A bottle of extra virgin olive oil drizzled over a keto-friendly meal.

Is Olive Oil Keto? Benefits and Tips for the Keto Diet

Written by: Dr James Pendleton

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Published

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Time to read 11 min

Olive oil is a staple in many kitchens, but is olive oil keto friendly? The ketogenic diet focuses on high fat, low carb foods to help the body enter ketosis and burn fat for energy. Extra virgin olive oil is an excellent source of healthy fats, including monounsaturated and polyunsaturated fats, which support heart health and weight loss.


Unlike other fats such as butter or coconut oil, olive oil has a rich flavor and contains antioxidants that may support heart health and help manage inflammation. This article explores the health benefits of olive oil, how it fits into a high fat diet, and the best ways to use it in keto friendly cooking.

What Makes a Food Keto-Friendly?

The ketogenic diet focuses on keeping carbohydrate intake low while increasing fat consumption to shift the body into ketosis. This metabolic state helps the body burn fat for energy instead of relying on glucose. Foods high in saturated fats, monounsaturated and polyunsaturated fats, and low in carbohydrates are ideal for keto. Keto friendly oils, fatty fish, red meat, and low carb vegetables are common staples. Cooking oils like extra virgin olive oil, avocado oil, and coconut oil are preferred due to their fat content and health benefits.

A spread of keto-friendly foods.

Is Olive Oil a Good Fit for the Keto Diet?

Olive oil is a great choice for the ketogenic diet because it is pure fat with zero carbohydrates. It contains a high amount of monounsaturated and polyunsaturated fats, which support heart health and help the body burn fat efficiently.


Unlike some cooking oils that contain added sugar or unhealthy trans fats, extra virgin olive oil is a natural and nutrient-rich option. Its moderate smoke point makes it suitable for sautéing and low to medium heat cooking, but for high heat cooking, refined avocado oil may be a better option.

A bottle of extra virgin olive oil drizzled over a keto-friendly meal.

"Olive oil contains a high amount of monounsaturated and polyunsaturated fats, which support heart health and help the body burn fat efficiently.”

Is Olive Oil Keto-Friendly?

Olive oil is an excellent addition to a keto diet due to its rich flavor, healthy fats, and zero carbohydrate content. It provides essential fatty acids that support ketosis and overall health.

Nutritional Breakdown of Olive Oil

Olive oil is high in healthy fats and free of carbohydrates, making it ideal for a low carb, high fat diet. Here’s a breakdown of its nutrition per tablespoon (about 14 grams):


  • Calories: 120

  • Total Fat: 14g

    • Monounsaturated Fats: 10g

    • Polyunsaturated Fats: 2g

    • Saturated Fat: 2g

  • Carbohydrates: 0g

  • Protein: 0g

  • Cholesterol: 0mg

  • Antioxidants and Polyphenols: Present in extra virgin olive oil for heart health and inflammation reduction

Types of Olive Oil and Which Is Best for Keto

Different types of olive oil vary in processing and nutritional value. Extra virgin olive oil is the best option for a ketogenic diet because it is the least processed and retains the highest amount of antioxidants and healthy fats. Virgin olive oil is slightly more refined but still a good choice.


Refined olive oil, while still a source of healthy fats, lacks the same nutrient profile as extra virgin varieties. Choosing more olive oil of the highest quality ensures the best health benefits and keto-friendly properties.

A bowl of extra virgin olive oil with whole olive.

Health Benefits of Olive Oil on a Keto Diet

Olive oil is a powerful source of healthy fats that support overall wellness while following a ketogenic diet. Its rich content of monounsaturated and polyunsaturated fats, along with antioxidants, makes it a heart healthy choice for those looking to improve their health and weight loss efforts.

Anti-Inflammatory Properties

Chronic inflammation is linked to many health issues, including heart disease, obesity, and metabolic disorders. Extra virgin olive oil contains antioxidants like polyphenols, which help reduce inflammation.


These compounds work by lowering oxidative stress and supporting a balanced immune response. Regular intake of olive oil provides compounds that have been linked to potential anti-inflammatory benefits, making it a valuable addition to a high fat diet.

Heart Health Support

Olive oil is associated with heart health and may help maintain balanced cholesterol levels when included in a healthy diet. The monounsaturated and polyunsaturated fats in olive oil help lower LDL (bad) cholesterol while maintaining HDL (good) cholesterol. Studies suggest that incorporating olive oil into a balanced diet may support healthy cholesterol levels and overall heart function.

High Antioxidant Content for Overall Wellness

Extra virgin olive oil contains antioxidants, which may help protect cells from oxidative stress and support overall health. The high antioxidant content in olive oil makes it a beneficial addition to keto-friendly cooking, supporting overall health.

