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Is Butter or Oil Better for Calories? The Definitive Nutritional Breakdown

4 min read

A tablespoon of butter has slightly fewer calories than a tablespoon of olive oil. However, the type of fat is a key factor in determining which is better for health and weight management.

Quick Summary

Although butter and oil have similar calorie counts per serving, the type of fat—saturated in butter versus unsaturated in oil—affects your health and weight management.

Key Points

  • Calorie Comparison: Butter is slightly lower in calories per tablespoon than olive oil, but the difference is minor.

  • Fat Type Matters: The health impact of butter vs. oil depends more on the type of fat—saturated (butter) vs. unsaturated (oil).

  • Healthy Oil Benefits: Plant-based oils like olive and avocado oil contain heart-healthy unsaturated fats that can improve cholesterol and metabolism.

  • Healthier for Weight Loss: Olive oil's composition makes it more beneficial for weight management compared to butter's higher saturated fat content.

  • Portion Control is Key: Regardless of the fat, both butter and oil are calorie-dense, and portion control is crucial for any diet.

  • Versatility in Cooking: Select oils based on their smoke point; avocado oil for high heat and olive oil for low-to-medium heat and dressings.

In This Article

Understanding the Calorie Density of Fats

All fats are calorie-dense, providing roughly 9 calories per gram. Portion control is crucial, irrespective of the fat selected.

Butter is typically lower in calories than most cooking oils on a tablespoon-for-tablespoon basis. A tablespoon of butter has approximately 100 to 102 calories, while a tablespoon of olive oil contains around 120 calories. Other common cooking oils, such as canola and coconut oil, also average around 120 calories per tablespoon. However, the fat type is the most important part of the nutritional comparison.

The Difference in Fat Composition

The fat composition, specifically the ratio of saturated to unsaturated fats, is more significant than calories. This is where oils, particularly plant-based ones like olive oil, often offer more nutritional value.

Butter: High in Saturated Fat

  • Saturated Fat: Butter is high in saturated fat, containing roughly 7 grams per tablespoon. Excessive consumption of saturated fat is linked to increased LDL (“bad”) cholesterol, which can increase the risk of heart disease.
  • Other Nutrients: Butter does contain some vitamins like A, E, and K2, but its high saturated fat content and cholesterol often outweigh these benefits when consumed frequently.
  • Flavor and Cooking: Butter has a distinct flavor and is useful for baking. However, it has a lower smoke point, making it less suitable for high-heat cooking.

Healthy Oils: High in Unsaturated Fat

  • Unsaturated Fats: Healthy oils, such as olive oil and avocado oil, are made up primarily of monounsaturated and polyunsaturated fats. These "healthy" fats can help improve cholesterol levels, reduce inflammation, and support heart health.
  • Antioxidants and Nutrients: Extra virgin olive oil is packed with antioxidants and polyphenols that offer protective effects against cellular damage. Avocado and canola oils also provide beneficial nutrients.
  • Metabolism and Satiety: Studies show that the monounsaturated fats in olive oil can boost metabolism and increase feelings of fullness, making it easier to manage overall calorie intake.

The Role of Fat in Weight Management

For weight loss, a calorie deficit is the goal, and all fats, including healthy ones, count towards the total daily caloric intake. However, the type of fat affects how the body processes and stores it. The monounsaturated fats in olive oil are metabolized more efficiently and used for energy, while butter's saturated fats are more likely to be stored as body fat.

Best Oil Choices for Weight Management:

  • Extra Virgin Olive Oil (EVOO): A core component of the heart-healthy Mediterranean diet, EVOO is a top choice for its monounsaturated fats, antioxidants, and anti-inflammatory properties. It is best for low-to-medium heat cooking, dressings, and dips.
  • Avocado Oil: With a higher smoke point than olive oil, avocado oil is great for high-heat cooking such as grilling or stir-frying. It is also rich in monounsaturated fats.
  • Canola Oil: Canola oil provides a balance of monounsaturated and polyunsaturated fats, has a high smoke point, and is an affordable option for high-heat cooking.
  • Flaxseed Oil: Best for cold applications like dressings or smoothies, flaxseed oil is rich in omega-3 fatty acids, which can help with weight management and overall health.

