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McDonald's medium French fries Calories
World-famous fast food French fries, medium serving.
CALORIES
GI
POTASSIUM
FIBER
McDonald's medium French fries Nutrition Facts
Selected: 100 g
323
KCAL / 100G
Carbs
41.4g
· 51%
Protein
3.4g
· 4%
Fat
16.1g
· 45%
Fiber
3.8g
McDonald's medium French fries Vitamins & Minerals
Vitamins
B6
0.22mg · 13% DV
Vitamin E
1.6mg · 11% DV
B3
1.6mg · 10% DV
B5
0.5mg · 10% DV
Minerals
Potassium ⭐
480mg · 14% DV
Sodium
210mg · 9% DV
Phosphorus
54mg · 8% DV
Iron
1mg · 6% DV
McDonald's medium French fries Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is McDonald's medium French fries Processed?
NOVA 4
Ultra-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
2.3g
MONOUNSATURATED
7.2g
POLYUNSATURATED
4.1g
Omega 6:3 ratio 90:1
Above the ideal 4:1 (90:1).
Foods Similar to McDonald's medium French fries
McDonald's medium French fries — Frequently Asked Questions
How long do McDonald’s medium French fries stay at their best?
They usually taste best within the first 10–15 minutes after serving. As they sit, steam softens them and the outside loses its crispness.
What’s the best way to reheat leftover McDonald’s fries?
An oven, air fryer, or hot pan works best for bringing back some crispness. A microwave usually makes them softer and more rubbery.
Can McDonald’s fries be frozen after purchase?
Yes, but the texture is usually not as good after thawing and reheating. Reheating from cold in an air fryer or oven gives the best chance of improving them.
Why do fries feel more filling when eaten with a burger?
On their own, fries may be less satisfying than a mixed meal. Pairing them with a protein source like a burger can make the meal feel more balanced and help fullness last longer.
Are McDonald’s fries better before or after a workout?
Right before exercise, they may feel heavy for some people because they are relatively high in fat. After training, they are not an ideal recovery food by themselves, so adding a protein source makes more sense.
Can eating McDonald’s fries late at night cause discomfort?
For some people, fatty foods late in the evening can worsen indigestion, thirst, or reflux symptoms. This is more likely if eaten close to bedtime.
Are French fries really a ‘light snack’ just because they’re made from potatoes?
Not really. Frying makes them much more energy-dense than plain potatoes, so they can add up quickly even when the portion seems modest.
Does dipping fries in ketchup or mayonnaise make much difference?
Yes, sauces can noticeably increase the overall energy and sodium of the meal. Mayonnaise-based dips also make the meal heavier because they add more fat.
Who should be more careful with McDonald’s medium fries?
People trying to limit salty, fatty, or ultra-processed foods may want to be more cautious. They may also be less comfortable for those with reflux, sensitive digestion, or difficulty with portion control.
How are McDonald’s fries different from homemade oven fries?
They are typically more processed, fattier, and designed for a very consistent taste and texture. Homemade oven fries give you more control over the oil, salt, and cooking method.
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Nutrition data compiled from USDA FoodData Central and scientific sources.