Formulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Chewy Chocolate Peanut Bar
Whole food · Snacks
Photo: Wikipedia
A dense, chewy protein bar packed with peanuts and coated in milk chocolate, delivering a satisfying crunch and a sweet, nutty flavor. It's engineered for sustained energy, offering a substantial 24g of protein per 100g to support muscle maintenance. The texture is a firm, oat-and-nut base that provides lasting fullness.
Calorie split: 24% protein · 47% carbs · 29% fat
↓ Full nutrition💚 Why it's loved
It's the go-to fuel for hikers, athletes, and busy professionals who need a reliable, tasty calorie boost without a meal. The classic combination of chewy nougat, peanuts, and caramel under chocolate makes it feel like a treat, not just a supplement.
⚠️ Watch-outs & how to enjoy it better
The high sugar content (over 32g per 100g) can lead to a rapid blood-sugar spike and subsequent crash if eaten alone. It's also a common allergen (peanuts, soy, milk) and can be calorically dense. To counteract, pair it with a piece of fruit or a glass of water to slow absorption, and strictly mind portion size if using it as a snack rather than a meal replacement.
Key benefits
- High in protein for muscle repair and satiety
- Convenient, portable source of calories and energy
- Contains peanuts, a source of monounsaturated fats
- Provides quick energy from carbohydrates
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The Marathon bar was originally launched in the UK in 1973 and was renamed Snickers in 1990 to align with the global brand, but the name 'Marathon' persists in some markets like the Middle East.
Full nutrition (USDA data · scales with serving)
| Water | 12.9 g |
| Energy | 396 kcal |
| Energy | 1657 kj |
| Protein | 24.3 g |
| Total lipid (fat) | 13.1 g |
| Ash | 3.0 g |
| Carbohydrate, by difference | 47.2 g |
| Fiber, total dietary | 2.5 g |
| Total Sugars | 32.9 g |
| Calcium, Ca | 965 mg |
| Magnesium, Mg | 255 mg |
| Phosphorus, P | 455 mg |
| Sodium, Na | 462 mg |
| Zinc, Zn | 9.6 mg |
| Vitamin C, total ascorbic acid | 144 mg |
| Thiamin | 2.7 mg |
| Riboflavin | 3.1 mg |
| Niacin | 36.4 mg |
| Pantothenic acid | 18.2 mg |
| Vitamin B-6 | 3.6 mg |
| Folate, total | 727 ug |
| Folic acid | 727 ug |
| Folate, food | 0.00 ug |
| Folate, DFE | 1236 ug |
| Vitamin B-12 | 10.9 ug |
| Vitamin A, IU | 3637 iu |
| Vitamin E (alpha-tocopherol) | 24.6 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 4.7 g |
| Fatty acids, total trans | 0.20 g |
| Cholesterol | 4.0 mg |
Amino acid profile (per 100g)
Estimated from Formulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Energy Bar, all flavors — USDA does not publish this profile for Formulated bar.
| Tryptophan | 0.22 g |
| Threonine | 0.68 g |
| Isoleucine | 0.83 g |
| Leucine | 1.4 g |
| Lysine | 0.97 g |
| Methionine | 0.27 g |
| Cystine | 0.24 g |
| Phenylalanine | 0.98 g |
| Tyrosine | 0.74 g |
| Valine | 0.90 g |
| Arginine | 1.7 g |
| Histidine | 0.48 g |
| Alanine | 0.76 g |
| Aspartic acid | 2.2 g |
| Glutamic acid | 3.8 g |
| Glycine | 0.88 g |
| Proline | 1.1 g |
| Serine | 0.97 g |
| Hydroxyproline | 0.00 g |
FAQ
How does it differ from a regular Snickers bar?
The Marathon/Chewy Peanut bar has significantly more protein and less sugar, with a denser, chewier texture focused on sustained energy rather than a purely candy-like experience.
Is it suitable for a pre-workout snack?
Yes, its combination of fast-acting carbs and protein can be effective 30-60 minutes before moderate exercise, but the high fat and fiber content might cause discomfort for some during intense activity.
Can I eat this on a low-carb diet?
Generally not. With over 47g of carbs per 100g, it is not compatible with strict low-carb or ketogenic dietary patterns.
Nutrient density (calculated · NRF9.3)
Nutrient Rich Foods index: beneficial nutrients (protein, fiber, vitamins, minerals) minus saturated fat, added sugar & sodium, per 100 kcal.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Weight-loss friendliness (composite index)
Energy density 3.96 kcal/g · 25% calories from protein · 2.5 g fiber · 32.9 g sugar per 100 g.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.