Healthy Food Guideby KarbCoach

Healthy Food Guide by KarbCoach

Corn Flakes Kellogg's Cereal: Food Integrity analysis

Updated 2026-10-17 · Corn Flakes

Quick answer

High integrity

Corn Flakes kellogg's cereal received a Food Integrity Score of 84 out of 100 (high integrity). This reflects lightly processed and moderate additive load. This is a short, recognizable list built mostly around milled corn, with sugar, malt flavor, and fortification vitamins as the main additions. It reads as a lightly to moderately processed, enriched cereal, so it fits better as an occasional breakfast than an everyday staple. The sugar and malt flavor are the main reasons for the moderate score, while the vitamin list is expected for fortified cereal. Main considerations include sugar adds sweetness to a grain base, malt flavor is a vague flavor system, and multiple synthetic vitamins signal fortification. Simpler options: Choose plain rolled oats or unsweetened corn cereal and add fruit for sweetness; look for cereals with fewer added sugars and flavor systems.

Food Integrity Score 84/100

What stood out on the label?

  • Lightly processed
  • Moderate additive load
  • Transparency: High

What to watch?

  • Sugar adds sweetness to a grain base
  • Malt flavor is a vague flavor system
  • Multiple synthetic vitamins signal fortification

Simpler options to consider

  • Choose plain rolled oats or unsweetened corn cereal and add fruit for sweetness
  • Look for cereals with fewer added sugars and flavor systems

You are viewing ingredients and processing. Switch to Longevity for nutrition and longer-term eating pattern fit.

Source data, GTIN, and Healthy Food Guide analysis details

Product facts

Product
Corn Flakes Kellogg's Cereal
Category
Breakfast & Cereal (source: Cereal)
GTIN / UPC
00038000269752
Serving size
42 g
Source data — ingredients
Ingredient list from product label data (see Sources)
Healthy Food Guide analysis
Independent Longevity and Food Integrity scorecards. See methodology under Sources.
Data last verified

Food Integrity results

Kellogg's Cereal

Corn Flakes

High integrity

Warning Signs

Sugar and malt flavor sit near the top of the list, adding sweetness and a flavor system to an otherwise simple grain base.

Consider This

Vitamin and mineral fortification, plus malt flavor, is typical of factory-formulated breakfast cereals rather than home-cooked grain.

Good Substitutes

Plain rolled oats or unsweetened puffed corn with a little cinnamon and fruit gives a similar crunch without added sugar or flavor systems.

Overall Assessment

High integrity

This is a short, recognizable list built mostly around milled corn, with sugar, malt flavor, and fortification vitamins as the main additions. It reads as a lightly to moderately processed, enriched cereal, so it fits better as an occasional breakfast than an everyday staple. The sugar and malt flavor are the main reasons for the moderate score, while the vitamin list is expected for fortified cereal.

Key Highlights

What stood out

  • Sugar adds sweetness to a grain base
  • Malt flavor is a vague flavor system
  • Multiple synthetic vitamins signal fortification

Family Watchlist

Ingredients some users may personally want to know about.

  • Sugar — Refined sweetener
  • Malt flavor — Vague flavor system

Highest concern ingredients

  • Malt flavor (5/10) — Vague flavor system
  • Sugar (4/10) — Refined sweetener
  • Vitamins and minerals (3/10) — Fortification blend

Better choice tips

  • Choose plain rolled oats or unsweetened corn cereal and add fruit for sweetness.
  • Look for cereals with fewer added sugars and flavor systems.

Ingredients

Ingredient list

MILLED CORN, SUGAR, MALT FLAVOR, CONTAINS 2% OR LESS OF SALT, VITAMINS AND MINERALS: IRON (FERRIC PHOSPHATE), NIACINAMIDE, VITAMIN B (PYRIDOXINE HYDROCHLORIDE), VITAMIN B (RIBOFLAVIN), VITAMIN B (THIAMIN HYDROCHLORIDE), FOLIC ACID, VITAMIN D, VITAMIN B

Formulations can vary — check the package label for the final word.

Highest-concern ingredients first. Expand an item for notes.

  1. Malt flavorConcern 5/10 — Moderate concernFlavor systemWatchlist · Additive · Vague label term

    What this is

    Flavor system

    Processing category

    Processed

    Main concern area

    Family Watchlist

    Why it matters

    Flavor systems can be broad and less specific than whole ingredients.

    Additional note

    Flavor system; often vague in composition.

