Healthy Food Guideby KarbCoach

Healthy Food Guide by KarbCoach

Kellogg's Special K Cereal Cinnamon Brown Sugar Crunch: Longevity analysis

Updated 2026-10-17 · Kellogg's

Quick answer

Limit Frequency

Kellogg's special k cereal cinnamon brown sugar crunch received a Longevity Score of 62 out of 100 (limit frequency). Fortified, refined-grain cereal with added sugars, artificial colors, and BHT; moderate fiber and protein offset by processing. Strengths include good protein for a cereal (about 9g per cup), some fiber from whole wheat, bran, and corn flour, and low saturated fat and modest sodium, while main considerations include multiple added sugars including brown sugar syrup and fructose, artificial/derived color additives (turmeric, annatto extracts), and refined flour and isolate-based ultra-processed build.

Longevity Score 62/100

What helped the score?

  • Good protein for a cereal (about 9g per cup)
  • Some fiber from whole wheat, bran, and corn flour
  • Low saturated fat and modest sodium

What held the score back?

  • Multiple added sugars including brown sugar syrup and fructose
  • Artificial/derived color additives (turmeric, annatto extracts)
  • Refined flour and isolate-based ultra-processed build

You are viewing the nutrition and longevity perspective. Switch to Food Integrity for ingredients and processing.

Source data, GTIN, and Healthy Food Guide analysis details

Product facts

Product
Kellogg's Special K Cereal Cinnamon Brown Sugar Crunch
Category
Breakfast & Cereal (source: Processed Cereal Products)
GTIN / UPC
00038000113277
Serving size
42 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

Kellogg's

Special K Cereal Cinnamon Brown Sugar Crunch

Limit Frequency

KarbCoach Recommendation

Limit Frequency

Fortified, refined-grain cereal with added sugars, artificial colors, and BHT; moderate fiber and protein offset by processing.

What Stands Out

Refined Grains

refined rice flour and cornstar…

Artificial Colors

turmeric extract color

Added Sweetener

sugar

Good Fiber

4.1g fiber

15% DV

Good Protein

9.5g protein

19% DV

Whole Foods

whole wheat flour, whole grain…

DV = Percent of Daily Value based on a 2,000 calorie diet

Key Positives

  • Good protein for a cereal (about 9g per cup)
  • Some fiber from whole wheat, bran, and corn flour
  • Low saturated fat and modest sodium

Key Concerns

  • Multiple added sugars including brown sugar syrup and fructose
  • Artificial/derived color additives (turmeric, annatto extracts)
  • Refined flour and isolate-based ultra-processed build
  • Contains BHT preservative

Ingredient Signals

Primary protein

soy protein isolate

Whole-food ingredients

whole wheat flourwhole grain yellow corn flourwheat bran

Processing signals

refined rice flour and cornstarchfortified vitamin and mineral blendextruded crisp format

Additives

BHT for freshnessnatural flavorsturmeric extract colorannatto extract color

Artificial colors

turmeric extract colorannatto extract color

Added sweeteners

sugarbrown sugar syrupfructose

Ingredients

Ingredient list

Whole wheat flour, sugar, soy protein isolate, rice flour, cornstarch, whole grain yellow corn flour, brown sugar syrup, wheat bran, fructose, contains 2% or less of salt, cinnamon, natural flavors, turmeric extract color, annatto extract color, BHT for freshness.Vitamins and Minerals: Calcium carbonate, magnesium oxide, reduced iron, 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.

Macronutrients

Calories

158

8% DV

Total Carbs

29.2g

11% DV

Protein

9.5g

19% DV

Saturated Fat

0.3g

2% DV

Fiber

4.1g

15% DV

Net Carbs

25.1g

9% DV

Sugar

12.1g

Total Fat

1.2g

2% DV

Sodium

231mg

10% DV

Unsaturated Fat

0.8g

DV = Percent of Daily Value based on a 2,000 calorie diet

Nutrition at a Glance

Nutrition at a Glance
NutrientAmount% Daily Value
Calories1588% DV
Total Carbs29.2g11% DV
Protein9.5g19% DV
Saturated Fat0.3g2% DV
Fiber4.1g15% DV
Net Carbs25.1g9% DV
Sugar12.1g—
Total Fat1.2g2% DV
Sodium231mg10% DV
Unsaturated Fat0.8g—

DV = Percent of Daily Value based on a 2,000 calorie diet

Amounts are per labeled serving from source data. Check the package for the final values.

