Is Post, Oreo O's Breakfast Cereal, 17 oz. Box Vegan?

This product may or may not be vegan as it lists 7 ingredients that could derive from animals depending on the source. We recommend contacting the manufacturer directly to confirm.

Why it's a maybe for vegan

  • calcium phosphate
  • calcium pantothenate
  • unsweetened chocolate
  • natural and artificial flavor
  • +3 more

calcium phosphate

Dietitian note

Calcium phosphate, monocalcium phosphate and tricalcium phosphate all refer to a mineral salt which can be found in both rocks and bones. Absent more information on the label, we recommend calling the manufacturer.

Note by Rhyan Geiger, RDN

+3 more in the app

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Product Image

Description

This cereal offers pronounced chocolate-cookie flavor and an initial crisp, crunchy texture that softens to a chocolatey sogginess in milk. Reviewers commonly note nostalgic appeal, pronounced sweetness, and kid-friendliness. Typical uses include eating with milk, dry snacking, or using as a crunchy topping for desserts and ice cream or milkshakes.

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Ingredients

Corn Flour, Sugar, Whole Grain Oat Flour, Canola Oil, Corn Syrup, Cocoa (Processed With Alkali), Unbleached Enriched Flour (Wheat Flour, Niacin, Reduced Iron, Thiamin Mononitrate (Vitamin B1), Riboflavin (Vitamin B2), Folic Acid), Salt, Degermed Corn Meal, Natural And Artificial Flavor, Cornstarch, Palm Oil, Titanium Dioxide (Color), Unsweetened Chocolate, High Fructose Corn Syrup, Leavening (Baking Soda, Calcium Phosphate), Soy Lecithin, Bht To Preserve Freshness, Vitamins And Minerals: Ferric Orthophosphate (Source Of Iron), Niacinamide (Vitamin B3), Zinc Oxide (Source Of Zinc), Thiamin Mononitrate (Vitamin B1), Calcium Pantothenate (A B-vitamin), Pyridoxine Hydrochloride (Vitamin B6), Folic Acid

Check Post, Oreo O's Breakfast Cereal, 17 oz. Box against your own diets in the app.

What is a Vegan diet?

A vegan diet excludes all animal-derived foods, including meat, poultry, fish, dairy, eggs, and honey. It focuses on plant-based sources such as fruits, vegetables, grains, legumes, nuts, and seeds. Many people choose veganism for ethical, environmental, or health reasons. When well-planned, it provides sufficient protein, fiber, and antioxidants, though supplementation or fortified foods may be needed for nutrients like vitamin B12, iron, and omega-3 fatty acids. Vegan diets are associated with lower risks of heart disease and improved digestion but require mindfulness to ensure balanced and complete nutrition.

Where to buy

Post, Oreo O's Breakfast Cereal, 17 oz. Box is available at 1 retailer

Walmart

About this product

Cereal · Dried, Piece

Flavor
SweetChocolatey
Texture
CrunchyDry
Commonly used for
BreakfastSnackingOn The Go