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You are here: Home / Diet + Detox / Dangerous Food & Herbs / Cooking with Olive Oil: Know Your Fats

Cooking with Olive Oil: Know Your Fats

by John Douillard on January 15, 2019 | 13 Comments

cooking with olive oilWhat did you cook your dinner in last night? Olive oil? Butter? Canola oil? Lard? There is a lot of confusion around which oils are best for cooking. But with the help of some surprising new research, I can help you get on the right track.

Saturated, Polyunsaturated + Monounsaturated

First, let me explain the basics: we’ve all heard the terms saturated, polyunsaturated (PUFAs), and monounsaturated. Since the 1960s, the FDA has told us that saturated fats (e.g. animal fats, butter, ghee, and coconut oil) are unhealthy. They’ve told us that polyunsaturated fats (vegetable seed oils) are best, while monounsaturated fats (e.g. extra virgin olive oil) are healthy, but not to be used for cooking.

These recommendations are extremely controversial and, while due for a revision, they are still receiving hardline support from organizations like the American Heart Association and others. Let’s take a closer look at what oils are truly best for cooking.

PUFAs are extremely foreign to an ancestral human diet. The exceptions are omega-3 polyunsaturated fatty acids from fish (DHA and EPA) and ALA (alpha linolenic acid) from nuts and seeds.4

PUFAs are made from pressing oil out of seeds, grains, and beans like sunflower, safflower, corn, or soybeans, which is possible only with extremely high pressure, heat, and a multimillion dollar seed oil press. Clearly these seed and bean oils are a very recent introduction to the human diet, but why are they bad for us?

The answer is that the oils in seeds, grains, and beans are very volatile. They quickly and easily turn rancid from sunlight or heat. The clear plastic bottles of cooking oil we were told were so healthy for us have been heated to over 400°F, degummed, refined, bleached, boiled, and deodorized, leaving them indigestible with no nutritional value.

Learn more about why refined oils are toxic here.

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The Chemistry of Fats

Fats are made up of carbon chains connected by either single or double bonds. When the bonds are saturated, the bonds between the carbons are single (with hydrogen atoms making up the remaining bonds). All the available bonds are taken, so the chain is saturated and therefore stable.

In an unsaturated fat, the chain of carbons are connected with double bonds. The single hydrogen bonds are replaced with an addition carbon bond, making a double bond between the carbons (which looks like: c=c=c).

If there are many such double bonds in a fatty chain, it is called a polyunsaturated fat or PUFA. The double bond means that the chain of carbons lacks the hydrogen atoms that strengthen and stabilize the fat, rendering the fat unstable compared to its more stable saturated cousin.

In a monounsaturated fat, the chain of carbons are mostly single bonds (or saturated), except for one unsaturated double bond. Monounsaturated bonds are more healthy because they are mostly stable and saturated (which would look like this: c-c-c-c=c-c-c).

butter heart melting

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When fat is saturated, the bonds are stronger, which is demonstrated by solidity at room temperature: think butter, ghee, and coconut oil. In the refrigerator, they get rock hard and in the heat, they melt. PUFAs (vegetable oils) are weaker unsaturated bonds, which are liquid regardless of the temperature and much more susceptible to damage. A monounsaturated fat (like olive oil) would be liquid at room temperature but would thicken up in the fridge, suggesting that the bond is stronger than a PUFA but weaker than a saturated fat.

So logically, the best cooking oils are the most stable saturated fats like butter, ghee, and coconut oil, which would be the most heat tolerant. That said, it is always wise to use lower heat whenever possible. Enough heat can damage or oxidize any oil, changing a healthy fat into an unhealthy fat.

Smoke Point

The smoke point is when the oil is heated and begins to oxidize and release toxic compounds. A smoke point chart can be misleading because the more refined and processed the oil, the higher the smoke point. Using the oil with the highest smoke point like almond, sunflower, or avocado does not take into consideration how highly refined these oils may be. Unsaturated fats or vegetable oils will generally have a higher smoke or flash point because they are the most refined compared to the more stable saturated fats.

