Cereals ready-to-eat, QUAKER, CAP'N CRUNCH'S PEANUT BUTTER CRUNCH

Breakfast Cereals Sweetened Ready-to-Eat Cereal

Cap'n Crunch's Peanut Butter Crunch is a sweetened ready-to-eat breakfast cereal made with corn, oat and rice flours and flavored with peanut butter. A ¾ cup (~27g) serving provides about 110–113 calories, ~21 grams of carbohydrates, ~2 grams of protein, and ~9 grams of sugars. Like many sweetened cereals, it is fortified with iron and B vitamins but is relatively low in fiber and higher in added sugars compared to whole-grain cereals.

⚡ Quick Facts

Calories
≈110–113 kcal per ¾ cup (~27 g)
Key Nutrient
Carbohydrates ~21 g
Key Nutrient
Sugars ~8.5–9 g
Key Nutrient
Protein ~1.9–2 g

💎 Key Nutrients


What Is Cap'n Crunch's Peanut Butter Crunch? Origin and Varieties

Cap'n Crunch's Peanut Butter Crunch is a flavor variant within the iconic Cap'n Crunch cereal brand, originally introduced in the United States in 1963 by the Quaker Oats Company, now a subsidiary of PepsiCo. The original Cap'n Crunch cereal was created to offer a sweet, crunchy breakfast that appealed to both children and adults, pioneered through an innovative process of coating corn and oat-based pieces with oil and flavoring to achieve a distinctive crunch. Over the decades, the Cap'n Crunch product line has expanded to include numerous seasonal and permanent flavors — from the classic sweetened corn and oat squares to variants like Crunch Berries, Oops! All Berries, and the rich, peanut butter–flavored version highlighted here. The Peanut Butter Crunch variation builds on the nostalgic sweetness of the original by integrating peanut butter flavoring into the cereal matrix, marrying the beloved crunch with a creamy, nutty profile that broadens its appeal. Producing Cap'n Crunch PB Crunch involves blending corn flour, oat flour, and rice flour with sugar, oil, and flavoring agents before cooking and shaping into the iconic clusters. This ready-to-eat cereal is fortified with essential vitamins and minerals, a common practice in breakfast cereals to help address micronutrient gaps in the diet, especially iron and B vitamins. While its formulation prioritizes taste and texture, it also reflects the broader evolution of processed cereals in the American marketplace, balancing sensory appeal with nutrient fortification. The cereal’s packaging typically highlights allergen information and nutrient claims, though formulations and fortification levels can vary slightly over time or between product sizes. Consumers often recognize Cap'n Crunch's Peanut Butter Crunch as a treat-like cereal, enjoyed with milk or as a dry snack. It also demonstrates the wider trend of breakfast cereal innovation, where traditional grain bases are reimagined with flavors like peanut butter to meet diverse consumer preferences. Despite its playful taste and nostalgia factor, it's important to understand that this variety is a sweetened cereal and not equivalent in nutritional quality to whole-grain, high-fiber cereals. This context matters especially in discussions about breakfast quality, dietary patterns, and long-term health outcomes — where the choice of cereal influences both nutrient intake and metabolic responses due to differences in fiber content, sugar levels, and processing intensity.

Nutrition Profile: A Detailed Breakdown

A serving of Cap'n Crunch's Peanut Butter Crunch (~¾ cup or ~27g) provides about 113 calories, making it a moderate-calorie breakfast choice when eaten in isolation. Its macronutrient composition is tilted toward carbohydrates (~11.5 g per serving), with smaller proportions of fat (≈2.5–3.3 g) and protein (~1.9–2 g), reflecting its position as a lightly fortified sweetened cereal rather than a high-protein or high-fiber cereal option. Carbohydrates account for a majority of the calories in this cereal, with total carbohydrates at ~11.5 g and sugars around 9 grams, indicating a relatively high sugar-to-fiber ratio. Dietary fiber is modest at ~0.7 g per serving, significantly lower than whole-grain cereals that often offer 3–5 g or more of fiber per similar serving. This disparity means Cap'n Crunch PB Crunch delivers less of the satiating and glycemic-regulating benefits associated with higher-fiber choices. The low protein content (under 2 g) means it may not significantly contribute to satiety or muscle maintenance compared to higher-protein breakfasts. Micronutrient fortification is a notable feature of Cap'n Crunch PB Crunch. Iron is provided at ~5.2 mg per serving — a substantial portion of the daily value, particularly beneficial for populations at risk of iron deficiency such as children, adolescents, and menstruating adults. The cereal also contributes folate at ~410 mcg, supporting DNA synthesis and cell division, which is particularly relevant during periods of growth. Potassium and calcium levels are relatively low compared with recommended daily intakes, reflecting the nature of grain-based cereals where these minerals are not as concentrated without fortification. Fat quality in this cereal leans toward a mix of saturated and unsaturated fats, primarily from added oils used during production. Saturated fats are modest but present, suggesting mindful consumption for individuals monitoring saturated fat intake. Compared to whole-grain, minimally processed cereals, Cap'n Crunch's Peanut Butter Crunch represents a cereal that prioritizes taste and texture, often at the expense of fiber and protein density. In comparison to similar ready-to-eat cereals, Cap'n Crunch PB Crunch’s sugar and carbohydrate content place it among sweeter options, which may be suitable occasionally but less ideal as a breakfast staple for those focused on stable blood sugar control or weight management. Pairing with milk or a source of protein like Greek yogurt can help improve the overall nutrient balance of a meal that includes this cereal. Overall, understanding these nuances helps situate Cap'n Crunch's Peanut Butter Crunch within the broader landscape of breakfast choices, highlighting both its appeal and nutritional limitations.

