Ingredient database › Corn Syrup
Is Corn Syrup good or bad in dog food?
Corn Syrup is a sweetener and rates as Avoid in our analysis.
Avoid Bottom line: Corn Syrup is best avoided — it has no real place in dog food and pulls a recipe's grade down.
Added sugar — no place in dog food.
This is an ingredient we'd avoid. When it shows up — particularly near the start of the list — it pulls the whole recipe's grade down.
Built on AAFCO & FDA pet-food criteria · Last updated June 2026 · How we rate
What is Corn Syrup?
Corn Syrup is a sweetener used in dog food. On a label it may also appear as: corn syrup, high fructose corn syrup.
What to look for on the label
Ingredients are listed by weight, so the ones near the top make up most of the recipe. Corn Syrup ideally should not be in your dog's food at all. The fastest way to judge a whole product is to paste its full ingredient list into our free dog food checker, which grades it A–F and flags every ingredient like this one.
How Corn Syrup affects the WoofScore
Our grade rewards named whole proteins, vegetables, fruit and beneficial supplements, and penalises vague by-products, cheap fillers, artificial colours and controversial preservatives. Corn Syrup contributes as a avoid-tier item; read the full scoring methodology to see exactly how the grade is calculated.