This is a very important but confusing topic that has a much bigger impact on your thyroid than you realize.
There is a lot of confusing and false information that continues to circulate across the globe regarding what fats and oils are truly healthy.
Unfortunately, you and millions of other people have been led to believe that all of these so called “heart healthy” oils in your diet are preventing future health problems… while the reality is that they are not only heart UN-healthy, but are also linked directly to hypothyroidism.
I’ll show you how in just a minute.
One of my favorite quotes that I find applicable to many situations in life, including this one, is…
Going all the way back to 1960’s, the entire “heart healthy” marketing movement was driven by the fact that polyunsaturated fats (PUFAs) could lower cholesterol.
Even though the “heart healthy” movement is still going strong today, the entire cholesterol myth has been debunked by science long ago.
(NOTE: Want to learn the truth about hypothyroidism, cholesterol, and heart disease? Take a look at this post on “Why “Bad Cholesterol” Is Essential to Your Thyroid“.)
If all of these polyunsaturated fats were so “heart healthy”, then why has heart disease continued to rise in spite of our drastic increase in the use of these oils?
According to statistics from the FDA, our use of “heart healthy” polyunsaturated oils has increased by more than 330% since 1970 with the average person today consuming 51.9 lbs. per year as opposed to only 15.4 lbs. per year in 1970.
If, over the course of 40 years, these “heart healthy” oils have not made a positive impact on heart health, then why does the medical system continue to push them as if another 40 years might provide some different results?
That’s not wishful thinking… As Albert Einstein would say, that’s pure insanity.
The truth is that these “heart healthy” (PUFA) oils are making an impact on heart disease… they’re just making it worse…
Take this PUFA heart health study for example:
Use of dietary linoleic acid [PUFA] for secondary prevention of coronary heart disease and death: evaluation of recovered data from the Sydney Diet Heart Study and updated meta-analysis.
“In this cohort, substituting dietary linoleic acid in place of saturated fats increased the rates of death from all causes, coronary heart disease, and cardiovascular disease. An updated meta-analysis of linoleic acid intervention trials showed no evidence of cardiovascular benefit.”
The study results show the following:
- 62% increase in all-cause mortality (premature death)
- 70% increase risk of cardiovascular disease
- 74% increase risk of coronary heart disease.
Those aren’t slight increases. That’s a huge problem!
That doesn’t paint a good picture for polyunsaturated fats, but believe it or not, polyunsaturated fats can paint a good picture, so to speak…
PUFAs – Great for Paint… Bad for Hypothyroidism
Polyunsaturated fats were once used almost exclusively for paint varnish.
You see, polyunsaturated fats work great for paints because they oxidize and dry very easily, allowing paint to be liquid and then dry when applied to a wall.
But, somewhere between the lines of ignorance and “insanity”, as Albert Einstein would have said, we’ve completely ignored the obvious dangers of these fats in favor of unscientific research and false promises.
It is very well known that polyunsaturated fats oxidize rapidly when exposed to oxygen and heat, and this oxidation creates free radicals, oxidative damage, and cell death.
Killing your own cells definitely doesn’t improve your health, in case you were wondering.
Regardless of how these oils are processed and manufactured, oxygen is abundant in the human body which is heated to roughly 98.6 °F.
Needless to say, your body is a perfect environment for the oxidation of polyunsaturated fatty acids.
But that’s only part of the problem…
Polyunsaturated fats also promote and cause hypothyroidism on multiple levels by blocking every part of your thyroid hormone pathway.
- Polyunsaturated fats block the thyroid gland from releasing thyroid hormone.
- Polyunsaturated fats block the transport of thyroid hormone to your cells within your bloodstream.
- Polyunsaturated fats block your liver from converting T4 thyroid hormone into the active T3 form of the hormone that your cells need.
- Polyunsaturated fats block your thyroid hormone from binding to your cell receptors.
- Polyunsaturated fats block your cells from properly utilizing the thyroid hormone that is available.
(NOTE: Want to learn some some ways to start fixing your thyroid hormone pathway so you can start seeing results with your hypothyroidism? Download our proven 3 Food Triple-Thyroid Boosting Protocol now and learn how to start every day right, feeling calm, clear, and full of energy.)
You can download this daily protocol here.
15 Worst Cooking Oils for Your Thyroid
The only way to stop the thyroid-suppressive effects of most cooking oils is to avoid them altogether.
Unfortunately, this is difficult because these toxic oils are so inexpensive. So, people continue to use them in their kitchens. And they are used almost exclusively in restaurants and in commercial food products where inexpensive oils lead to greater profits.
Below are fifteen of the worst oils/fats that pose the greatest risk to your thyroid based on their ratio of polyunsaturated fat (PUFA) to saturated fat.
Here they are ranked in order, starting with the worst:
- Safflower Oil
- Grapeseed Oil
- Flaxseed Oil
- Walnut Oil
- Vegetable Oil
- Canola Oil
- Corn Oil
- Soybean Oil
- Sunflower Oil
- Sesame Oil
- Almond Oil
- Cottonseed Oil
- Peanut Oil
- Avocado Oil
When Will the Insanity End?
How much longer do they have to keep repeatedly pushing and promoting the use of these oils before we realize that ignoring the science that is right in front of our eyes is true insanity?
By continuing to follow the health advice of the masses, how can you logically expect different results? How can you expect anything but more hypothyroidism, heart disease, and cancer?
Sometimes the only way to achieve opposite results is to take opposite action.
Do yourself a favor, and if you use any of these worst cooking oils, then stop and replace them with a fat known to help support healthy thyroid function.
You can learn more about one thyroid-boosting fat I highly recommend you use instead in our 3 Food Triple-Thyroid Boosting Protocol.