Olive Oil on the Keto Diet: Your Complete Guide

If you're following a keto diet, you already know that fat is your primary fuel source. But not all fats are created equal, and choosing the right fat can make the difference between a keto diet that simply works and one that genuinely improves your health.

That's where olive oil comes in.

This guide covers everything you need to know about using olive oil on keto: whether it's truly keto friendly, its exact macros, why it may be the single best oil for your ketogenic lifestyle, and how to use it every day.

Is Olive Oil Keto Friendly?

Yes, 100%. Extra virgin olive oil is one of the most keto-compatible foods in existence.

Here's why in one simple fact: olive oil contains zero carbohydrates, zero protein, and zero sugar. It is pure fat. And on a diet where fat is your primary macronutrient, that makes EVOO a perfect fit.

But olive oil isn't just "allowed" on keto. It's arguably the best fat choice you can make. While many keto dieters default to butter, coconut oil, or MCT oil, extra virgin olive oil offers something none of those can match: thousands of peer-reviewed studies confirming its benefits for heart health, inflammation, brain function, and longevity.

Let's break down exactly why.

Olive Oil Macros: The Keto Breakdown

Here are the exact macronutrients in extra virgin olive oil:

Zero carbs. Zero net carbs. Zero sugar. Olive oil will not affect your blood sugar, will not kick you out of ketosis, and will not count against your daily carb limit, whether you're doing strict keto (20g net carbs) or a more relaxed approach (50g net carbs).

Fat Breakdown:

The dominant fat in olive oil is oleic acid, a monounsaturated fatty acid that has been extensively studied for its anti-inflammatory and cardioprotective effects. On a keto diet where you're consuming significantly more fat than usual, the type of fat you eat matters enormously  and oleic acid is widely considered the healthiest fat to make your staple.

At Savouidakis, our Koroneiki olives, grown at our family estate in the Messara Valley of Crete, naturally produce EVOO with oleic acid content consistently above 75%, among the highest of any olive variety in the world. Combined with zero carbs and naturally high polyphenol levels, our single-estate extra virgin olive oil is tailor-made for keto dieters who want their fat intake to work harder for their health.

Why Olive Oil Is the Best Oil for Keto

Most keto guides will tell you that any high-fat, zero-carb oil is fine. And technically, that's true. But when you compare olive oil to the other popular keto fats, the differences become clear:

Notice the pattern? All of these oils are zero-carb and keto-compatible. But only extra virgin olive oil delivers all three advantages simultaneously: healthy fat profile, high polyphenol content, and overwhelming scientific evidence.

Here's Why That Matters on Keto Specifically:

1. Keto Can Increase Inflammation — EVOO Fights It

Some keto dieters experience increased inflammation, especially when they rely heavily on processed fats, cheese, and cured meats. The polyphenols in extra virgin olive oil, particularly oleocanthal, have documented anti-inflammatory effects comparable to ibuprofen. They help counterbalance the inflammatory potential of a high-fat diet.

2. Keto Can Raise LDL Cholesterol — EVOO Improves Your Lipid Profile

One of the most common concerns about keto is its potential to raise LDL ("bad") cholesterol. Studies consistently show that replacing saturated fats with monounsaturated fats (like the oleic acid in olive oil) improves your overall cholesterol ratio, lowering LDL while maintaining or increasing HDL ("good") cholesterol.

3. Keto Can Cause Digestive Issues — EVOO Supports Gut Health

Constipation is one of the most frequently reported side effects of keto, often due to reduced fiber intake. Olive oil is a natural lubricant for the digestive system and has been shown to promote healthy bowel movements. A tablespoon of EVOO in the morning can make a significant difference.

4. Keto Should Be Sustainable — The Mediterranean Keto Approach

The traditional keto diet can feel restrictive and monotonous. But researchers have developed a "Mediterranean Keto" approach that combines ketogenic macros with Mediterranean diet principles, and the cornerstone of that approach is extra virgin olive oil as the primary fat source.

Studies published in Nutrition and Journal of the American Heart Association have shown that Mediterranean Keto produces the same ketosis and weight loss benefits as standard keto, with significantly better cardiovascular outcomes and long-term adherence.

How to Use Olive Oil on Keto: Practical Guide

Getting enough fat on keto can be challenging. Here's how to easily incorporate olive oil into your daily keto routine:

Cooking

Despite what you may have heard, extra virgin olive oil is excellent for cooking. Its smoke point of 374–405°F (190–207°C) covers virtually every home cooking method, and its natural polyphenols actually make it the most stable cooking oil under heat.

