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McDonald's medium French fries Calories
Medium portion of deep-fried salted fast-food French fries
CALORIES
GI
POTASSIUM
FIBER
Quick answer
1 serving (medium) of McDonald's medium French fries (117 g) has 378 calories. That works out to 323 calories per 100 g. It contains 49.8 g of carbs, 4 g of protein, 18.1 g of fat and 4.7 g of fiber. Its 3.7 mg of B3 covers 23% of the Daily Value. Its glycemic index is 75 (high), so it raises blood sugar quickly.
What is McDonald's medium French fries?
McDonald’s medium French fries are the chain’s medium serving of potatoes cut into sticks, deep-fried and salted. They have a browned, lightly crisp outside and a soft centre, with a familiar savoury potato flavour. In many places they’re served alongside burgers or sandwiches, often with ketchup or another dip; they also work as a snack to share.
Most of their energy comes from carbohydrates and fat, with some fibre from the potatoes. For a lighter meal, pair them with a salad or share the portion rather than adding another fried side.
McDonald's medium French fries Nutrition Facts
Selected: 100 g
323
KCAL / 100G
Carbs
42.6g
· 15% DV
Protein
3.4g
· 7% DV
Fat
15.5g
· 20% DV
Fiber
4g
· 14% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 53% · Protein 4% · Fat 43%
McDonald's medium French fries Vitamins & Minerals
Vitamins
B3
3.2mg · 20% DV
B6
0.3mg · 18% DV
B1
0.17mg · 14% DV
B5
0.45mg · 9% DV
Minerals
Potassium ⭐
520mg · 15% DV
Phosphorus
95mg · 14% DV
Sodium
240mg · 10% DV
Magnesium
32mg · 8% DV
How Nutritious Is McDonald's medium French fries?
Nutrient density
Low
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
Low
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
McDonald's medium French fries Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off McDonald's medium French fries
To burn the 323 calories in 100 g:
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Is McDonald's medium French fries Processed?
NOVA 3
Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does McDonald's medium French fries Contain Allergens?
No known major allergens
Which Diets Is McDonald's medium French fries Good For?
Vegan
— Not suitable
Vegetarian
✓ Suitable
Gluten-Free
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
— Not suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
McDonald's medium French fries Fat Profile
SATURATED
2.2g
MONOUNSATURATED
6.1g
POLYUNSATURATED
4g
Omega 6:3 ratio 76:1
Above the ideal 4:1 (76:1).
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Frequently Asked Questions About McDonald's medium French fries
What is in McDonald's medium French fries?
McDonald's medium French fries are made primarily from potatoes and are fried in oil, with salt added after cooking. The exact ingredients, including any processing aids or flavoring, can vary by country, so the recipe is not identical worldwide.
Are McDonald's medium French fries made from real potatoes?
Yes, McDonald's medium French fries are made from potatoes, not simply from mashed potato formed into fry shapes. They are typically prepared and frozen before reaching restaurants, then cooked there; the precise production details can vary between markets.
Do McDonald's medium French fries contain beef flavor?
It depends on the country: some McDonald's fry recipes have included beef flavoring, while others do not. McDonald's medium French fries therefore do not have one universal ingredient list; recipes and flavoring can differ across markets.
Why do McDonald's medium French fries taste different in different countries?
McDonald's medium French fries can taste different across countries because potato varieties, frying oils, seasoning, and recipes may differ by market. Local sourcing and preparation also affect the final flavor, so a visitor may notice a change even at the same restaurant chain.
How are McDonald's medium French fries cooked in the restaurant?
McDonald's medium French fries are generally delivered frozen and fried at the restaurant before serving. They are salted after cooking in many locations. The specific oil and preparation procedure depend on the country and local restaurant practices.
Can I order McDonald's medium French fries without salt?
Yes, you can usually request McDonald's medium French fries without salt when ordering. A fresh batch may need to be prepared separately, so it can take longer. Availability and the process for handling special requests can differ between restaurants.
How can I reheat McDonald's medium French fries and keep them crispy?
Reheat McDonald's medium French fries in a single layer in an air fryer or hot pan for a crispier result than a microwave usually gives. Check them after a few minutes and stop once they're hot; adding extra oil is usually unnecessary.
How long do leftover McDonald's medium French fries last in the fridge?
Refrigerate leftover McDonald's medium French fries within two hours, in a covered container, and aim to eat them the next day for the best quality. Refrigeration will not keep them crisp; reheat them in a pan or air fryer before serving.
Are McDonald's medium French fries bad for people with diabetes?
People with diabetes can eat McDonald's medium French fries, but their carbohydrate content can raise blood sugar. Portion size and the rest of the meal matter; if you need advice tailored to your glucose targets or medication, ask your clinician or dietitian.
Do McDonald's medium French fries cause weight gain?
McDonald's medium French fries do not cause weight gain on their own, but eating them often can make it easier to take in more energy than you use. Their fried, salty fast-food format makes them better as an occasional side than an everyday staple.
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Nutrition data compiled from USDA FoodData Central and scientific sources.