Kellogg's
Is Kellogg's Frosted Flakes Cereal Marshmallow healthy?
Frosted Flakes Cereal Marshmallow
Longevity Score
22/100
Food Integrity Score
52/100
Consider Avoiding
At least one major score is weak enough that many people will want a clearer alternative for regular use.
Quick answer
Consider Avoiding
Kellogg's frosted flakes cereal marshmallow is rated consider avoiding overall, with a Longevity Score of 22 out of 100 and a Food Integrity Score of 52 out of 100. Refined corn cereal with high added sugar and low fiber; limited whole-food content for a Longevity-focused pattern. Strengths include fortified with vitamins and iron, low saturated fat, and low cholesterol, while main considerations include high added sugar (sugar, corn syrup, dextrose), refined corn base with very low fiber, and ultra-processed ingredient list.
Longevity Score 22/100Food Integrity Score 52/100
What helped the score?
- Fortified with vitamins and iron
- Low saturated fat
- Low cholesterol
What held the score back?
- High added sugar (sugar, corn syrup, dextrose)
- Refined corn base with very low fiber
- Ultra-processed ingredient list
Ingredients
Ingredient list
Ingredients: Milled corn, sugar, contains 2% or less of malt flavor, corn syrup, modified corn starch, dextrose, salt, gelatin, natural flavor.Vitamins and Minerals: Iron (ferric phosphate), niacinamide, vitamin B6 (pyridoxine hydrochloride), vitamin B2 (riboflavin), vitamin B1 (thiamin hydrochloride), folic acid, vitamin D3, vitamin B12.
Formulations can vary — check the package label for the final word.
Key nutrition
Per serving: 39 g (1 Cup)
- Calories1447% DV
- Protein1.5g3% DV
- Total Carbs34.9g13% DV
- Fiber0.8g3% DV
- Total Fat0.1g0% DV
- Saturated Fat0g0% DV
Source data, GTIN, and Healthy Food Guide analysis details
Product facts
- Product
- Kellogg's Frosted Flakes Cereal Marshmallow
- Brand
- Kellogg's
- Category
- Breakfast & Cereal (source: Processed Cereal Products)
- GTIN / UPC
00038000199226- Serving size
- 39 g (1 Cup)
- 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
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-outsMetabolic Health
For someone prioritizing Low-Spike Stability, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Higher net carbs (34.1g)
This product has 3 additional signals for this goal.
Heart-Healthy Eating
SupportiveMetabolic Health
For someone prioritizing Heart-Healthy Eating, the available data suggest this product may align in helpful ways.
A supportive signal: Low saturated fat (0g)
GLP-1 Eating Support
Watch-outsMetabolic Health
For someone prioritizing GLP-1 Eating Support, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Lower protein (1.5g)
This product has 1 additional signal for this goal.
Low Sugar Lifestyle
Watch-outsMetabolic Health
For someone prioritizing Low Sugar Lifestyle, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Higher sugar (16.6g)
This product has 2 additional signals for this goal.
Appetite & Portion Awareness
MixedMetabolic Health
For someone prioritizing Appetite & Portion Awareness, the same nutrition and ingredient data show both supportive signals and tradeoffs.
A tradeoff: Higher sugar (16.6g)
This product has 1 additional signal for this goal.
Athletic Fueling
Watch-outsAthletic Performance
For someone prioritizing Athletic Fueling, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Carbohydrate is almost entirely sugar (16.6g of 34.9g carbs)
Workout Recovery
Watch-outsAthletic Performance
For someone prioritizing Workout Recovery, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Lower protein (1.5g)
Strength & Protein Focus
Watch-outsAthletic Performance
For someone prioritizing Strength & Protein Focus, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Lower protein (1.5g)
Vegetarian
Watch-outsDietary Patterns
For someone prioritizing Vegetarian, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Meat/seafood ingredients (Mentions "gelatin". See ingredients for details.)
Vegan
Watch-outsDietary Patterns
For someone prioritizing Vegan, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Animal-derived ingredients (Mentions "gelatin". See ingredients for details.)
Plant-Based
Watch-outsDietary Patterns
For someone prioritizing Plant-Based, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Animal-derived ingredients (Mentions "gelatin". See ingredients for details.)
Low-Carb Lifestyle
Watch-outsDietary Patterns
For someone prioritizing Low-Carb Lifestyle, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Higher net carbs (34.1g)
This product has 1 additional signal for this goal.
Keto-Style Eating
Watch-outsDietary Patterns
For someone prioritizing Keto-Style Eating, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Net carbs above typical keto snack range (34.1g)
This product has 1 additional signal for this goal.
Low Gluten Eating
Watch-outsDietary 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.)
Minimally Processed Eating
Watch-outsDietary Patterns
For someone prioritizing Minimally Processed Eating, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Sweetener signals (Sugar, Corn syrup)
Whole-Food Focused Eating
Watch-outsDietary Patterns
For someone prioritizing Whole-Food Focused Eating, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Sweetener signals (Sugar, Corn syrup)
Reduce Ultra-Processed Foods
Watch-outsDietary Patterns
For someone prioritizing Reduce Ultra-Processed Foods, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Sweetener signals (Sugar, Corn syrup)
Paleo-Style Eating
Watch-outsDietary Patterns
For someone prioritizing Paleo-Style Eating, the analysis identifies considerations that may matter more than the general product score alone.
A consideration: Grain/legume ingredients (Mentions "corn". See ingredients for details.)
This product has 1 additional signal for this goal.
Pescatarian
NeutralDietary Patterns
For someone prioritizing Pescatarian, the available Longevity and Food Integrity data do not show a strong matching signal for this product.
Mediterranean-Style Eating
NeutralDietary Patterns
For someone prioritizing Mediterranean-Style Eating, the available Longevity and Food Integrity data do not show a strong matching signal for this product.
Healthy Fat Focus
NeutralDietary Patterns
For someone prioritizing Healthy Fat Focus, the available Longevity and Food Integrity data do not show a strong matching signal for this product.
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.
Common questions about this product
Is Kellogg's Frosted Flakes Cereal Marshmallow highly processed?
Food Integrity lists processing level as Highly 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?
Kellogg's Frosted Flakes Cereal Marshmallow shows about 0.78g of fiber per labeled serving in the Longevity nutrition facts.
Does it contain added sugar?
Kellogg's Frosted Flakes Cereal Marshmallow: 16g added sugar per serving; sweetener signals include Sugar, Corn syrup. Confirm the current package Nutrition Facts and ingredient list.
What helped the Longevity Score?
Key positives called out in the analysis include: Fortified with vitamins and iron; Low saturated fat; Low cholesterol.
What prevented a perfect Longevity Score?
Key concerns noted include: High added sugar (sugar, corn syrup, dextrose); Refined corn base with very low fiber; Ultra-processed ingredient list.
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.
Source data and Healthy Food Guide analysis
- Public label databases (including USDA FoodData Central and Open Food Facts) — Possible sources for package ingredients and nutrition.
- Healthy Food Guide analysis (Longevity and Food Integrity) — Independent Longevity and Food Integrity scorecards.
- How the Longevity Score is calculated
- How the Food Integrity Score is calculated
- Scoring models: KarbCoach Longevity and Food Integrity.
- Independent analysis. No manufacturer affiliation.
- 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.
See how this item lines up with your goals
Healthy Food Guide covers this product in detail. In KarbCoach, your goals shape what matters most for your meals.
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