High fructose corn syrup

What this is

HFCS is best understood as an added sugar rather than a non-calorie sweetener. U.S. FDA regulation recognizes it as a direct food ingredient used under good manufacturing practice, and FDA’s consumer Q&A says it is not aware of evidence that foods with HFCS 42/55 are less safe than foods with comparable amounts of sucrose or other similar nutritive sweeteners. The concern is dietary exposure: HFCS contributes free/added sugar calories, and scientific bodies recommend limiting added or free sugars because high intakes can displace nutrient-dense foods and are linked with obesity, dyslipidemia, nonalcoholic fatty liver disease, type 2 diabetes, and dental caries. EFSA could not set a safe upper level for dietary sugars and advised keeping added/free sugars as low as possible in a nutritionally adequate diet; WHO recommends free sugars below 10% of energy, with further reduction below 5% for additional benefits. The U.S. now also has a pending FDA citizen petition asking for action on refined carbohydrates, with secondary legal summaries identifying high fructose corn syrups in the petition’s refined-sweetener scope; no U.S. ban or all-food delisting has been enacted.

Safety Review

The critical endpoints experts review in safety assessments. This is not a prediction of harm.

FDA's packet position is that HFCS 42/55 is not known to be less safe than comparable sucrose or similar nutritive sweeteners. The concern is dose and dietary pattern: excess added/free sugars can displace nutrient-dense foods and are linked with obesity, dyslipidemia, fatty liver, type 2 diabetes, and dental caries, while short-term HFCS beverage trials showed lipid/lipoprotein and uric-acid increases.