Fats and oils
Unsalted butter
Unsalted butter packs 717 kcal into 100 g (3.5 oz), so a typical 10 g (0.4 oz) serving already adds up to about 72 kcal.
Estimated satietyHow it is calculated
Estimated satiety: 1 out of 5
| Starting point | +1 |
|---|---|
| Very high energy density: 717 kcal/100 g | −2 |
| Protein: 0.1 g/100 kcal | 0 |
| Fiber: 0.0 g/100 kcal | 0 |
| Solid food with 16.2 g of water, under 70 | 0 |
| Sum | −1 |
| Raised to the minimum of 1 | 1 |
Our own estimate from the values per 100 g: useful for comparing foods with each other, not a measurement in people. Holt index (1995): this food was not measured.
- Prepared by
- Alex Gonzalez
- Last updated
- Next review
- Sources
- 1 primary
- Data
- USDA FDC 173430
No clinical review. No advertising from drug companies and no affiliate links.How we work
Nutrition facts
- Calories
- 72 kcal per serving
- 717 kcal per 100 g (3.5 oz)
- Protein
- 0.1 g per serving
- 0.9 g per 100 g (3.5 oz)
- Carbohydrates
- 0 g per serving
- 0.1 g per 100 g (3.5 oz)
- of which sugars
- 0 g per serving
- 0.1 g per 100 g (3.5 oz)
- Fiber
- 0 g per serving
- 0 g per 100 g (3.5 oz)
- Fat
- 8.1 g per serving
- 81.1 g per 100 g (3.5 oz)
- of which saturated
- 5.1 g per serving
- 50.5 g per 100 g (3.5 oz)
- Water
- 1.6 g per serving
- 16.2 g per 100 g (3.5 oz)
Source: USDA FoodData Central: Butter, without salt (FDC ID 173430), accessed September 23, 2026.
A typical 10 g (0.4 oz) serving provides about 72 kcal, 0.1 g of protein, and 0 g of fiber.
Satiety
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.
What to keep in mind on a GLP-1 medication
Frequently asked questions about unsalted butter
How many grams of protein are in a 10 g (0.4 oz) serving of unsalted butter?
100 g (3.5 oz) of unsalted butter has 0.9 g of protein. A typical 10 g (0.4 oz) serving has about 0.1 g of protein. That is 0.1 g of protein per 100 kcal.
How many kcal are in a 10 g (0.4 oz) serving of unsalted butter?
100 g (3.5 oz) of unsalted butter has 717 kcal. A typical 10 g (0.4 oz) serving has about 72 kcal. That is a very high energy density.
Does unsalted butter keep you full?
Barely filling for the calories it provides: our estimated satiety score is 1 out of 5. Calculation: 1 (base) − 2 (very high energy density: 717 kcal/100 g) + 0 (protein: 0.1 g/100 kcal) + 0 (fiber: 0.0 g/100 kcal) + 0 (solid food with 16.2 g of water, under 70) = −1; raised to the minimum of 1. It is an estimate based on its composition, not a measurement in people.
How does unsalted butter fit into eating on Ozempic, Wegovy, Mounjaro, or Zepbound?
Based on our tags, this is what matters about unsalted butter on a GLP-1 medication. “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. These are general guidelines, not medical advice: everyone tolerates foods differently.
What is a typical serving of unsalted butter?
We use 10 g (0.4 oz) as a typical serving. That amount provides about 72 kcal, 0.1 g of protein, and 0 g of fiber. It is a reference for calculations, not a recommendation of how much to eat.
Compare with…
Similar foods
Sources
Sources for the data on this page, with the access date.
- U.S. Department of Agriculture, Agricultural Research Service.USDA FoodData Central: Butter, without salt (FDC ID 173430).accessed .