Whole food · Breakfast Cereals
Photo: Wikipedia
This is a sweet, crunchy breakfast cereal made from corn and oat flour, shaped into small, golden-brown pieces and coated in a distinct peanut butter flavoring. It delivers a satisfying, honey-nut crunch with a prominent salty-sweet peanut butter taste. Nutritionally, it's a high-carbohydrate, high-sugar cereal with minimal protein and fiber.
Calorie split: 7% protein · 74% carbs · 19% fat
↓ Full nutritionPeople love it for its iconic, intensely sweet and salty peanut butter flavor combined with a uniquely sturdy crunch that holds up in milk. It's a nostalgic comfort food for many, evoking childhood memories and serving as a quick, satisfying snack or breakfast.
The high sugar content (over 33g per 100g) can lead to blood-sugar spikes and is a concern for those managing diabetes or seeking low-sugar diets. To counteract this, practice strict portion control (e.g., a half-cup serving) and pair it with a source of protein and fat, like Greek yogurt or a handful of nuts, to slow sugar absorption. It also contains common allergens like wheat and peanuts.
The cereal's name and mascot, Captain Horatio Magellan Crunch, were inspired by the fictional sea captain from the children's book 'The Story of a Stuffed Elephant'.
| Water | 2.5 g |
| Energy | 417 kcal |
| Energy | 1745 kj |
| Protein | 7.1 g |
| Total lipid (fat) | 9.2 g |
| Ash | 2.5 g |
| Carbohydrate, by difference | 78.7 g |
| Fiber, total dietary | 2.7 g |
| Total Sugars | 33.4 g |
| Calcium, Ca | 9.0 mg |
| Iron, Fe | 18.4 mg |
| Magnesium, Mg | 69.0 mg |
| Phosphorus, P | 194 mg |
| Potassium, K | 236 mg |
| Sodium, Na | 742 mg |
| Zinc, Zn | 15.3 mg |
| Copper, Cu | 0.11 mg |
| Selenium, Se | 7.5 ug |
| Vitamin C, total ascorbic acid | 0.00 mg |
| Thiamin | 1.5 mg |
| Riboflavin | 1.7 mg |
| Niacin | 20.4 mg |
| Vitamin B-6 | 2.0 mg |
| Folate, total | 1554 ug |
| Folic acid | 1535 ug |
| Folate, food | 19.0 ug |
| Folate, DFE | 2629 ug |
| Choline, total | 14.7 mg |
| Betaine | 1.8 mg |
| Vitamin B-12 | 0.00 ug |
| Vitamin B-12, added | 0.00 ug |
| Vitamin A, RAE | 8.0 ug |
| Retinol | 0.00 ug |
| Carotene, beta | 68.0 ug |
| Carotene, alpha | 44.0 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Vitamin A, IU | 150 iu |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 850 ug |
| Vitamin E (alpha-tocopherol) | 0.61 mg |
| Vitamin E, added | 0.00 mg |
| Vitamin D (D2 + D3), International Units | 0.00 iu |
| Vitamin D (D2 + D3) | 0.00 ug |
| Vitamin K (phylloquinone) | 0.20 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
| Fatty acids, total saturated | 3.9 g |
| SFA 4:0 | 0.00 g |
| SFA 6:0 | 0.02 g |
| SFA 8:0 | 0.20 g |
| SFA 10:0 | 0.16 g |
| SFA 12:0 | 1.2 g |
| SFA 14:0 | 0.48 g |
| SFA 16:0 | 1.2 g |
| SFA 18:0 | 0.34 g |
| SFA 20:0 | 0.09 g |
| SFA 22:0 | 0.20 g |
| SFA 24:0 | 0.06 g |
| Fatty acids, total monounsaturated | 2.6 g |
| MUFA 16:1 | 0.00 g |
| MUFA 18:1 | 2.6 g |
| MUFA 20:1 | 0.06 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 2.1 g |
| PUFA 18:2 | 2.1 g |
| PUFA 18:3 | 0.02 g |
| PUFA 18:4 | 0.00 g |
| PUFA 20:4 | 0.00 g |
| PUFA 20:5 n-3 (EPA) | 0.00 g |
| PUFA 22:5 n-3 (DPA) | 0.00 g |
| PUFA 22:6 n-3 (DHA) | 0.00 g |
| Fatty acids, total trans | 0.02 g |
| Cholesterol | 0.00 mg |
Is Cap'n Crunch's Peanut Butter Crunch a healthy breakfast option?
It is considered more of a treat than a health food. While it is fortified with vitamins, its high sugar and refined carbohydrate content make it a less balanced choice for a daily breakfast compared to options like oatmeal or whole-grain cereals with lower sugar.
What gives it its distinctive peanut butter flavor?
The flavor comes from a combination of natural and artificial flavorings, along with ingredients like peanut butter, sugar, and salt, which are applied as a coating to the corn and oat cereal pieces.
Why is the cereal so crunchy?
The cereal pieces are made from a baked corn and oat flour dough that is extruded into shape and then coated with a sugar-based glaze. This process creates a very rigid structure that resists becoming soggy quickly in milk.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.
Sodium-to-potassium ratio: 3.14 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.