• Sauté vegetables in 2 tablespoons of EVOO (28g fat, 0 carbs)
• Pan-fry eggs, steak, or fish, olive oil adds flavor and healthy fat simultaneously
• Roast low-carb vegetables (broccoli, zucchini, cauliflower, asparagus) tossed in olive oil

Raw / Finishing

This is where you get the maximum polyphenol benefit:

• Drizzle over salads, a classic keto meal of greens, protein, and generous EVOO
• Pour over cooked meat or fish, adds richness and healthy fat
• Make fat bombs, blend olive oil with herbs, garlic, and parmesan for savory keto fat bombs
• Dip with keto-friendly bread alternatives, almond flour bread or cheese crisps with EVOO

Dressings & Sauces

• Classic vinaigrette: 3 parts EVOO + 1 part vinegar + salt + pepper (0 carbs)
• Lemon olive oil dressing: EVOO + lemon juice + garlic + herbs (trace carbs)
• Chimichurri: EVOO + parsley + garlic + red pepper flakes + vinegar (perfect keto condiment)
• Pesto: EVOO + basil + pine nuts + parmesan (very low carb, high fat)

Morning Routine

• A tablespoon straight — many keto followers take a shot of EVOO each morning for fat intake and digestive benefits
• Add to coffee — some people blend EVOO into their morning coffee as an alternative to butter (yes, it works — start with 1 teaspoon)
• Smoothies — add a tablespoon to a keto smoothie (avocado, spinach, MCT, olive oil)

Quick Keto + Olive Oil Meal Ideas:

Whichever way you choose to use it, quality matters, especially when olive oil makes up such a large part of your daily calories. Savouidakis Cretan Koroneiki EVOO is cold extracted below 25°C within hours of harvest, delivering the robust peppery finish that signals genuinely high polyphenol content. It's independently certified and has earned recognition at international olive oil competitions, so you know exactly what's going into your body with every tablespoon

Olive Oil vs Coconut Oil on Keto: Which Is Better?

This is the big debate in the keto community. Let's settle it with data:

The verdict: Coconut oil has one advantage, its MCT content can directly boost ketone production. But EVOO wins in virtually every other category, especially if you're concerned about heart health, inflammation, and long-term sustainability.

The smartest approach? Use both strategically. EVOO as your primary daily fat (cooking, salads, finishing, dipping), and coconut oil or MCT oil occasionally when you want a specific ketone boost.

Can You Use Olive Oil Instead of Coconut Oil on Keto?

Yes. Ιn most cases, you can substitute olive oil for coconut oil 1:1 in keto recipes.

• Cooking & sautéing: EVOO works as well or better than coconut oil
• Salad dressings: EVOO is far superior (coconut oil solidifies at room temperature)
• Baking: EVOO substitutes 1:1 for coconut oil in most keto baked goods
• Fat bombs: Mix. Use coconut oil for structure (it solidifies) and EVOO for flavor and nutrition
• Coffee: Both work; EVOO adds a smoother, less dominant flavor

The one case where coconut oil works better is when you need a fat that solidifies at room temperature (for fat bombs, keto chocolate, etc.). EVOO stays liquid, so it's less suited for recipes that require a firm texture.

Which Type of Olive Oil Is Best for Keto?

Not all olive oil is equal. Especially on keto, where you're consuming it in larger quantities than the average person.

Best Choice: Extra Virgin Olive Oil (EVOO)

This is the only grade you should be using. Extra virgin means:

• Cold pressed / cold extracted. No chemicals, no heat damage
• Highest polyphenol content. Maximum anti-inflammatory and antioxidant benefits
• Full flavor. Fruity, peppery, bitter (signs of quality)
• Not a seed oil. It's a fruit oil, mechanically extracted

Avoid: "Light" Olive Oil, "Pure" Olive Oil, or Blended Oils

These are refined oils that have been processed with heat and chemicals. They have zero polyphenols, no flavor, and none of the health benefits that make EVOO special. They're technically keto-compatible (still zero carbs), but you're missing out on everything that makes olive oil worth choosing.

