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Ultra-processed foods and sweets

French fries

French fries pack 312 kcal into 100 g (3.5 oz), so a typical 100 g (3.5 oz) serving already adds up to about 312 kcal.

Last reviewed: By USDA description: French fries

  • 312 kcalCalories per 100 g
  • 3.4 gProtein per 100 g
  • 3.8 gFiber per 100 g
  • Estimated satiety: 1 out of 5

Nutrition facts

A typical 100 g (3.5 oz) serving provides about 312 kcal, 3.4 g of protein, and 3.8 g of fiber.

Values for french fries per 100 g (3.5 oz) and per typical serving of 100 g (3.5 oz).
NutrientPer 100 g (3.5 oz)Per serving (100 g (3.5 oz))
Calories312 kcal312 kcal
Protein3.4 g3.4 g
Carbohydrates41.4 g41.4 g
of which sugars0.3 g0.3 g
Fiber3.8 g3.8 g
Fat14.7 g14.7 g
of which saturated2.3 g2.3 g
Water38.6 g38.6 g

The typical serving is a common amount used for the math, not a recommendation. Ounces and cups are rounded US equivalents; the values come from the database entry cited in the sources.

Satiety

High energy density.

The 1 to 5 score is our own estimate: it starts at 1 point, adds points for low energy density, for protein and fiber per 100 kcal, and for the water in solid foods, and subtracts points for drinks with calories. It is useful for comparing foods with each other; it is not a measurement in people.

This food was measured in people: in the satiety index by Holt and colleagues (1995), which compared 240 kcal servings of 38 foods over two hours, it scored 116 versus 100 for white bread. In other words, it was more filling than the same calories of white bread. Source: Holt SH, Miller JC, Petocz P, Farmakalidis E. A satiety index of common foods. Eur J Clin Nutr. 1995;49(9):675-90.

What to keep in mind on a GLP-1 medication

High in fiber
It has at least 3 g of fiber per 100 g. Fiber adds bulk and slows digestion, which contributes to fullness, and it helps keep you regular; constipation is a common side effect of GLP-1 medications. It is usually easier to tolerate when you increase it gradually and drink enough water.
High energy density
It has more than 300 kcal per 100 g: a lot of energy in a small volume, so it is less filling per calorie. That does not make it a bad food; when your appetite is very low, a small serving can help you meet your needs.
May worsen nausea
It is a fatty or fried food. Fatty meals are digested more slowly and often make nausea and heaviness worse, especially in the weeks when your body is adjusting to a GLP-1 medication. This is an editorial judgment, not a ban.

Frequently asked questions about French fries

How many grams of protein are in a 100 g (3.5 oz) serving of French fries?

100 g (3.5 oz) of French fries has 3.4 g of protein. A typical 100 g (3.5 oz) serving has about 3.4 g of protein. That is 1.1 g of protein per 100 kcal.

How many kcal are in a 100 g (3.5 oz) serving of French fries?

100 g (3.5 oz) of French fries has 312 kcal. A typical 100 g (3.5 oz) serving has about 312 kcal. That is a high energy density.

How much fiber is in a 100 g (3.5 oz) serving of French fries?

100 g (3.5 oz) of French fries has 3.8 g of fiber. A typical 100 g (3.5 oz) serving has about 3.8 g of fiber. They carry our “High in fiber” tag.

Do French fries keep you full?

Barely filling for the calories they provide: our estimated satiety score is 1 out of 5. It is based on: high energy density. They were also measured in people: in the Holt satiety index (1995), with 240 kcal servings, they scored 116 versus 100 for white bread.

What should I know about French fries if I take Ozempic, Wegovy, Mounjaro, or Zepbound and feel nauseous?

Based on our tags, this is what matters about French fries on a GLP-1 medication. “High in fiber”: a good amount of fiber, which helps keep you regular; it is easier to tolerate when you increase it gradually and drink enough water. “High energy density”: a lot of energy in a small volume; when your appetite is very low, a small serving can help you meet your needs. “May worsen nausea”: a fatty or fried food; fatty meals are digested more slowly and can make nausea and heaviness worse. These are general guidelines, not medical advice: everyone tolerates foods differently.

What is a typical serving of French fries?

We use 100 g (3.5 oz) as a typical serving. That amount provides about 312 kcal, 3.4 g of protein, and 3.8 g of fiber. It is a reference for calculations, not a recommendation of how much to eat.

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Sources

Sources for the data on this page, with the access date.

  1. USDA FoodData Central: Fast foods, potato, french fried in vegetable oil (FDC ID 170698). U.S. Department of Agriculture, Agricultural Research Service. accessed .
  2. Holt SH, Miller JC, Petocz P, Farmakalidis E. A satiety index of common foods. Eur J Clin Nutr. 1995;49(9):675-90. European Journal of Clinical Nutrition (PubMed). accessed .