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Chris Woolmams / Catherine Woollams
Coconut oil vs Extra Virgin Olive Oil (EVOO)
Is coconut oil good for you or not? 

The short answer is ‘No’.  About 5 or 6 years ago, several (American) health ‘experts’ started to tell people the advantages of coconut oil.  One asserted that there was research showing it reversed Alzheimer’s; another told the world it contained high levels of ‘good’ mono-unsaturated fat.  Co-incidentally both were selling this new wonder elixir (writes Chris Woollams).

My father had Alzheimer’s so I followed the links and read the original research study – It actually said coconut oil did not have an effect on Alzheimer’s, although another study was proposed; this has actually been discontinued through an inability to recruit trialists. See - Alzheimer´s Society, coconut oil

And then we come to the ´coconut oil is good saturated fat´ nonsense. Advocates talk of Lauric acid - how this is somehow ´good´ saturated fat. It isn´t. Don´t just take my word for it. A recent review from Dr. Walter C Willet of the Department of Nutrition at Harvard Public Health said almost exactly what this article says. 

High levels of healthy mono-unsaturated fat in coconut oil? The populations of South East Asia being healthy because they cook with it? These claims are just not true.

The Biochemistry of coconut oil

Coconut oil is maximum 8 per cent unsaturated and 92 per cent saturated fat.  Let’s put this in context.  Butter is 64 per cent saturated fat, and lard is only 40 per cent!

For years, saturated fat has had bad press. 

This is not entirely deserved. in 2010 and then 2014, there were meta-studies showing that high saturated fat consumers had no more cardiovascular disease than low saturated fat consumers.

Go to: Saturated fat has no influence on cardiovascular risk

But for cancer saturated fat is bad news. There are a number of important research studies linking saturated fat to cancer - for example, higher blood levels are linked to breast cancer, and to prostate cancer recurrence; higher blood levels are linked to greater risk of lung cancer in smokers; and higher blood LDL and triglyceride levels are linked to more metastases and lower survival generally. 

The biochemistry of saturated fat is complex. There are long-chain and medium-chain saturated fats - long chain fatty acids or LCFAs; and medium chain fatty acids or MCFAs - and they have very different properties. 

Lauric acid, mystic acid and palmitic acid are the chief long-chain fats of coconut and palm oils. They are also the highest fat ingredients in red meat, chicken and dairy products (milk, butter, cheese).  They are known to increase LDL in the blood stream.

And in coconut oil, those 3 fats are approximately 90 per cent of the total saturated fat.

Yes, one long-chain fat, stearic acid, has no effect on LDL (it is in chocolate too and that’s why eating chocolate doesn’t increase your LDL, while cheese does.)

Lauric acid is a 12 carbon fat. Somehow people claim this is good for you. It isn´t, although there is one study that concluded it can increase HDL slightly in the blood stream (but nothing like similar studies with Extra Virgin Olive Oil).

Next, there are medium-chain fats like caprylic acid, caproic acid and capric acid. These have no effect on LDL, but only comprise 10 per cent of coconut oil.

So almost 90 per cent of 92 per cent is bad saturated fat in coconut oil and this pushes your blood LDL levels up.

It gets worse though.  About 8% of virgin coconut oil is unsaturated.  If yours isn’t virgin but refined, the hydrogenation can turn the unsaturated fats into trans-fats. The worst thing you can consume.

Coconut oil and healthy mono-unsaturated fat levels

Let us explore the claim that ´Coconut oil is good for you because of those wonderful mono-unsaturated fats´. If you look at American Food Standards Agency Figures, you see the following:

Coconut oil contains 6.6 gm of mono-unsaturated fat per 100 gms. Hemp is 15; Butter is 19.8; Soyabean oil is 23.2; Palm Oil is 41.6 and Olive oil is 69.7. Even Lard is 43.8.

Coconut oil Research? 

Another problem is the lack of long-term research on coconut oil; all the studies (particularly the single positive one on small HDL increases) have been over short time periods - usually about 3 months. We are just not talking populations who have attained supreme health through the generations.

And that´s the biggest problem. There are a number of studies on coconut oil proclaiming its health benefits but many are frankly very weak. Shall we talk about the benefits of coconut oil found in one Nigerian study on rats? No, I´d rather not.


