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McDonald's Medium Fries Calories
World-famous fast food French fries, medium serving.
CALORIES
GI
POTASSIUM
FIBER
McDonald's Medium 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 Fries Vitamins & Minerals
Vitamins
B6
0.22mg · 13% DV
Vitamin E
1.6mg · 11% DV
B3
1.4mg · 9% DV
B1
0.09mg · 8% DV
Minerals
Potassium ⭐
579mg · 17% DV
Phosphorus
61mg · 9% DV
Sodium
189mg · 8% DV
Iron
1mg · 6% DV
McDonald's Medium Fries Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is McDonald's Medium 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 Fries Contain Allergens?
No known major allergens
Which Diets Is McDonald's Medium 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 Fries Fat Profile
SATURATED
2.3g
MONOUNSATURATED
7.1g
POLYUNSATURATED
4.1g
Omega 6:3 ratio 77.5:1
Above the ideal 4:1 (77.5:1).
Foods Similar to McDonald's Medium Fries
McDonald's Medium Fries — Frequently Asked Questions
How long do McDonald’s medium fries stay at their best?
They’re usually at their best right after serving. As they sit, steam softens the surface and the fries lose their crisp texture.
What’s the best way to reheat leftover McDonald’s medium fries?
An oven, air fryer, or hot pan usually works best for bringing back some crispness. A microwave tends to make them softer and more rubbery.
How long can leftover McDonald’s medium fries be kept in the fridge?
If stored in a sealed container, leftovers are generally best used within 1–2 days. Quality drops quickly, so they’re much better fresh.
Can McDonald’s medium fries be frozen?
They can be frozen, but the texture usually suffers after thawing and reheating. For best quality, they’re better eaten fresh.
What should you eat with McDonald’s medium fries to make the meal more balanced?
Pairing them with a protein source and something bulky like a salad can make the meal feel more balanced. That combination may also be more filling than fries on their own.
Are McDonald’s medium fries better before or after a workout?
Before training, fatty foods can feel heavy for some people, so tolerance matters. After training, fries are better treated as part of a meal that also includes protein rather than as the whole recovery meal.
Do McDonald’s medium fries cause weight gain if you eat them at night?
Eating them at night does not automatically cause weight gain; overall intake and routine matter more. That said, salty, fatty foods late in the day may feel less comfortable for some people.
Are McDonald’s medium fries a better choice than oven-baked potatoes?
Oven-baked potatoes are usually the lighter everyday option because frying adds more fat and makes the food more energy-dense. Fries are better thought of as an occasional side rather than a staple.
Why do McDonald’s medium fries go soggy so quickly?
Hot fries release steam, and that moisture gets trapped around the surface. Once the crust absorbs that moisture, the crispness fades fast.
Who should be more careful with McDonald’s medium fries?
People trying to limit ultra-processed foods, those who struggle with portion control, or anyone who feels unwell after greasy foods may want to be more cautious. They fit better as an occasional food than a daily base of the diet.
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Nutrition data compiled from USDA FoodData Central and scientific sources.