What to Look For on the Label:

• Extra Virgin
• Harvest date (not just expiration date)
• Single origin / single estate
• Named olive variety (Koroneiki = naturally high in polyphenols)
• Independent certifications
• International competition awards
• Dark bottle or tin

When you're consuming 3–4 tablespoons of olive oil daily on keto, quality isn't a luxury, it's a necessity. Every tablespoon is either delivering hundreds of protective polyphenols or delivering empty calories. 

How Much Olive Oil Per Day on Keto?

On a standard keto diet (70–75% calories from fat), most people need 100–150g of fat per day. Olive oil can realistically provide 30–50% of that:

3 tablespoons (45 ml) per day is a practical, sustainable target for most keto dieters. This provides 42g of heart-healthy fat, 0 carbs, and a significant dose of polyphenols, well above the EU-recommended threshold for cardiovascular protection.

Spread it across your meals: 1 tablespoon for cooking breakfast, 1 tablespoon on your lunch salad, 1 tablespoon drizzled over dinner. Easy, delicious, zero carbs.

At that daily intake, a 500 ml bottle of high-quality EVOO lasts approximately 11 days, making it one of the most cost-effective health investments on your keto journey. When you buy directly from the producer, you're not only getting fresher, higher-polyphenol oil, you're cutting out middlemen and getting estate-quality EVOO at a fraction of specialty store prices. Explore our Cretan olive oils and see the difference single-origin makes.

Keto Friendly Cooking Oils: The Complete Ranking

For keto dieters wondering which oils to stock in their kitchen, here's our evidence-based ranking:

Frequently Asked Questions

Is olive oil keto friendly?

Yes. Olive oil is 100% keto friendly. It contains zero carbohydrates, zero sugar, and zero protein, it's pure fat. Extra virgin olive oil is considered one of the best fat sources on a ketogenic diet due to its high monounsaturated fat content, anti-inflammatory polyphenols, and extensive scientific backing for heart health.

Does olive oil have carbs?

No. Olive oil contains 0 grams of carbohydrates per serving (or any serving size). It will not affect your carb count, blood sugar levels, or ketosis in any way. This applies to all types of olive oil, extra virgin, virgin, and refined.

How many carbs are in olive oil?

Zero. One tablespoon (15 ml) of olive oil contains 14 grams of fat, 120 calories, and exactly 0 grams of carbs, 0 grams of net carbs, and 0 grams of sugar. It's one of the few foods that is truly zero-carb.

Is olive oil a carbohydrate?

No. Olive oil is a fat, not a carbohydrate. It's composed almost entirely of fatty acids, approximately 73% monounsaturated fat (oleic acid), 14% saturated fat, and 11% polyunsaturated fat. It contains no carbohydrates whatsoever.

What is the best oil for keto diet?

Extra virgin olive oil is considered the best overall oil for the keto diet by most nutrition researchers. While coconut oil and MCT oil have advantages for direct ketone production, EVOO provides superior anti-inflammatory benefits, cardiovascular protection, and is backed by the most extensive body of nutritional research of any dietary fat. For the best results, use high-quality, high-polyphenol EVOO from a trusted producer.

Can I use olive oil instead of coconut oil on keto?

Yes, in most cases you can substitute olive oil for coconut oil 1:1 in keto recipes. EVOO works as well or better for cooking, sautéing, salad dressings, and baking. The only exception is recipes that require a fat that solidifies at room temperature (like fat bombs or keto chocolate), where coconut oil's solid texture is needed.

Is extra virgin olive oil better than regular olive oil for keto?

Yes. While both have zero carbs, extra virgin olive oil retains its natural polyphenols, antioxidants, and vitamins because it's cold extracted without chemicals. Regular or "light" olive oil has been refined, stripping virtually all beneficial compounds. On keto, where fat is your primary fuel, the quality of that fat matters enormously.

The Bottom Line

Olive oil isn't just allowed on keto.It might be the single smartest fat choice you can make.

Zero carbs. High in anti-inflammatory polyphenols. Proven cardiovascular protection. Stable for cooking. Delicious raw. And backed by more scientific evidence than any other dietary fat in human history.

The keto diet is about more than just reaching ketosis. It's about fueling your body with the best possible fats. And when it comes to the best fat on earth, 4,000 years of Mediterranean tradition and thousands of modern studies point to the same answer: extra virgin olive oil.

Just make sure it's the real thing. Look for certified, award-winning EVOO from a producer you can trust  because on keto, the oil you choose isn't a condiment. It's the foundation of your entire diet.