Heart-shaped bowl with olive oil.

How Olive Oil Supports Ketosis and Fat Burning

The ketogenic diet relies on healthy fats to maintain ketosis, a metabolic state where the body burns fat for energy instead of glucose. Olive oil plays a key role in this process by providing essential fatty acids that support fat metabolism.

Monounsaturated Fats and Ketosis

Monounsaturated fats are a major component of olive oil, providing a steady source of dietary fat that aligns with keto diet principles. Unlike carbohydrates, fats do not cause a spike in blood sugar levels, allowing the body to stay in a fat-burning metabolic state. Incorporating olive oil into a high fat diet can help improve energy levels, support brain function, and enhance overall metabolic health.

How Olive Oil Helps the Body Use Fat for Energy

Olive oil provides fats that can be used as an energy source in a ketogenic diet, potentially aiding in ketone production. Unlike other fats, olive oil is easily digested and absorbed, making it a quick and efficient fuel source. Using olive oil in keto-friendly meals provides a source of healthy fats that can support energy levels and satiety.

Illustration of human body under ketosis.

Olive Oil vs. Other Keto-Friendly Fats

Not all fats are created equal, and choosing the right cooking oils can make a big difference on a ketogenic diet. Olive oil, coconut oil, and avocado oil are among the most popular keto friendly oils, each offering unique benefits for cooking and overall health.

Olive Oil vs. Coconut Oil

Coconut oil is high in saturated fat, specifically medium chain triglycerides (MCTs), which are quickly converted into ketone bodies for energy, making it an excellent option for quick fuel on a ketogenic diet. However, olive oil provides long-term health benefits due to its high content of monounsaturated and polyunsaturated fats, which support heart health and help lower cholesterol levels.


While coconut oil is more stable for high heat cooking due to its saturated fat content, olive oil’s moderate smoke point and rich flavor make it a versatile option for sautéing, roasting at moderate temperatures, and salad dressings. For baking, coconut oil is often preferred because it remains solid at room temperature, making it a better butter substitute in keto-friendly recipes.

Small glass bottle of coconut oil surrounded by coconuts.

Olive Oil vs. Avocado Oil

Both olive oil and avocado oil are heart healthy options with a high content of monounsaturated fats. Avocado oil has a slightly higher smoke point, making it a good choice for high heat cooking. However, extra virgin olive oil contains more antioxidants and polyphenols, which provide additional health benefits. Both oils are perfect for a keto diet, but olive oil’s rich flavor and nutrient profile make it a standout option.

Fats to Avoid on Keto (Trans Fats and Certain Processed Oils)

While healthy fats are essential for a ketogenic diet, some fats should be avoided due to their negative impact on health. Trans fats and highly processed oils can increase inflammation, contribute to weight gain, and raise the risk of heart disease.


  • Partially Hydrogenated Oils – Found in many processed foods, these oils contain trans fats that raise bad cholesterol and increase the risk of cardiovascular issues.

  • Vegetable and Seed Oils – Oils like soybean, corn, and canola oil are high in polyunsaturated fats but can become unstable when heated, leading to oxidation and inflammation.

  • Artificial Butter Substitutes – Many margarine products contain unhealthy additives and hydrogenated fats that can interfere with the body’s ability to burn fat efficiently.

Small container of margarine.

Ways to Use Olive Oil in Your Keto Diet

Olive oil is a versatile ingredient that enhances both the flavor and nutrition of keto-friendly meals. It can be used for cooking, dressings, and simple recipes that support a high fat diet.

Cooking with Olive Oil on Keto

Cooking with olive oil is a great way to incorporate healthy fats into a ketogenic diet. Using the proper cooking methods helps retain nutrients while maximizing the oil’s rich flavor and health benefits.


Best Methods for Retaining Nutrients


  • Low to Medium Heat Cooking  – Use extra virgin olive oil for sautéing vegetables or stir frying at lower temperatures to preserve its antioxidants.

  • Drizzling Over Cooked Foods  – Add olive oil to cooked meats, fatty fish, and roasted vegetables for extra flavor and healthy fats.

  • Baking at Moderate Temperatures  – Use olive oil as a butter substitute in keto-friendly baked goods like almond flour bread or fat bombs.

  • Blending into Smoothies  – Add a tablespoon of olive oil to a keto shake or smoothie for an easy way to boost fat content.

A person drizzling olive oil over a keto meal.