    Family watchlist

    Flavor system, vague composition

  2. SugarConcern 4/10 — Mild concernSweetenerWatchlist

    What this is

    Sweetener

    Processing category

    Natural refined

    Main concern area

    Ingredient concern

    Why it matters

    Refined sugar is a common sweetener many users track closely.

    Additional note

    Refined sweetener adds sweetness and calories.

    Family watchlist

    Refined sweetener

  3. Vitamins and mineralsConcern 3/10 — Mild concernFortificationAdditive · Vague label term

    What this is

    Fortification

    Processing category

    Processed

    Main concern area

    Processing

    Why it matters

    Fortification is common but signals a formulated cereal.

    Additional note

    Fortification blend listed generally in this entry.

  4. Milled cornConcern 2/10 — Very low concernSimple food

    What this is

    Simple food

    Processing category

    Natural refined

    Why it matters

    Main grain base; milling is expected for cereal.

    Additional note

    Corn ground into meal; normal cereal processing.

View all 13 ingredient assessments
  1. Iron (ferric phosphate)Concern 2/10 — Very low concernMineral fortificantAdditive

    What this is

    Mineral fortificant

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Added mineral used for nutrient fortification.

    Additional note

    Synthetic mineral fortificant.

  2. NiacinamideConcern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Synthetic vitamin added in fortified cereal.

    Additional note

    Synthetic B vitamin added for fortification.

  3. Vitamin B (pyridoxine hydrochloride)Concern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Synthetic vitamin added for fortification.

    Additional note

    Synthetic vitamin B6 added.

  4. Vitamin B (riboflavin)Concern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Synthetic vitamin added for fortification.

    Additional note

    Synthetic vitamin B2 added.

  5. Vitamin B (thiamin hydrochloride)Concern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Synthetic vitamin added for fortification.

    Additional note

    Synthetic vitamin B1 added.

  6. Folic acidConcern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Synthetic vitamin added for fortification.

    Additional note

    Synthetic folate added for fortification.

  7. Vitamin DConcern 2/10 — Very low concernVitaminAdditive

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Added vitamin typical of fortified cereals.

    Additional note

    Added vitamin for fortification.

  8. Vitamin BConcern 2/10 — Very low concernVitaminAdditive · Vague label term

    What this is

    Vitamin

    Processing category

    Synthetic / man-made

    Main concern area

    Processing

    Why it matters

    Unspecified B vitamin adds some vagueness to the blend.

    Additional note

    Unspecified B vitamin in fortification blend.

  9. Contains 2% or less of saltConcern 1/10 — Very low concernSeasoning

    What this is

    Seasoning

    Processing category

    Natural refined

    Why it matters

    Minor seasoning in a small amount.

    Additional note

    Small amount of salt for flavor.

This Food Integrity score estimates how simple and recognizable an ingredient profile appears. It is not a medical safety rating. Formulations can vary by region, size, and packaging. Check the package label for ingredients, allergens, and nutrition. Not medical advice — do not use this site or the KarbCoach mobile app for allergy or health decisions.

How this product may fit different goals

The same food can look different depending on what matters most to you. Here is a general preview of how this product may align with several common goals.

  • Low-Spike Stability

    Watch-outs

    Metabolic Health

    For someone prioritizing Low-Spike Stability, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Sweetener/sugar on watchlist (see Food Integrity)

    See more for this goal

  • Low Sugar Lifestyle

    Watch-outs

    Metabolic Health

    For someone prioritizing Low Sugar Lifestyle, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Sweetener/sugar on watchlist (see Food Integrity)

    See more for this goal

  • Low-Carb Lifestyle

    Watch-outs

    Dietary Patterns

    For someone prioritizing Low-Carb Lifestyle, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Carb-dense ingredients (Mentions "sugar". See ingredients for details.)

    See more for this goal

  • Keto-Style Eating

    Watch-outs

    Dietary Patterns

    For someone prioritizing Keto-Style Eating, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Carb-dense ingredients (Mentions "sugar". See ingredients for details.)

    See more for this goal

  • Low Gluten Eating

    Watch-outs

    Dietary Patterns

    For someone prioritizing Low Gluten Eating, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Gluten-related ingredients (Mentions "malt". See ingredients for details.)

    See more for this goal

  • Minimally Processed Eating

    Watch-outs

    Dietary Patterns

    For someone prioritizing Minimally Processed Eating, the analysis identifies considerations that may matter more than the general product score alone.

    A consideration: Family watchlist items (Sugar)

    See more for this goal

See how this product fits your goals

Choose what matters most to you and explore a more detailed interpretation of this product's nutrition, ingredients, and tradeoffs.

