacks RankedWhole Foods Yogurt RankedKroger Bread RankedAldi Snacks RankedCostco Snacks RankedWalmart Chips RankedTarget Cookies RankedTrader Joe's Snacks RankedWhole Foods Bread RankedWalmart Juice RankedTarget Cereal RankedWalmart Bread RankedKroger Snacks RankedAldi Cereal RankedWhole Foods Snacks RankedKroger Cereal RankedAldi Bread RankedTrader Joe's Cereal RankedCostco Bread Ranked

Ingredient Comparisons

Red 40 vs Yellow 5Red 40 vs Yellow 6Aspartame vs SucraloseAspartame vs HFCSBHA vs BHTRed 40 vs AspartameCarrageenan vs Soy LecithinSucralose vs HFCSTBHQ vs BHATBHQ vs BHTRed 40 vs Titanium DioxideRed 40 vs Caramel ColorMSG vs Natural FlavorsSodium Benzoate vs Potassium BromateYellow 5 vs Red 3Polysorbate 80 vs CarrageenanXanthan Gum vs Guar GumRed 40 vs Red 3Erythritol vs SucraloseMaltodextrin vs HFCSAll Ingredient Comparisons

Store Reports

Walmart Report CardTarget Report CardCostco Report CardKroger Report CardWhole Foods Report CardTrader Joe's Report CardAldi Report CardSam's Club Report Card

Original Research

All Research StudiesGrocery Product Safety StudySeed Oil CensusSafest Grocery StoresSchool Lunch Safety ReportMost Common AdditivesBanned Ingredients in US Products

App Comparisons

CheckIt vs YukaCheckIt vs EWGCheckIt vs FooducateCheckIt vs MyFitnessPalCheckIt vs Think DirtyCheckIt vs FigCheckIt vs SooseeCheckIt vs NoomYuka vs EWGYuka vs Fooducate

Guides & Tools

Download CheckIt AIUser ReviewsFood RecallsBanned in EuropeFood Safety ReportIngredient GlossaryStore RankingsIngredient EncyclopediaHealthier Swap FinderOur MethodologyIngredient ComparisonsTopic GuidesAll Food Safety AnswersOpen DataWhat's Really In Your Food
📋 Cite This Data
APACheckIt AI. (2026). "What Is Agar (Agar-Agar)? Safety, Risks & Alternatives | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/agar
MLA"What Is Agar (Agar-Agar)? Safety, Risks & Alternatives | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/agar.
HTML Embed<a href="https://getcheck.it/ingredients/agar">What Is Agar (Agar-Agar)? Safety, Risks & Alternatives | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsagar, title = {What Is Agar (Agar-Agar)? Safety, Risks & Alternatives | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/agar}, note = {Retrieved 2026-03-05} }