Product Insight: Protein
Protein by Fiber One is tracked in PlainIngredients with 2 identified ingredients and carries an overall safety rating of 3.5 out of 5 — a Mixed-Evidence tier where the regulatory picture is still evolving. On the NOVA processing scale, this product falls into Group 4 (Ultra-processed foods), a standard framework for classifying how heavily food has been industrially modified before reaching the shelf, and Its Nutri-Score grade is E, the European front-of-pack nutritional label summarizing calories, saturated fat, sodium, sugar, protein, fiber, and produce content. Within the identified ingredient list, no ingredient on this product currently carries a Caution or High-Risk flag in our database, while 1 ingredient sit at the Low-Risk or Safe end of the scale.
Our composite score weighs each ingredient's U.S. FDA regulatory status (GRAS, Approved, or Banned), European Union food-additive status under Regulation (EC) No 1333/2008, any U.S. state-level restrictions, and signals drawn from peer-reviewed toxicology literature. The per-product score is the mean of the per-ingredient ratings and should be read as a structured summary rather than a clinical verdict; edge cases such as cumulative exposure, individual allergies, and dietary interactions are not captured by a single number and are better addressed by reading the individual ingredient pages linked below.
Sources: Open Food Facts (product + ingredient list, CC0 licensed) · FDA SAFFA · EU Regulation (EC) No 1333/2008 · U.S. state food-safety statutes
Ingredient Safety Breakdown
Processing Level
Ultra-processed products are formulations made mostly or entirely from substances derived from foods and additives. They typically contain ingredients not commonly used in home cooking.
Full Ingredients List
Chicory Root Extract, _Soy Protein Isolate_, Erythritol, Palm and Palm Kernel Oil, _Whey Protein Concentrate_, _Whole Grain Oats_, _Whey Protein Isolate_, Rice Flour, Cocoa, _Soybean Oil_, Enriched _Wheat Flour_ (wheat flour, niacin, iron, thiamin mononitrate, riboflavin, folic acid), Sugar, Vegetable Glycerin, Rice Starch, Corn Syrup, _Soy Lecithin_, Canola Oil, Cocoa Processed With Alkali, Maltodextrin, Natural Flavor, _Milk Powder_, Salt, Yellow Corn Flour, Chocolate (sugar, chocolate liquor, cocoa butter, anhydrous _milkfat_, _soy lecithin_, vanilla), Fructose, Barley Malt Extract, Natural and Artificial Flavor, Stevia Leaf Extract, Baking Soda.
Data Sources
- Open Food Facts — Product data and ingredient lists
- FDA Substances Added to Food (SAFFA) Inventory — Safety scores
- EU Food Additive Regulations (EC) No 1333/2008
Product Details
- Brand
- Fiber One
- Barcode
- 0016000456822
- Nutri-Score
- Grade E
- NOVA Group
- 4 — Ultra-processed foods
- Available In
- United States
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Read our methodology — how this data is sourced, computed, and verified.
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