Ingredient

Corn Syrup

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What is Corn Syrup?

Corn syrup is a sweetener made from the starch of corn and composed mainly of glucose. It is produced by breaking down corn starch into smaller glucose molecules through a process called hydrolysis, using enzymes or acids.

This syrup is used in a variety of food and beverage products primarily to enhance sweetness and improve texture. It is a common ingredient in candy, baked goods, and processed foods due to its ability to prevent crystallization and retain moisture. Health-wise, corn syrup is often associated with high sugar intake, which can contribute to health issues like obesity and type 2 diabetes when consumed in large amounts.

When you see corn syrup on a label, it's important to note that it differs from high fructose corn syrup (HFCS), which has a higher fructose content and is subject to more scrutiny in health discussions.

Commonly found in: Candies, Soft Drinks, Baked Goods, Ice Creams, Sauces

What to watch

High consumption of corn syrup can contribute to increased calorie intake and potential weight gain.
Excessive sugar intake from products containing corn syrup is linked to an increased risk of developing type 2 diabetes.

FDA

Corn syrup is generally recognized as safe (GRAS) by the FDA for use in food products.

Research

Research indicates that excessive intake of sugars, including corn syrup, can lead to health issues such as obesity and metabolic disorders.

Vegan

Corn syrup is plant-derived and generally considered vegan-friendly.

Sources: GRAS Substances (SCOGS) Database · Dietary Sugars and Cardiometabolic Risk: Systematic Review and Meta-analyses of Randomized Controlled Trials of the Effects on Blood Pressure and Lipids

Scout's take

First ingredient — industrial glucose from corn refining.

The case against

High fructose content may contribute to obesity, insulin resistance, and liver issues.

from the analysis of Rold Gold Tiny Twists Original Pretzels Plastic Bag · echoed in 1 other analysis

High sugar content may lead to obesity, diabetes, and other metabolic disorders.

from the analysis of Kellog Rice Krispies Treats Homestyle Bars · echoed in 1 other analysis

High consumption may lead to increased risk of metabolic syndrome and type 2 diabetes.

from the analysis of Log Cabin Original Syrup - 24 fl oz

High consumption may lead to increased risk of metabolic disorders and obesity.

from the analysis of Jet-Puffed Mini Marshmallows Bag

May increase the risk of obesity, insulin resistance, and fatty liver disease.

from the analysis of Love's Fruit Slices

More from Scout's analyses

Third sweetener — triple sugar loading.

from the analysis of Nerds Strawberry

Highly processed liquid glucose from industrial corn refining. The third form of sugar in this product. Rapidly spikes blood sugar with zero nutritional value.

from the analysis of Lucky Charms

Corn syrup is a highly processed sweetener that adds extra sugar without nutritional benefits, which can contribute to excess calorie intake.

from the analysis of Princella Cut Sweet Potatoes