Potato, french fries, fast food
Common food
Photo: Wikipedia
Golden, crispy on the outside, and fluffy on the inside, fast-food french fries are the quintessential salty, savory snack. They are a high-carbohydrate, moderate-fat food, delivering a significant calorie load from refined potato starch and frying oil.
Calorie split: 4% protein · 53% carbs · 42% fat
↓ Full nutrition💚 Why it's loved
People adore the addictive contrast of textures—the shattering crunch giving way to a steaming, soft interior—and the deep, savory flavor from salt and the Maillard reaction. Their universal appeal lies in their simplicity and role as the perfect companion to burgers, sandwiches, and dips.
⚠️ Watch-outs & how to enjoy it better
The high glycemic index can cause rapid blood sugar spikes, and the frying process adds significant calories and potentially inflammatory fats. To counteract this, pair them with a protein (like a burger patty) or healthy fat (like avocado) to slow digestion, practice strict portion control, and opt for baked or air-fried versions when possible.
Key benefits
- Quick source of energy from carbohydrates
- Contains some potassium and vitamin B6
- Provides dietary fiber, especially with skin-on varieties
- Comfort food that can boost mood
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The debate over who invented the french fry—Belgium or France—is so contentious that a Belgian historian once tried to settle it by claiming American soldiers in WWI misidentified the French-speaking Belgian soldiers' snack.
Full nutrition (USDA data · scales with serving)
| Water | 38.5 g |
| Energy | 312 kcal |
| Protein | 3.4 g |
| Total lipid (fat) | 14.7 g |
| Carbohydrate, by difference | 41.4 g |
| Fiber, total dietary | 3.8 g |
| Total Sugars | 0.30 g |
| Calcium, Ca | 18.0 mg |
| Iron, Fe | 0.81 mg |
| Magnesium, Mg | 35.0 mg |
| Phosphorus, P | 125 mg |
| Potassium, K | 579 mg |
| Sodium, Na | 210 mg |
| Zinc, Zn | 0.50 mg |
| Copper, Cu | 0.12 mg |
| Selenium, Se | 0.90 ug |
| Vitamin C, total ascorbic acid | 4.7 mg |
| Thiamin | 0.17 mg |
| Riboflavin | 0.04 mg |
| Niacin | 3.0 mg |
| Vitamin B-6 | 0.37 mg |
| Folate, total | 30.0 ug |
| Folic acid | 0.00 ug |
| Folate, food | 30.0 ug |
| Folate, DFE | 30.0 ug |
| Choline, total | 36.8 mg |
| Vitamin B-12 | 0.00 ug |
| Vitamin B-12, added | 0.00 ug |
| Vitamin A, RAE | 0.00 ug |
| Retinol | 0.00 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 27.0 ug |
| Vitamin E (alpha-tocopherol) | 1.7 mg |
| Vitamin E, added | 0.00 mg |
| Vitamin D (D2 + D3) | 0.00 ug |
| Vitamin K (phylloquinone) | 11.2 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 2.3 g |
| SFA 4:0 | 0.08 g |
| SFA 6:0 | 0.00 g |
| SFA 8:0 | 0.01 g |
| SFA 10:0 | 0.01 g |
| SFA 12:0 | 0.00 g |
| SFA 14:0 | 0.02 g |
| SFA 16:0 | 1.2 g |
| SFA 18:0 | 0.84 g |
| Fatty acids, total monounsaturated | 6.0 g |
| MUFA 16:1 | 0.03 g |
| MUFA 18:1 | 5.8 g |
| MUFA 20:1 | 0.11 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 5.4 g |
| PUFA 18:2 | 4.9 g |
| PUFA 18:3 | 0.44 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 |
| Cholesterol | 0.00 mg |
Amino acid profile (per 100g)
Estimated from Snacks, potato chips, made from dried potatoes, reduced fat — USDA does not publish this profile for Potato.
| Tryptophan | 0.04 g |
| Threonine | 0.24 g |
| Isoleucine | 0.25 g |
| Leucine | 0.37 g |
| Lysine | 0.35 g |
| Methionine | 0.07 g |
| Cystine | 0.07 g |
| Phenylalanine | 0.26 g |
| Tyrosine | 0.22 g |
| Valine | 0.33 g |
| Arginine | 0.27 g |
| Histidine | 0.13 g |
| Alanine | 0.20 g |
| Aspartic acid | 1.1 g |
| Glutamic acid | 0.94 g |
| Glycine | 0.19 g |
| Proline | 0.20 g |
| Serine | 0.23 g |
FAQ
Are french fries gluten-free?
Plain potatoes are gluten-free, but cross-contamination is common in fast-food fryers that also cook breaded items. Always check with the restaurant.
Why do they sometimes taste sweet?
If potatoes are stored in the cold, their starch converts to sugar. When fried, this sugar caramelizes, creating a slightly sweet taste.
What is the best potato for homemade fries?
High-starch potatoes like Russets are ideal because their low moisture content leads to a crispier exterior and fluffy interior.
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 3.12 kcal/g · 4% calories from protein · 3.8 g fiber · 0.3 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)
Potential renal acid load. Positive = acid-forming, negative = alkaline-forming.
Sodium-to-potassium ratio: 0.36 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.