In the lists below, you can see which oils are most saturated and therefore most heat tolerant. It lists the oils from highest to lowest percentage of unsaturated fats. Notice that high oleic sunflower oil is low in unsaturated fats (4%) but extremely high in monounsaturated fats (81%), making it a heat tolerant cooking oil like extra virgin olive oil, which is 73% monounsaturated fat.1

Percentage Polyunsaturated Fat in Cooking Oils (High to Low)

ghee and microbes infographic

 

  • Safflower 80%
  • Flaxseed 74% (high in omega-3)
  • Grapeseed 73%
  • Sunflower 69%
  • Soybean 62%
  • Corn 59%
  • Cottonseed 52%
  • Sesame 43%
  • Canola 28%
  • Peanut 26%
  • Chicken fat 18-23%
  • Olive 11%
  • Lard 11%
  • Palm 9%
  • High oleic sunflower 4%
  • Butter 4%
  • Coconut 3%

Percentage Monounsaturated Fat in Cooking Oils (High to Low)1

  • High oleic sunflower 81%
  • Extra virgin olive 73%
  • Canola 65% (GMO product and highly refined and processed)
  • Peanut 56%
  • Chicken fat 48-50%
  • Duck fat 50%
  • Beef tallow 42-48%
  • Lard 45%
  • Sesame 41%
  • Butter 30%
  • Corn 27%
  • Cottonseed 19%
  • Sunflower 18%
  • Flaxseed 17%
  • Grapeseed 16%
  • Safflower 11%
  • Coconut 6%

To determine the best cooking oils, you would take the oils with the least polyunsaturated fat and the most saturated fat, with a high monounsaturated fat content as well. Since high oleic sunflower oil is hard to find and sourcing is unreliable, I suggest cooking primarily with coconut oil, olive oil, and ghee. Ghee is purified butter with all the milk solids (which can be damaged by heat) removed.

The Magic of Olive Oil

New research suggests that high quality extra virgin olive oil may be the best cooking oil of all because of its extremely high polyphenol antioxidant content and relative stability in high heat. High polyphenol content olive oil has been shown to reduce LDL damage and oxidation and raise healthy HDL levels. A recent study found that both coconut and olive oil increased healthy HDL levels while reducing LDL levels.2

Because all cooking has an oxidizing effect, we should be cooking with the most stable saturated fats like ghee and coconut oil or a high quality monounsaturated fat like extra virgin olive oil that carries powerful antioxidants to mitigate heat damage.

Lipid researcher and author of Superfuel Dr. James Dinicolantonio makes the case that high quality extra virgin olive oil may be the best cooking oil of all. He even suggests cooking meat coated with a thin layer of olive oil to protect the fats in the meat from oxidizing.1

lifespa-image-olive-oil-olives

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Sourcing the best olive oil can be tricky, as 60–90% of the olive sold in grocery stores and used in restaurants may have been adulterated or diluted with PUFAs or cheap, unhealthy, unstable vegetable seeds oils.12

I’ll get into sourcing the best olive oil more below.

New Research on Cooking With Olive Oil

There has been much confusion around the safety of cooking with olive oil, as many studies found the smoke point of olive oil to be quite low. New research suggests that high-grade extra virgin olive oil is very stable at high heat and has a smoke point approaching 400°F.5

Most smoke point tests have been done on low quality, likely adulterated olive oils that were purchased off a supermarket shelf. Studies done on verified high quality extra virgin olive oil have demonstrated low acidity, more stability, higher smoke point, higher resistance to oxidation, and longer shelf life compared to the inferior counterfeit oils on the market.

The stable properties of a high quality extra virgin olive oil are primarily due to the high content of the naturally-occurring antioxidants, called polyphenols. Refining the oil or taking lower quality oil from later stages of pressing significantly reduces the polyphenol content of the oil, which is why getting the highest quality olive oil is so crucial. In one study, certain store-bought olive oils had as much as five times the polyphenol content as others.12

In a 2015 study on cooking with extra virgin olive oil, researchers found that frying with olive oil and water preserved the antioxidant content of the oil and the vegetables that were cooked and, in fact, boosted their antioxidant content.6

Olive Oil Taste Test

A few years ago at LifeSpa, my team and I organized an olive oil taste test using the best oils we could source from around the world, including France, Italy, California, and other countries. While there were amazing oils from Europe, the organic oils from California were undoubtedly the best tasting. The winner of our taste test was from a small, family-owned farm in California named Fandango.

After investigating why their oil was so good, we found that just getting an organic certification in California is a major accomplishment due to the stringent toxin, heavy metal, and pesticide residue requirements laid out in the state’s Proposition 65.

