What Exactly Is High-Fructose Corn Syrup?
High-fructose corn syrup (HFCS) is a common sweetener made from corn starch. Enzymes are used to convert some of the glucose in regular corn syrup (which is almost 100% glucose) into fructose. The most common types, HFCS 42 and HFCS 55, contain 42% and 55% fructose, respectively. This higher fructose content makes it sweeter and often more economical than sucrose (table sugar), which is a 50/50 mix of glucose and fructose.
The Common Aliases of High-Fructose Corn Syrup
Recognizing the different names manufacturers may use for HFCS is important for consumers. These alternative names can include: glucose-fructose syrup, especially in the European Union; isoglucose; corn sugar or fructose syrup (though the FDA denied renaming HFCS as "corn sugar"); maize syrup; fruit fructose or isolated fructose; and corn sweetener or corn syrup solids.
Comparing High-Fructose Corn Syrup with Other Sweeteners
While sweeteners differ chemically, the body processes all added sugars similarly, and overconsumption is a key health concern.
| Feature | High-Fructose Corn Syrup (HFCS) | Table Sugar (Sucrose) | Regular Corn Syrup | Honey | Agave Nectar |
|---|---|---|---|---|---|
| Source | Corn starch | Sugarcane or sugar beets | Corn starch | Flower nectar gathered by bees | Agave plant |
| Composition | Varying mix of glucose and fructose | 50% glucose, 50% fructose | Almost 100% glucose | Mix of fructose, glucose, and other sugars | Very high in fructose |
| Processing | Enzymatic conversion | Refined | Enzymatic breakdown | Minimally processed | Highly processed |
| Taste | Sweeter than glucose | Standard sweet taste | Less sweet | Distinctive floral/sweet | Sweeter than sugar |
| Health Concerns | Linked to negative health effects with excessive intake | Similar concerns with excessive intake | Contributes to added sugar intake | Added sugar, some benefits in moderation | High fructose content can be negative |
Foods Where HFCS Is Often Hidden
HFCS is found in many processed foods. Check labels on items like cereals and granola bars, sauces and condiments, baked goods, yogurt and dairy, packaged meals, and juice and beverages.
How to Spot Hidden HFCS on Labels
To manage your HFCS intake:
- Read Ingredient Lists: Always check the full ingredient list.
- Learn the Aliases: Look for terms like "glucose-fructose syrup," "isoglucose," "corn sweetener," and "maize syrup". Also, watch for "fructose" or "fructose syrup".
- Identify Multiple Sweeteners: Manufacturers sometimes use several types of sugar.
- Note Ingredient Order: Ingredients higher on the list indicate a larger quantity.
- Check "Added Sugars": The Nutrition Facts panel includes a line for added sugars.
Conclusion
High-fructose corn syrup does have other names, such as "glucose-fructose syrup" and "isoglucose". Carefully reading ingredient lists and recognizing these different names can help control intake of added sugars. Limiting all added sugars is widely recommended to mitigate health risks associated with excessive consumption. Prioritizing whole, unprocessed foods is key to a healthier diet.