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Nutrition bar (Snickers Marathon Protein Bar)

Common food

High proteinHigh fiber
Nutrition bar (Snickers Marathon Protein Bar)

Photo: Wikipedia

The Snickers Marathon Protein Bar is a dense, chewy, and surprisingly satisfying nutrition bar designed for active individuals. It delivers a robust 25 grams of protein per 100g, wrapped in a classic candy-bar flavor profile of nougat, caramel, and peanuts. Its standout feature is the substantial fiber content, which helps balance its significant carbohydrate load.

= 100 g
415 kcal
Calories
25.0 g
Protein
50.5 g
Carbs
12.5 g
Fat
12.5 g
Fiber
28.8 g
Sugar

Calorie split: 24% protein · 49% carbs · 27% fat

↓ Full nutrition

💚 Why it's loved

People love it because it successfully bridges the gap between a functional protein supplement and an indulgent candy bar, offering a familiar, tasty treat that feels less like a compromise. Its versatility makes it a go-to for pre-work fuel, post-exercise recovery, or a desk drawer emergency snack.

⚠️ Watch-outs & how to enjoy it better

With 28.75g of sugar per 100g, it can cause a rapid blood-sugar spike, making it a poor choice for those managing diabetes or seeking low-sugar diets. It also contains common allergens like peanuts, soy, and milk. To counteract the sugar impact, pair it with a source of healthy fat or additional protein (like a handful of nuts) and consume it around physical activity when your body can utilize the sugars more efficiently.

Key benefits

🍽️ Popular dishes

🌍 Where it's eaten

💡 Did you know?

The 'Marathon' brand name for this bar is used in the UK and Europe, while it is marketed as 'Snickers Protein' in the United States.

Nutrition Facts
Amount Per 100 g
Calories415
% Daily Value*
Total Fat 12.5g16%
Saturated Fat 6.3g31%
Trans Fat —
Cholesterol 6.0mg2%
Sodium 238mg10%
Total Carbohydrate 50.5g18%
Dietary Fiber 12.5g45%
Total Sugars 28.8g
Protein 25.0g
Vitamin D 3.8mcg19%
Calcium 625mg48%
Iron 10.1mg56%
Potassium 188mg4%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Full nutrition (USDA data · scales with serving)

Water9.0 g
Energy415 kcal
Protein25.0 g
Total lipid (fat)12.5 g
Carbohydrate, by difference50.5 g
Fiber, total dietary12.5 g
Total Sugars28.8 g
Calcium, Ca625 mg
Iron, Fe10.1 mg
Magnesium, Mg175 mg
Phosphorus, P375 mg
Potassium, K188 mg
Sodium, Na238 mg
Zinc, Zn6.6 mg
Copper, Cu0.98 mg
Selenium, Se3.9 ug
Vitamin C, total ascorbic acid75.0 mg
Thiamin1.9 mg
Riboflavin2.1 mg
Niacin25.0 mg
Vitamin B-62.5 mg
Folate, total500 ug
Folic acid500 ug
Folate, food0.00 ug
Folate, DFE850 ug
Choline, total1.7 mg
Vitamin B-127.5 ug
Vitamin B-12, added7.4 ug
Vitamin A, RAE652 ug
Retinol651 ug
Carotene, beta10.0 ug
Carotene, alpha0.00 ug
Cryptoxanthin, beta0.00 ug
Lycopene0.00 ug
Lutein + zeaxanthin0.00 ug
Vitamin E (alpha-tocopherol)16.9 mg
Vitamin E, added16.0 mg
Vitamin D (D2 + D3)3.8 ug
Vitamin K (phylloquinone)10.4 ug
Alcohol, ethyl0.00 g
Caffeine3.0 mg
Theobromine28.0 mg

Fat & fatty acid profile (per 100g)

Fatty acids, total saturated6.3 g
SFA 4:00.07 g
SFA 6:00.03 g
SFA 8:00.02 g
SFA 10:00.03 g
SFA 12:00.03 g
SFA 14:00.12 g
SFA 16:01.6 g
SFA 18:01.0 g
Fatty acids, total monounsaturated2.6 g
MUFA 16:10.04 g
MUFA 18:12.6 g
MUFA 20:10.02 g
MUFA 22:10.00 g
Fatty acids, total polyunsaturated2.9 g
PUFA 18:22.7 g
PUFA 18:30.22 g
PUFA 18:40.00 g
PUFA 20:40.00 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
Cholesterol6.0 mg

FAQ

Is this bar good for building muscle?
Yes, its high protein content (25g per 100g) makes it effective for supporting muscle protein synthesis, especially when consumed after resistance training.

Can I eat this if I'm trying to lose weight?
It can fit into a weight-loss plan due to its high protein and fiber, which promote fullness. However, you must account for its calorie density (415 kcal per 100g) and sugar content within your daily limits.

What's the best time to eat it?
The optimal time is 30-60 minutes before or immediately after a workout to fuel performance or aid recovery. It also works as a substantial snack to prevent overeating at meals.

Nutrient density (calculated · NRF9.3)

100
Excellent nutrient density — rich in protein, vitamin A, vitamin C, vitamin E, iron
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)

31
Low for weight loss
Energy density 4.15 kcal/g · 24% calories from protein · 12.5 g fiber · 28.8 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.

Dietary load (calculated from USDA values)

+9.5
Acid-forming — PRAL 9.5 mEq / 100 g
Potential renal acid load. Positive = acid-forming, negative = alkaline-forming.

Sodium-to-potassium ratio: 1.27 (lower is better — aim for ≤ 1)

Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.

Related foods

Formulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Protein Performance Bar, Caramel Nut Rush415 kcalFormulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Chewy Chocolate Peanut Bar396 kcalFormulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Energy Bar, all flavors386 kcal