Au Gratin Potatoes vs Mashed Potatoes: Calories and Nutrition Compared (2026)

Au gratin potatoes, 5.1 g, is higher in protein than mashed potatoes, 1.9 g. Mashed potatoes, 83 calories, is lower in calories than au gratin potatoes, 132 calories.

Both au gratin potatoes and mashed potatoes are popular side dishes, but they vary significantly in their nutritional profiles. This comparison will highlight the differences in calories, protein, and other nutrients.

What Is the Difference Between Au Gratin Potatoes and Mashed Potatoes?

Au gratin potatoes are a dish made from thinly sliced potatoes baked in a creamy sauce, often topped with cheese. They are known for their rich flavor and creamy texture. Mashed potatoes are made by boiling potatoes and then mashing them until smooth, often mixed with butter and milk. They are a classic comfort food with a soft, creamy consistency.

Au Gratin Potatoes vs Mashed Potatoes: Nutrition Side by Side

The following table summarizes the key nutritional differences between au gratin potatoes and mashed potatoes.

Nutrient (per 100 g)	Au gratin potatoes	Mashed potatoes
Calories	132 kcal	83 kcal
Protein	5.1 g	1.9 g
Carbs	11.3 g	17.6 g
Sugar	0.5 g	1.5 g
Fat	7.6 g	0.6 g
Fiber	1.8 g	1.5 g
Sodium	433 mg	302 mg

Which Is Better, Au Gratin Potatoes or Mashed Potatoes?

For weight loss: Mashed potatoes, 83 calories, are lower in calories compared to au gratin potatoes, 132 calories.

For muscle and protein: Au gratin potatoes, 5.1 g, provide more protein than mashed potatoes, 1.9 g.

For low-carb or low-sugar: Mashed potatoes have more carbohydrates, 17.6 g, and sugar, 1.5 g, compared to au gratin potatoes, 11.3 g carbs and 0.5 g sugar.

How to Track Au gratin potatoes and Mashed potatoes Accurately

Portions and macros can be easy to misjudge, leading to unintended calorie intake. Nutrola is an AI nutrition tracking app that identifies foods from a photo and returns calories and macros from a database of more than 1.8 million foods. It also supports barcode scanning and voice logging. Nutrola is available from EUR 2.50 per month and shows no ads on any tier.

How We Compiled These Numbers

The numbers provided are rounded reference values for educational use, not medical advice. Always consult a healthcare professional for dietary guidance. Values are per 100 g from USDA FoodData Central.

Frequently Asked Questions (FAQ)

Which has more protein?

Au gratin potatoes have 5.1 g of protein, while mashed potatoes have 1.9 g.

Which has fewer calories?

Mashed potatoes have 83 calories, whereas au gratin potatoes have 132 calories.

What is the fat content in au gratin potatoes?

Au gratin potatoes contain 7.6 g of fat per 100 g.

How much sodium is in mashed potatoes?

Mashed potatoes contain 302 mg of sodium per 100 g.

What is the sugar content in au gratin potatoes?

Au gratin potatoes have 0.5 g of sugar per 100 g.

How much fiber is in mashed potatoes?

Mashed potatoes contain 1.5 g of fiber per 100 g.

Key Takeaways

• Au gratin potatoes have 132 calories per 100 g.
• Mashed potatoes have 83 calories per 100 g.
• Au gratin potatoes contain 5.1 g of protein per 100 g.
• Mashed potatoes contain 1.9 g of protein per 100 g.
• Au gratin potatoes have 7.6 g of fat per 100 g.
• Mashed potatoes have 17.6 g of carbs per 100 g.