Coconut oil and the gutI like to look at real science and especially how foods interact with the gut microbiome. In one study (Immunity Vol 44, Issue 4, 19 April 2016), the lauric acid commonly found in coconut oil was shown to negatively influence T-cell differentiation and proliferation in the gut. A second study in ´Immunity´, the previous October had shown the relationship was linear - the more lauric acid you consumed, the worse the problem. Instead of a normal immune response, lauric acid causes a highly inflammatory response in the gut.

It would thus appear that coconut oil can cause inflammation both in the gut and in the body and weaken the immune system. In mouse models the LCFAs of coconut oil also damaged the myelin sheath on nerves and worsened MS.    

Coconut oil vs Extra Virgin Olive Oil (EVOO)

This is the ultimate reality check for coconut oil.  Everybody knows and understands that EVOO contains a high level of unsaturated fat, and there is research study after research study on its health benefits, its synergistic effects with fish oils, its longevity and heart benefits in the Mediterranean diet and so on. In the above T-cell study, fatty acids from olive oil, reduced T-cell differentiation and reduced inflammation. Plus these short chain fatty acids in the same study reduced symptoms of Multiple Sclerosis.

But where is any comparable volume of research on coconut oil?

1. They cook with coconut oil in South East Asia?

Actually, they don´t. It´s another lie. I live in Thailand, my daughter goes to school in Malaysia, both countries are packed with coconuts. But who eats coconut oil? No one. Who cooks with coconut oil? No one.

A few put it on their hair or skin, but that is rare too.

If coconut oil has such health benefits, don’t you find it a little odd that populations who have been surrounded by the coconuts for thousands of years DON’T consume the oil? And this is true for India, the Philippines, Borneo. Claims that the locals cook with it and it´s a major contributor to their health are just one big fat lie.

2. Olive oil good for heart health, reverses TMAO levels

EVOO contains high levels of monounsaturated fatty acids or MUFAs, and good levels of polyunsaturated fats or PUFAs. According to the Mayo clinic, if you replace saturated and trans fats with MUFAs and PUFAs you get a reduced risk of cardiovascular disease (I think from the research, that is more true for the trans fats). But it is clear that MUFAs lower LDL, and total cholesterol. They also seem to reduce insulin levels and improve blood sugar control.

If you want those healthy mono-unsaturated fats you will get more than 10 times extra from a tablespoon of Extra Virgin Olive oil than from coconut oil. Conversely, a tablespoon of coconut oil will give you 6 times more saturated fat than a tablespoon of EVOO - that´s about 13 gm and the daily limit according to the American Heart Association.

According to
research from the Cleveland Clinic (Feb 2016), a compound called trimethylamine N-oxide (TMAO) has been linked to a higher risk of heart attacks, atherosclerosis and strokes. TMAO is linked to greater deposits of cholesterol in heart artery walls and it interferes with the process that kicks LDL out of the body.

It is now known that certain gut bacteria can convert two specific compounds (l-carnitine and choline) into trimethylamine which is subsequently converted in the liver to TMAO. Choline and l-carnitine are found in high-saturated fat, dairy products, red meat, processed meat and eggs. 

What is clear in further research from Cleveland, a compound DMB could keep TMAO in check. DMB is found in both Extra Virgin Olive Oil and also in Red wine. And a colourful Mediterranean Diet is associated with lower rates of cardiovascular risk and strokes.

Is DMB found in coconut oil? No.

As we at CANCERactive constantly tell readers, your consumption should be 70:30 in favour of good fats - MUFAs - and that means foods like extra virgin olive oil. 

3. What oil should you use for cooking?

The final claim for coconut oil is that it beats olive oil if you want to cook in an oil. Sadly, this claim too is untrue.

If you want an oil to cook in, you should look at Avocado oil. It has by far the highest flash point of any oil - at 520o

EVOO is a mere 406o by comparison. 

Yet again, despite the claims, coconut oil loses out. Its Flash Point is a paltry 365o
 
4. Research vs the Anecdote

Of course, there will always be the chap down the road who drank a ton of coconut oil and cured his arthritis.  There may be a few hundred who have seen long-term health benefits.  Even if we forget about the placebo effect, hundreds of anecdotes don’t equate to research, epidemiology studies or populations who through the eons have benefited from EVOO. The populations of Indonesia and Isaac have not benefited from cooking with coconut oil - they don´t. No, not even Thai food - which uses coconut milk. Sometimes.

Sorry, but you consume coconut oil at your own risk. I wouldn’t. I consume Extra Virgin olive oil, red wine, fish oils, walnuts, almonds, avocados and so on.

Go to: The colourful Mediterranean Diet, the healthiest diet in the world

 



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