Cinnamon Toast Crunch is the sweet cinnamon-sugar cereal, and the cinnamon is what people ask about.
What is on the label
I pulled the ingredient list for GENERAL MILLS, CINNAMON TOAST CRUNCH, CRISPY, SWEETENED WHOLE WHEAT & RICE CEREAL from USDA FoodData Central (branded foods) (product code 016000159020). Ingredients are listed from the most to the least by weight.
Whole grain wheat, sugar, rice flour, rice bran and/or canola oil, fructose, maltodextrin, dextrose, salt, cinnamon, trisodium phosphate, soy lecithin, color added. bht added to preserve freshness. vitamins and minerals: calcium carbonate, zinc and iron (mineral nutrients), vitamin c (sodium ascorbate), a b vitamin (niacinamide), vitamin b6 (pyridoxine hydrochloride), vitamin b2 (riboflavin), vitamin b1 (thiamin mononitrate), vitamin a (palmitate), a b vitamin (folic acid), vitamin b12, vitamin d3.
Recipes change, and flavors and package sizes can differ, so read the bag you actually have before you rely on this list.
What matters for your dog
- Sugar. Plain sugar isn’t poisonous to dogs, but it adds calories a dog doesn’t need. Sugar is the second ingredient, with fructose and dextrose after it.
- Nothing else from ASPCA’s list. I compared this label to ASPCA’s list of people foods to avoid and didn’t find onion, garlic, chives, chocolate, caffeine, xylitol, grapes, raisins or macadamia nuts.
About Cinnamon Toast Crunch
The label lists whole grain wheat, sugar, rice flour, oil, fructose, maltodextrin, dextrose, salt, cinnamon, trisodium phosphate and soy lecithin, plus added vitamins. No chocolate, xylitol, onion, garlic or dairy.
Cinnamon is listed in the small group near the end. The ASPCA people-foods page I used doesn’t mention it, and I couldn’t find vet guidance on it, so I won’t guess how much matters. What I can say is that this cereal is mostly sugar: sugar is the second ingredient, and fructose and dextrose add more.
I checked the original. Other Cinnamon Toast Crunch versions, like the bars and special flavors, have different labels.
If your dog already ate some
Write down what it was, how much, when, and your dog’s weight, and keep the package. Then call your vet, ASPCA Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661.
Don’t wait for symptoms if the snack has chocolate, xylitol, or a lot of onion or garlic in it. And don’t try to make your dog vomit with salt or salt water. Pet Poison Helpline says that can cause salt poisoning.
Questions people ask
Is cinnamon bad for dogs?
I couldn’t find guidance on it in the vet sources I use for this site, so I can’t tell you either way. A small amount in a cereal is not the main concern. The sugar is.
Can dogs eat Cinnamon Toast Crunch?
The label lists nothing from ASPCA’s foods-to-avoid list. It’s a sugary cereal and not food for a dog.
What if my dog ate a lot?
Call your vet with the amount and your dog’s weight. A lot of sugar at once can upset a dog’s stomach.
More label checks
- Can Dogs Eat Honey Nut Cheerios?Sugar is second on the label. Plain Cheerios is the simpler cereal.
- Can Dogs Eat Cheerios?Oats, corn starch, sugar and salt. Nothing on the label is from ASPCA's list.
- Can Dogs Eat Frosted Flakes?Milled corn, sugar, malt flavor and salt. Nothing from ASPCA's list.
- Can Dogs Eat Pop-Tarts?No chocolate or xylitol, but four kinds of sugar in the first six ingredients.
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Sources
- ASPCA: People Foods to Avoid Feeding Your Pets
- Pet Poison Helpline: Salt
- USDA FoodData Central (branded foods): GENERAL MILLS, CINNAMON TOAST CRUNCH, CRISPY, SWEETENED WHOLE WHEAT & RICE CEREAL (code 016000159020)
Last reviewed October 31, 2026. I’m not a vet, and this page is general information, not veterinary advice. Every dog is different. If you’re worried about your dog, call your vet.