At Fandango, on harvest day, the olives are hand-picked when perfectly ripe, directly put into a certified organic mobile mill on site, then pressed immediately into an oil. This process preserves the highest content of polyphenols and allows them to tout the lowest levels of oxidation on the market. Thank God for small farmers who care about small batch quality, not quantity!

Olive oil splash image

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Over the years, the folks at Fandango have become good friends of ours, but LifeSpa has no business relationship with them other than we love and use their olive oil exclusively.

How to Guarantee the Best Olive Oil

cooking with olive oil organic

cooking with olive oil organic californiaWhen sourcing olive oil, look for a harvest or press date. It is ideal to ingest the current year’s harvest.

If it is a California olive oil, make sure it is certified organic by California Certified Organic Farmers (CCOF) and certified extra virgin by the California Olive Oil Council (COOC).

If the oil is from Italy, look for a DOP seal (Protected Designation of Origin), which means the olives are from where they say they are.

Impressive Olive Oil Facts

  1. Seven tablespoons of high-polyphenol olive oil raises HDL levels by 3%.7
  2. Two tablespoons of high-polyphenol olive oil significantly improves endothelial function.8
  3. High-polyphenol olive oil enlarges HDL cholesterol particles, making them more heart-healthy.7
  4. High-polyphenol olive oil lowers blood pressure in adults aged 55–80.9
  5. High-polyphenol olive oil has been shown to cause toxic and unhealthy cells to self-destruct instead of divide.10
  6. New studies suggest that high quality extra virgin olive oil may protect against cognitive decline, bone density concerns, skin aging, and premature death.11

I hope I’ve given you some food for thought next time you pick up your skillet. Treat your body right by cooking with ghee, coconut oil, or high quality olive oil—your food will taste better, too!

 

This article was originally published in Elephant Journal.

Dr. John Douillard, DC, CAP is the author of seven health books (including bestselling Eat Wheat and The 3-Season Diet), seven online courses (including new Yoga Journal course Ayurveda 201 on Ayurvedic Psychology), and numerous free eBooks. He is a former NBA nutritionist and creator of LifeSpa.com—with thousands of free articles, resources, and videos. LifeSpa is a leading wellness resource, with nine million+ YouTube views and over 130k newsletter subscribers.

References

  1. Dinicolantonio, Mercola, Superfuel. Hay House. 2018
  2. https://www.ncbi.nlm.nih.gov/pubmed/29511019
  3. https://health.clevelandclinic.org/heart-healthy-cooking-oils-101/
  4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2719153/
  5. http://acnem.org/members/journals/ACNEM_Journal_June_2015.pdf
  6. https://www.ncbi.nlm.nih.gov/pubmed/26041214
  7. http://atvb.ahajournals.org/content/34/9/2115
  8. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915409/
  9. https://www.ncbi.nlm.nih.gov/pubmed/25315667
  10. https://www.ncbi.nlm.nih.gov/pubmed/19094209
  11. https://www.ncbi.nlm.nih.gov/pubmed/24219356
  12. http://olivecenter.ucdavis.edu/research/reports

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Categories: Dangerous Food & Herbs, Food Sensitivities Tagged: coconut oil, fat, ghee

Comments

  1. steve says

    March 12, 2019 at 9:08 am

    Ever wonder how many Avocados it takes to make one bottle of Avacado Oil? Or the quality of the Avacado that goes into processing? The real price of real Avacado Oil should be outrageously expensive, assuming my information is correct. One Avacado cost between .50 cents and 1.00 and it takes about 50 or more to make 1 liter. Buying pure Avacado Oil is probably harder than buying pure Extra Virgin Oil Oil. The answer is to know your Farmer.

    Reply
  2. suzanne says

    January 30, 2019 at 2:39 pm

    i moved to Spain four years ago. At the time i was a high carb low fat vegan. i stayed far away from-any oil as i believed it would make me fat. sadly my diet made me fat and and very ill. i even had high cholesterol. our family now consumes 3-4 bottles of good spainsh extra virgin olive oil every month. we are all happier and healthier. no one has gained any weight and the pimples in the corners between my nose and eyes have gone too. DR. John i love what you do, you have taught me so much, thank you

    Reply
  3. Karen says

    January 16, 2019 at 4:10 pm

    No mention of avocado oil which research suggests is right up there with ghee, coconut and olive oil. Thoughts?