Adding Olive Oil to Keto-Friendly Dressings and Sauces

Olive oil is a great base for homemade dressings and sauces, adding both heart healthy fats and a rich flavor. Mixing extra virgin olive oil with vinegar, lemon juice, or herbs creates a simple keto-friendly dressing for salads and vegetables.


It also works well in creamy sauces made with avocados or mayonnaise, perfect for drizzling over proteins like chicken or salmon. Using more olive oil in everyday meals enhances both taste and nutritional value.

A glass jar of homemade olive oil dressing.

Simple Keto Recipes with Olive Oil

Olive oil can be easily added to various keto-friendly dishes for a boost of healthy fats. Here are some easy meal ideas:


Easy Ideas for Everyday Meals


  • Keto Avocado Salad – Mix diced avocados, cherry tomatoes, and cucumbers with olive oil and lemon juice.

  • Garlic Butter Steak with Olive Oil – Sear a steak in olive oil, then finish with garlic and butter.

  • Roasted Keto Vegetables – Toss Brussels sprouts or zucchini in olive oil and bake until crispy.

  • Olive Oil Fat Bombs – Blend olive oil with cream cheese and herbs, then freeze for a high-fat keto snack.

  • Eggs Cooked in Olive Oil – Fry or scramble eggs in olive oil for a heart healthy breakfast.

Choosing the Best Olive Oil for Your Keto Diet

Selecting high-quality olive oil ensures you get the best flavor and health benefits. Extra virgin olive oil is the best choice for a ketogenic diet due to its high nutrient content and purity.

Tips for Buying High-Quality Extra Virgin Olive Oil

Purchasing the right olive oil can make a difference in taste and health benefits. Look for these key factors:


  • Cold-Pressed and Unrefined – Choose oils labeled "extra virgin" to ensure minimal processing and maximum nutrients.

  • Dark Glass Bottles – Olive oil stored in dark bottles is better protected from light and oxidation.

  • Harvest Date on Label – Fresher olive oil has better flavor and more antioxidants.

  • Single-Origin or Certified Organic – High-quality olive oils often come from a single region and have fewer additives.

  • Rich, Peppery Flavor – A slightly spicy or nutty flavor indicates higher antioxidant content.

How to Store Olive Oil for Freshness

Proper storage helps maintain the quality and nutrients of olive oil. Keeping it away from heat, light, and air prevents oxidation and preserves its health benefits. Store olive oil in a cool, dark place, such as a pantry or cupboard, to extend its shelf life.


Using an airtight container and keeping the bottle tightly sealed prevents exposure to oxygen, which can cause the oil to go rancid. Avoid placing olive oil near the stove or in direct sunlight, as heat and light can break down its nutrients. Refrigeration is unnecessary, but if stored in a warm environment, keeping it in a cooler spot can help maintain freshness.

A grocery shelf displaying different types of olive oil.

Add Olive Oil to Your Daily Routine to Support Your Keto Diet

Olive oil is a fantastic keto-friendly fat that supports heart health, aids fat metabolism, and enhances the flavor of keto meals. Its high content of monounsaturated and polyunsaturated fats makes it an excellent addition to a high fat diet while helping the body stay in ketosis.


Using more olive oil in cooking, dressings, and simple keto recipes provides essential nutrients and antioxidants, promoting overall wellness. Whether drizzling it over vegetables, using it for stir frying, or blending it into sauces, olive oil is a versatile and heart healthy choice for anyone following a ketogenic diet.

Frequently Asked Questions

Can you use olive oil every day on a keto diet?

Yes, olive oil is keto friendly and can be used daily to add healthy fats and flavor to meals.

Is extra virgin olive oil better for keto?

Yes, extra virgin olive oil is the best choice for keto because it retains the most nutrients and antioxidants.

Does olive oil help with ketosis?

Yes, olive oil provides healthy fats that support ketosis by helping the body burn fat for energy.

Can olive oil be used for high-heat cooking on keto?

Yes, olive oil has a high smoke point and is great for stir frying, roasting, and sautéing.

How much olive oil should I eat on a keto diet?

A typical serving is 1-2 tablespoons per meal, but the amount depends on individual fat intake goals.


REFERENCES

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  4. Paoli, A., Rubini, A., Volek, J. S., & Grimaldi, K. A. (2013). Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate (ketogenic) diets. European journal of clinical nutrition, 67(8), 789–796. https://doi.org/10.1038/ejcn.2013.116

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Medically Reviewed By

Dr. James Pendleton

Dr. James Pendleton is a primary care physician specializing in a naturopathic approach to family medicine. He has nurtured a family practice in Seattle, directed a VIP medical center in Abu Dhabi, published several books and scientific articles, and designed innovative nutritional supplements for manufacturers worldwide.