❤️ Health Benefits

Fortified iron contributes to daily micronutrient needs

Delivered through added iron fortification, helps support oxygen transport and energy metabolism

Evidence: moderate

⚖️ Comparisons

Vs. Whole-grain high-fiber cereal

Higher fiber (≥3–5 g) and lower sugar (<7 g) per serving versus Cap'n Crunch’s ~0.7 g fiber and ~9 g sugar

🧊 Storage Guide

🏠
Counter
n/a
❄️
Fridge
n/a
🧊
Freezer
n/a
⚠️ Signs of Spoilage:
  • smell: rancid or off odors
  • visual: discoloration, stale appearance
  • texture: loss of crispness or soggy clusters
  • when to discard: mold growth or strong off smell

👥 Special Considerations

elderly

Why: Improve nutrient balance

Recommendation: Pair with protein and fiber-rich foods

athletes

Why: Carbs provide quick energy but lack sustained fuel

Recommendation: Complement with protein and whole foods

children

Why: High sugar; choose nutrient-dense cereals more often

Recommendation: Occasional treat

pregnancy

Why: High sugar but provides fortified iron and folate

Recommendation: Occasional consumption in moderation

breastfeeding

Why: Focus on balanced meals with protein and fiber

Recommendation: Limited portions

🔬 Detailed Nutrition Profile (USDA)

Common Portions

0.75 cup (1 NLEA serving) (27.00g)
Nutrient Amount Unit
Water 2.5000 g
Energy 417.0000 kcal
Energy 1745.0000 kJ
Protein 7.1000 g
Total lipid (fat) 9.2300 g
Ash 2.5200 g
Carbohydrate, by difference 78.6500 g
Fiber, total dietary 2.7000 g
Total Sugars 33.3600 g
Calcium, Ca 9.0000 mg
Iron, Fe 18.3600 mg
Magnesium, Mg 69.0000 mg
Phosphorus, P 194.0000 mg
Potassium, K 236.0000 mg
Sodium, Na 742.0000 mg
Zinc, Zn 15.2900 mg
Copper, Cu 0.1110 mg
Selenium, Se 7.5000 µg
Vitamin C, total ascorbic acid 0.0000 mg
Thiamin 1.5300 mg
Riboflavin 1.7320 mg
Niacin 20.3600 mg
Vitamin B-6 2.0380 mg
Folate, total 1554.0000 µg
Folic acid 1535.0000 µg
Folate, food 19.0000 µg
Folate, DFE 2629.0000 µg
Choline, total 14.7000 mg
Betaine 1.8000 mg
Vitamin B-12 0.0000 µg
Vitamin B-12, added 0.0000 µg
Vitamin A, RAE 8.0000 µg
Retinol 0.0000 µg
Carotene, beta 68.0000 µg
Carotene, alpha 44.0000 µg
Cryptoxanthin, beta 0.0000 µg
Vitamin A, IU 150.0000 IU
Lycopene 0.0000 µg
Lutein + zeaxanthin 850.0000 µg
Vitamin E (alpha-tocopherol) 0.6100 mg
Vitamin E, added 0.0000 mg
Vitamin D (D2 + D3), International Units 0.0000 IU
Vitamin D (D2 + D3) 0.0000 µg
Vitamin K (phylloquinone) 0.2000 µg
Fatty acids, total saturated 3.9200 g
SFA 4:0 0.0000 g
SFA 6:0 0.0160 g
SFA 8:0 0.1990 g
SFA 10:0 0.1590 g
SFA 12:0 1.2020 g
SFA 14:0 0.4770 g
SFA 16:0 1.1740 g
SFA 18:0 0.3450 g
SFA 20:0 0.0900 g
SFA 22:0 0.1960 g
SFA 24:0 0.0630 g
Fatty acids, total monounsaturated 2.6410 g
MUFA 16:1 0.0010 g
MUFA 18:1 2.5830 g
MUFA 20:1 0.0560 g
MUFA 22:1 0.0010 g
Fatty acids, total polyunsaturated 2.1480 g
PUFA 18:2 2.1260 g
PUFA 18:3 0.0220 g
PUFA 18:4 0.0000 g
PUFA 20:4 0.0000 g
PUFA 20:5 n-3 (EPA) 0.0000 g
PUFA 22:5 n-3 (DPA) 0.0000 g
PUFA 22:6 n-3 (DHA) 0.0000 g
Fatty acids, total trans 0.0180 g
Cholesterol 0.0000 mg
Alcohol, ethyl 0.0000 g
Caffeine 0.0000 mg
Theobromine 0.0000 mg

Source: USDA FoodData Central (FDC ID: 171644)

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