Fiber One Cereal
Photo: Open Food Facts contributors (CC BY-SA)

Extruded cereals

Fiber One Cereal

555 g

Score

Good 65 out of 100 High confidence
  • Ultra-processed
  • Contains emulsifiers studied for gut effects
  • No synthetic dyes
  • Contains whole grains

Why it scores 65

Fiber One Cereal scores 65 out of 100 (Good) under GoodSwap’s published rules. What moved the score most:

  1. minus 18 points Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong
  2. minus 7.5 points Cellulose gum (carboxymethylcellulose): In a small randomized feeding trial, carboxymethylcellulose modestly increased abdominal discomfort and reduced gut microbiota diversity; in mice it promoted low-grade inflammation. Strong
  3. plus 4 points Fiber 45 g / 100 g: A good source of fiber. Strong

Every line of the math is on The Receipt below, with its evidence tier and sources.

The Receipt

Fiber One Cereal

START100

Ingredients

  • Cellulose gum (carboxymethylcellulose) minus 7.5 points
    Strong In a small randomized feeding trial, carboxymethylcellulose modestly increased abdominal discomfort and reduced gut microbiota diversity; in mice it promoted low-grade inflammation. [1][2][3][4]
  • Modified starch minus 2.5 points
    Info An additive class typical of ultra-processed foods (NOVA group 4). [5]
  • Color added (not named) minus 2.5 points
    Info 21 CFR 101.22(k) requires certified color additives (FD&C dyes and their lakes) to be declared by name. [6][5]
  • Guar gum minus 1.5 points
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [5]
subtotal−14

Processing

  • Ultra-processed (NOVA 4) minus 18 points
    Strong Classified NOVA 4: made with industrial ingredients and additives. [5]
  • 3 kinds of ultra-processing markers minus 3 points
    Emerging Industrial additive classes found: color (added), modified starch and thickener, stabilizer or gelling agent. [5]
subtotal−21

Nutrition per 100 g

  • Salt 0.9 g / 100 g minus 3 points
    Strong High in salt. [7]
  • Energy 225 kcal / 100 g minus 1 points
    Info Energy-dense for its weight. [8]
  • Fiber 45 g / 100 g plus 4 points
    Strong A good source of fiber. [8]
subtotal0

TOTAL 65Good

100 − 35 = 65


GTIN 00016000157620 · 2026-07-11

score v1.3.0 · kb 2026.10.11

High confidence

Same product, same score. Every time.

Nutrition per 100 g

Energy225 kcal
Fat2.5 g
Saturated fat0 g
Trans fat0 g
Carbohydrates82.5 g
Sugars2.5 g
Added sugars0 g
Fiber45 g
Protein7.5 g
Salt0.9 g

Serving: 0.667 cup (40 g)

Ingredients

High Moderate Not recognized Tap an ingredient for its evidence and rules.
Label text, as published

Whole Grain Wheat, Corn Bran, Modified Wheat Starch, Color Added, Guar Gum, Cellulose Gum, Salt, Baking Soda, Sucralose.Vitamins and Minerals: Calcium Carbonate, Vitamin C (sodium ascorbate), Iron and Zinc (mineral nutrients), A B Vitamin (niacinamide), Vitamin B6 (pyridoxine hydrochloride), Vitamin B1 (thiamin mononitrate), Vitamin B2 (riboflavin), A B Vitamin (folic acid), Vitamin B12.

Allergens and diets

Contains: Wheat, Gluten

  • Vegan
  • Vegetarian
  • Not gluten-free
  • Palm-oil-free

Always check the package: recipes change.

Sources

  1. Randomized Controlled-Feeding Study of Dietary Emulsifier Carboxymethylcellulose Reveals Detrimental Impacts on the Gut Microbiota and Metabolome

    Gastroenterology · March 2022 · Peer-reviewed

    “Relative to control subjects, CMC consumption modestly increased postprandial abdominal discomfort and perturbed gut microbiota composition in a way that reduced its diversity.”

    doi.org

  2. Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome

    Nature · Mar 5, 2015 · Peer-reviewed

    “carboxymethylcellulose and polysorbate-80, induced low-grade inflammation and obesity/metabolic syndrome in wild-type hosts and promoted robust colitis in mice predisposed to this disorder.”

    doi.org

  3. Food additive emulsifiers and risk of cardiovascular disease in the NutriNet-Santé cohort: prospective cohort study

    BMJ · Sep 6, 2023 · Peer-reviewed

    “This study found positive associations between risk of CVD and intake of five individual and two groups of food additive emulsifiers widely used in industrial foods.”

    doi.org

  4. Re-evaluation of celluloses E 460(i), E 460(ii), E 461, E 462, E 463, E 464, E 465, E 466, E 468 and E 469 as food additives

    European Food Safety Authority · Jan 16, 2018 · Agency assessment

    “The Panel concluded that there was no need for a numerical ADI and that there would be no safety concern at the reported uses and use levels for the unmodified and modified celluloses”

    doi.org

  5. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  6. 21 CFR 101.22(k) Declaring color additives in the ingredient list

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 19, 2016 · Law

    “Color additives not subject to certification and not otherwise required by applicable regulations in part 73 of this chapter to be declared by their respective common or usual names may be declared as “Artificial Color,” “Artificial Color Added,” or “Color Added””

    ecfr.gov

  7. Sodium reduction (fact sheet)

    World Health Organization · May 11, 2026 · Agency assessment

    “For adults, WHO recommends less than 2000 mg/day of sodium (equivalent to less than 5 g/day salt), or just under a teaspoon.”

    who.int

  8. Dietary Guidelines for Americans, 2025–2030

    U.S. Department of Health and Human Services and U.S. Department of Agriculture · January 2026 · Regulator

    “Limit foods and beverages that include artificial flavors, petroleum-based dyes, artificial preservatives, and low-calorie non-nutritive sweeteners.”

    cdn.realfood.gov

  9. Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses

    BMJ · Feb 28, 2024 · Peer-reviewed

    “Greater exposure to ultra-processed food was associated with a higher risk of adverse health outcomes, especially cardiometabolic, common mental disorder, and mortality outcomes.”

    doi.org