Oils to Use Sparingly (like butter):

  • Coconut Oil: Coconut oil contains medium-chain triglycerides (MCTs), which may have a modest metabolism-boosting effect, however it is very high in saturated fat and calorie-dense. Its weight-loss benefits are not as supported by evidence as olive oil.

Butter vs. Oil: A Side-by-Side Comparison

Feature Butter (per tbsp) Olive Oil (per tbsp) Healthy Oils (e.g., Avocado) Coconut Oil (per tbsp)
Calories ~102 kcal ~120 kcal ~124 kcal ~117 kcal
Saturated Fat High (~7.3g) Low (~2g) Low (~2g) High (~11.8g)
Unsaturated Fat Low (~3.4g) High (~11.3g) High (~10.5g) Low (~0.9g)
Fat Type Animal-based Plant-based Plant-based Plant-based
Cholesterol Contains cholesterol None None None
Vitamins/Antioxidants A, E, K2 E, K, Antioxidants E, Antioxidants Minor Vitamins
Cooking Suitability Low-to-medium heat Low-to-medium heat, dressings High heat, dressings High heat (use sparingly)

Conclusion: Prioritizing Health Over Minor Calorie Counts

Choosing heart-healthy vegetable oils over butter is better for most people concerned about calorie intake and long-term health. While butter has a minor caloric advantage per tablespoon, this is negligible compared to oils' superior nutritional profile rich in unsaturated fats. The type of fat consumed has a more significant impact on metabolic health, cholesterol levels, and the risk for cardiovascular disease.

Moderation is key for both. Use healthy oils like olive or avocado oil as the primary fats, focusing on portion control. Reserve butter for its distinct flavor and occasional use, especially in low-heat cooking or baking. Switching from butter to a healthier oil is a simple and effective dietary change that can provide meaningful long-term health benefits.

Cooking Wisely

To get the most out of cooking fats while managing calories, consider these tips:

  • Measure Carefully: Control portions using measuring spoons instead of pouring freely from the bottle.
  • Use Sprays: Use a cooking oil spray to minimize calorie addition for light sautéing or greasing pans.
  • Swap Smartly: Substitute 2/3 cup of oil for every 1 cup of butter in recipes to reduce overall fat and calorie content.
  • Focus on Healthier Cooking Methods: Choose sautéing, roasting, and grilling over deep frying to retain nutrients and limit added calories.
  • Dressings and Dips: Maximize flavor and nutrient intake by using high-quality olive oil for dressings and dips.

Following these guidelines ensures the healthiest choice for both the calorie budget and overall well-being. For more detailed information, consult resources from the American Heart Association.

For more detailed information on healthy cooking fats, consult resources from the American Heart Association.

Frequently Asked Questions

One tablespoon of butter has fewer calories (about 100-102) than one tablespoon of olive oil (about 119-120), but the difference is minor.

Oils rich in healthy unsaturated fats, like olive oil, are generally a better choice for weight loss because of their fat composition.

The caloric density of fats is very similar (around 9 kcal/gram), but oils are pure fat, while butter contains water and milk solids.

Coconut oil is high in saturated fat and contains a similar number of calories per tablespoon as other oils (about 117 kcal), making butter slightly lower in calories but still a less heart-healthy option than olive or avocado oil.

Portion size is extremely important for both butter and oil since all fats are calorie-dense.

You can, but it will affect the outcome. Oil-based cakes are often lighter and moister, while butter-based ones are denser.

Extra virgin olive oil is often considered one of the healthiest oils. Avocado oil and canola oil are also excellent choices for their healthy fat profiles.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.