 [ Symptoms ] what is high fructose corn syrup and how does it affect diabetes [ Disease ] high fructose corn syrup has a carbohydrate make up similar to that of white table sugar it is used to sweeten many prepared and commercial foods eating too many of these foods with high fructose corn syrup as well as other calorie containing ingredients increase caloric intake and will cause weight gain in some people excess weight along with other risk factors can cause type 2 diabetes to avoid eating high fructose corn syrup check the ingredients to see whether a food contains it high fructose corn syrup may be found in o regular soda o candy o frozen pops o pancake syrup o sweetened cereals o fruits flavored yogurt o pasta sauces o ketchup