What Is High Fructose Corn Syrup (HFCS)?

Quick Answer: High fructose corn syrup is a liquid sweetener made from corn starch. HFCS-55 (used in sodas) is 55% fructose, while HFCS-42 (used in processed foods) is 42% fructose. Research links excessive HFCS consumption to obesity, fatty liver disease, and metabolic syndrome.

HFCS became the dominant sweetener in American food after the 1970s due to government corn subsidies making it cheaper than cane sugar. It's found in soda, juice, bread, cereal, ketchup, salad dressing, yogurt, and thousands of other products. The body metabolizes fructose differently than glucose — fructose is processed primarily by the liver, and excessive consumption can lead to non-alcoholic fatty liver disease (NAFLD), insulin resistance, and increased visceral fat. Studies show HFCS consumption correlates with higher rates of obesity and type 2 diabetes. However, some scientists argue HFCS is metabolically similar to table sugar (sucrose), which is also roughly 50% fructose. The key issue may be the sheer quantity of added sugars in the American diet rather than HFCS specifically.

📱 Scan Any Product Free with CheckIt AI

Frequently Asked Questions

Is HFCS worse than sugar?

Metabolically, HFCS-55 and sucrose are similar (both roughly 50% fructose). The issue is that HFCS is much cheaper, leading to its addition to far more products and higher total consumption.

What products contain HFCS?

Soda, juice drinks, bread, cereal, ketchup, barbecue sauce, salad dressing, yogurt, granola bars, and most processed sweet foods in the US contain HFCS.

Related Ingredients

HfcsMaltodextrinErythritol

Related Scanner Apps

Sugar Free Scanner AppDiabetic Food Scanner AppKeto Scanner App

⬇️ Download CheckIt AI — Free

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 High Fructose Corn Syrup (HFCS)? — CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/answers/what-is-hfcs-high-fructose-corn-syrup
MLA"What Is High Fructose Corn Syrup (HFCS)? — CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/answers/what-is-hfcs-high-fructose-corn-syrup.
HTML Embed<a href="https://getcheck.it/answers/what-is-hfcs-high-fructose-corn-syrup">What Is High Fructose Corn Syrup (HFCS)? — CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026answerswhatishfcshighfructosecornsyrup, title = {What Is High Fructose Corn Syrup (HFCS)? — CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/answers/what-is-hfcs-high-fructose-corn-syrup}, note = {Retrieved 2026-03-05} }