Personalize this analysis

Understanding the Food Integrity analysis

What the Food Integrity analysis evaluates

The Food Integrity analysis focuses on how a packaged food is formulated and made. It examines processing level, ingredient quality, additives, oils, sweeteners, purity cues, and how clearly a label communicates what is in the product. The Food Integrity Score summarizes that formulation and transparency picture on a 0–100 scale. It is not a full nutrient report and it is not a personalized meal plan.

Why processing, ingredients, and transparency matter

Processing level and ingredient quality shape what you are actually eating beyond calories on the label. Additives, industrial oils, and intense sweeteners can change how clean or heavily engineered a product feels, even when the front of pack looks wholesome. Purity and transparency matter because incomplete or marketing-heavy labeling can hide tradeoffs that only show up when the full ingredient list is reviewed carefully.

Who may prioritize Food Integrity

Some people care mainly about Food Integrity because their dietary goals center on formulation rather than macros alone. Examples include checking vegetarian or vegan suitability, preferring simpler ingredient sources, avoiding certain additives or sweeteners, watching oil choices, or preferring less processed options. For those priorities, the Food Integrity Score can be the more practical first read.

How Food Integrity differs from Longevity

Food Integrity is the focused analysis of processing, ingredients, additives, purity, and transparency. Longevity is the broader analysis of nutritional composition, metabolic and dietary characteristics, processing, and ingredient quality together. Favorable nutrition values do not necessarily mean strong Food Integrity: a product can look balanced on macros yet still rely on heavy processing or additives that the Food Integrity analysis flags in more detail.

Why the two analyses overlap—and why to review Longevity too

The analyses overlap intentionally. Food Integrity–related characteristics contribute to Longevity, and Longevity still benefits from the same ingredient-quality lens. They are not competing verdicts; they answer different questions at different depths. Reviewing the Longevity analysis can add information about nutritional composition, metabolic characteristics, and dietary balance that Food Integrity alone does not emphasize. Looking at both usually gives the most complete understanding of tradeoffs.

Common questions about this product

Is Corn Flakes Kellogg's Cereal highly processed?

Food Integrity lists processing level as Lightly processed. That reflects formulation and processing signals from the ingredient analysis — not a medical or regulatory classification.

Why are the Longevity and Food Integrity scores different?

Longevity emphasizes nutrition per serving and longer-term dietary alignment. Food Integrity emphasizes ingredients, additives, processing, and label transparency. The same product can score differently on those lenses.

How much fiber is in one serving?

Corn Flakes Kellogg's Cereal shows about 1.01g of fiber per labeled serving in the Longevity nutrition facts.

Does it contain added sugar?

Corn Flakes Kellogg's Cereal: 4g added sugar per serving; sweetener signals include Added sugar. Confirm the current package Nutrition Facts and ingredient list.

What helped the Longevity Score?

Key positives called out in the analysis include: Simple ingredient list with few components; Low saturated fat and no cholesterol; Fortified with B vitamins and iron.

What prevented a perfect Longevity Score?

Key concerns noted include: Milled corn is refined with limited fiber; Added sugar is listed as an ingredient; Low protein for a breakfast serving.

Who might evaluate this product differently?

People prioritizing different goals (for example lower carbs, higher protein, or minimally processed eating) may weigh the same breakfast & cereal differently. Use the goal preview on this page, then personalize in KarbCoach for your priorities.

Other published analyses in Breakfast & Cereal, selected from the same Healthy Food Guide catalog.

Source data and Healthy Food Guide analysis

  1. Public label databases (including USDA FoodData Central and Open Food Facts) — Possible sources for package ingredients and nutrition.
  2. Healthy Food Guide analysis (Longevity and Food Integrity) — Independent Longevity and Food Integrity scorecards.
  3. How the Longevity Score is calculated
  4. How the Food Integrity Score is calculated
  5. Scoring models: KarbCoach Longevity and Food Integrity.
  6. Independent analysis. No manufacturer affiliation.
  7. Formulations can vary by region, size, and packaging. Check the package label for ingredients, allergens, and nutrition. Not medical advice — do not use this site or the KarbCoach mobile app for allergy or health decisions. Full sources and safety details.
Label accuracy and safety information

Formulations can vary by region, size, and packaging. Check the package label for ingredients, allergens, and nutrition. Not medical advice — do not use this site or the KarbCoach mobile app for allergy or health decisions.

Sources, citations & safety

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