    Reply
    • Rich says

      January 26, 2019 at 2:33 pm

      Yes I agree with Karen, it would be nice to get the low down on avocado oil. Just because choices are nice to have.

      Reply
    • steve says

      March 12, 2019 at 9:23 am

      Know your farmer is the answer. Which isn’t as difficult as it seems. Americans have been led down the low-fat diet when everyone knows the Meditteranean diet is arguably the best. I doubt would pass a panel of experts for a rancid test. How do you know IF the oil is Rancid? You don’t. UC Davis study found 70% of supermarket Extra Virgin Olive Oil to be RANCID and the public still buys. Is RANCID oil a health issue? There are NO Lable laws for either Avacado Oil or EVOO. What else is inside the Oil bottle. If you want to know put the bottle in the fridge for 24 hours or freezer for less time. If there is more than one oil you will see more than one layer or consistency to the oil. This will only tell you there is more than one oil inside the bottle. What are the other Oils? Cheap, cheap……

      Reply
  4. Laura says

    January 16, 2019 at 6:53 am

    I’ve heard that all California crops are contaminated with glyphosate because the winds pick it up and spread it farm to farm. How is Fandango able to protect their olive crop?

    Reply
    • C says

      January 16, 2019 at 9:45 am

      Harmful chemicals are present in the air, water, and soil of every state in the U.S., and in most populated areas in general. There’s little you can do to avoid it, and each variety is harmful in its own special way. The stress caused by worrying about these threats is for some people just as bad (or worse) than the toxins affecting their bodies. Fandango’s olive crop will understandably present with some contaminants, just like most produce – but it’s especially important to keep in mind that plants are living beings with their own biological intelligence. Just like humans, plants are able to resist and transform environmental toxins, even synthetic ones. In fact, they’re far better at resisting some types of accumulation and transforming some types of harmful chemicals into useful ones than humans are.
      The best way to avoid being affected by toxins that surround us is to listen closely to your instinct when selecting foods (or consuming anything), and to generally live a medicinal life. Great amounts of biological stress have been taken off of humans in recent times because of excellent advancements in comfort and convenience – even in regards to healthful items and practices. The trade-off is that now there are new sources of biological stress in pollution, greater exposure to harmful microbes (for those in populated areas), synthetic chemicals, on and on. But the true amount of threats around us hasn’t changed much, to my knowledge.
      …In other words… my advice would be to consider trying some Fandango olive oil, if you like olive oil, and be your own judge! 🙂
      As a last note, I’ve heard tell from a farmer friend of commonly used agrochemicals (including glyphosate) that have been traced over entire states. I was told a story about a group of negligent farmers who sprayed on a windy day and ended up killing wide swaths of crops in a completely different state. Whether or not this is true, who knows! But airborne pollutants are able to travel very long distances, and I’d assume they’re rarely kept to one small community.

      Hope this helps!

      Reply
    • Carolyn Shaffer says

      January 19, 2019 at 4:23 pm

      Certified organic farms are required by their certifier to have a buffer zone around their crop land to mitigate any danger of potential “pesticide drift” from neighboring farms.
      Also, Fandango’s organic certifier (CCOF) does random, unannounced sampling/testing of their olive crop. Said samples are then sent to a 3rd party lab for testing.. A certificate is then sent to Fandango stating “no pesticides detected”. We hope this clarification is helpful.

      Reply
  5. Vacheslav says

    January 16, 2019 at 12:08 am

    But California is on the west coast, i checked :), which means it is fukushimated! God willing, on Friday, i’m heading to buy Syrian beans and humus and olive oil , maybe something extra too! yes the have them imported here 🙂 and i cooked with sesame oil and it is quite good!

    Reply
  6. J says

    January 15, 2019 at 8:46 pm

    What about the advice not to cook with olive oil, and only use on salads and flavoring food already cooked?

    Reply
    • Per says

      January 18, 2019 at 5:56 am

      High polyphenol oil has a higher smoking point.

      Reply
  7. Matt Svirida says

    January 15, 2019 at 6:11 pm

    Water saute

    Reply
  8. Sandy says

    January 15, 2019 at 1:07 pm

    I loved everything about this blog post!
    Excellent information and so well explained!!
    Makes me feel better knowing that these are the 3 fats that I have been regularly consuming and cooking with.
    I will confidently continue to use them and recommend them.

    Reply

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