Longevity scores estimate how this product’s nutrition and ingredient profile fit longer-term eating patterns. Formulations can vary — check the package label. Not medical advice. Some nutrient values may be estimated when the label is incomplete.

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

    Mixed

    Metabolic Health

    For someone prioritizing Low-Spike Stability, the same nutrition and ingredient data show both supportive signals and tradeoffs.

    A tradeoff: Higher net carbs (25.1g)

    This product has 4 additional signals for this goal.

    See more for this goal

  • Heart-Healthy Eating

    Supportive

    Metabolic Health

    For someone prioritizing Heart-Healthy Eating, the available data suggest this product may align in helpful ways.

    A supportive signal: Low saturated fat (0.3g)

    This product has 1 additional signal for this goal.

    See more for this goal

  • GLP-1 Eating Support

    Mixed

    Metabolic Health

    For someone prioritizing GLP-1 Eating Support, the same nutrition and ingredient data show both supportive signals and tradeoffs.

    A tradeoff: Higher sugar (12.1g)

    This product has 2 additional signals for this goal.

    See more for this goal

  • Low Sugar Lifestyle

    Mixed

    Metabolic Health

    For someone prioritizing Low Sugar Lifestyle, the same nutrition and ingredient data show both supportive signals and tradeoffs.

    A tradeoff: Higher sugar (12.1g)

    This product has 3 additional signals for this goal.

    See more for this goal

  • Appetite & Portion Awareness

    Mixed

    Metabolic Health

    For someone prioritizing Appetite & Portion Awareness, the same nutrition and ingredient data show both supportive signals and tradeoffs.

    A tradeoff: Higher sugar (12.1g)

    This product has 2 additional signals for this goal.

    See more for this goal

  • Athletic Fueling

    Watch-outs

    Athletic 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 (12.1g of 29.2g carbs)

    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 Longevity analysis

What the Longevity analysis evaluates

The Longevity analysis looks at how a food fits broader dietary patterns over time. It combines nutritional composition with processing and ingredient-quality considerations, including ideas that originated in Meal Power Points and Food Integrity. The Longevity Score summarizes that wider picture on a 0–100 scale. It is educational context for packaged foods, not medical advice and not a guarantee of health outcomes.

Nutrients, balance, processing, and ingredients

Nutritional composition matters: protein, fiber, carbohydrates, glucose-related characteristics, fats, sodium, and micronutrients all influence how a food may support or challenge different dietary goals. Processing level and ingredient quality still count, because formulation can change the practical meaning of an otherwise tidy nutrient panel. Longevity treats those dimensions together rather than as a single nutrient number.

Who may prioritize Longevity

People following low-carbohydrate, keto-style, high-protein, glucose-conscious, or longevity-focused eating patterns often start with the Longevity analysis. It is also useful when you want one place that connects macros and micros with how processed the food is and how the ingredient list reads. The Longevity Score is designed for that broader comparison across products.

How Longevity differs from Food Integrity

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. A strong nutritional profile may still deserve closer Food Integrity review when additives, oils, sweeteners, or processing level raise questions the nutrient panel does not answer on its own.

Why the analyses overlap—and why to review both

The overlap is intentional. Food Integrity–related characteristics contribute to Longevity, while Food Integrity remains separately useful for deeper formulation detail. The two views are meant to complement each other, not cancel each other out. Some people reasonably prioritize one analysis based on their goals; reviewing both can reveal tradeoffs that one score alone may not show.

Common questions about this product

Is Kellogg's Special K Cereal Cinnamon Brown Sugar Crunch 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 Special K Cereal Cinnamon Brown Sugar Crunch shows about 4.07g of fiber per labeled serving in the Longevity nutrition facts.

Does it contain added sugar?

Kellogg's Special K Cereal Cinnamon Brown Sugar Crunch: 12.14g total sugar per serving; sweetener signals include sugar, brown sugar syrup. Confirm the current package Nutrition Facts and ingredient list.

What helped the Longevity Score?

Key positives called out in the analysis include: Good protein for a cereal (about 9g per cup); Some fiber from whole wheat, bran, and corn flour; Low saturated fat and modest sodium.

What prevented a perfect Longevity Score?

Key concerns noted include: Multiple added sugars including brown sugar syrup and fructose; Artificial/derived color additives (turmeric, annatto extracts); Refined flour and isolate-based ultra-processed build.

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

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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