Posted by hanlie | Posted in Health and Fertility | Posted on 13-03-2009
In our quest to balance our hormones, and thereby regulate our weight and regain our fertility, the correct consumption of dietary fat is of the utmost importance.
Unfortunately, as with so many other foods, misinformation and confusion abound and we are left to make some sense of all the terms being thrown at us, like saturated fats, unsaturated fats, poly-unsaturated fats, mono-unsaturated fats, trans-fats, hydrogenated fats, partially-hydrogenated fats, cholesterol, Omega 3, Omega 6, Essential Fatty Acids, etc. One day we’re told that the Mediterranean diet is the way to go, and the next day we’re told that we need to be totally fat-free. Is butter better than margarine? Fish or flax? No wonder people just give up and eat whatever is cheapest and most readily available!
The truth is that our bodies need fats in order to function properly. That is why certain fats are called “essential”. When we don’t get these fats we will find ourselves constantly craving salty foods like fries, cheese, chips, etc. (Not that these foods provide the right kind of fats, but because we have forgotten how to interpret the body’s signals!). Lack of the Essential Fatty Acids (EFA’s) result in allergies, blood sugar fluctuations, blood pressure fluctuations, arthritis, constipation, sleep problems, skin problems, heart irregularities, weight problems, menstrual problems and problems with the liver.
The two essential fats we need to consume daily are Omega 3 and Omega 6. Omega 9 is not considered an EFA, as the body readily manufactures it from Omega 3 and Omega 6.
So why do we need these fats?
- Fat helps regulate body temperature
- Fat is a source of energy
- Fat provides padding and insulation for the organs and nerves
- Fats help with the absorption of the fat-solluble vitamins A, D, E and K.
- They allow the endocrine (hormonal) system to function correctly, thereby ensuring that the right amount of hormones are produced at the right time.
- Fats help with the production of vitamin B12 in the intestines
- Fats enable the body to utilize calcium and phosphorus optimally
Omega 6 fats are easily obtained from a natural diet, as it is present in abundance in fruit and vegetables, as well as nuts and seeds. But if you eat only processed foods you may find yourself developing symptoms of Omega 6 definiciency, such as heart and circulatory problems, skin rashes, arthritis, impaired immunity, kidney degeneration, hair loss, lower sperm counts in males and an increased risk of miscarriage.
More common, however, are deficiencies in Omega 3, which is predominantly found in flaxseeds & flax oil, hemp seed and its oil and green leafy vegetables. The symptoms include high blood pressure, low metabolic rate, immune dysfunction, water retention, dry skin, impaired vision, learning disabilities, weakness, etc.
Fish oil does not contain Omega 3, only two of the five derivatives of Omega 3. Furthermore, fish oil is extracted using heat, is high in cholesterol and is often polluted with heavy metals like mercury. The fish oil / flax oil debate has been raging for years, but I feel more comfortable with flax (or hemp, for that matter).
From a health point of view, the most important thing we need to concern ourselves with when it comes to fats is whether the fat has been heated or not.
The human body cannot deal with fats that have been heated to more than 100-160°C (212-320°F), depending on the type of fat. Heated fats wreak havoc with our hormonal systems and predispose us to cancer, heart disease, obesity, infertility, etc (depending on our unique genetic weak spots).
Heated fats are found in all baked goods and fried foods. Many oils are extracted from plants using repeated heating processes. Unless your bottle of olive oil states clearly that the oil has been cold-pressed, you should avoid buying it. Usually the first pressing would be cold, using compression only, and subsequent pressings would involve heat.
Needless to say, we shouldn’t be heating oils while cooking either! I use a technique called dry stir-frying where I heat the pan until very hot, add the food and turn it over continually. When it starts sticking, I add a tablespoon of liquid (stock or water) at a time. If I want a little bit of olive oil, I add it after cooking. Similarly, I dry roast my veggies and coat them with oil (if desired) afterwards.
If you really must heat an oil, the safest one to use is coconut oil, as it is stable at higher temperatures (and it imparts a lovely flavor to food!)
I’m sure you’re also aware of the butter vs margarine debate. It’s actually really simple: margarine is an unnatural and highly processed product that has been heated many times, bleached, neutralized with caustic soda, and preserved in sodium benzoate, which is known to cause fetal damage and asthma. I personally won’t touch it! Organic butter and cream can be safely used in small quantities (although they should not be heated).
Trans-fats, hydrogenated and partially hydrogenated fats do not exist in nature and have severe adverse health consequences. They interfere with the body’s production of fatty acids, affect the metabolism and promote heart disease. Many countries are now starting to pass legislation banning trans-fats, but don’t get too complacent – the replacement, interesterified fat, is deemed even worse by experts! One more reason to wean yourself off processed food and start eating natural, whole foods…
But what about cholesterol? Doesn’t cholesterol cause heart disease and cancer?
Cholesterol serves a very important purpose in our bodies, namely to manufacture cell membranes, nerve tissue, hormones and bile acids used to digest food. But cholesterol is not “essential”, meaning that our bodies produce the right amount of cholesterol as needed.
The problems arise when we consume extra cholesterol in our diets. It is important to note that plants do not produce cholesterol, only animals. Dietary cholesterol, meaning animal products, should be kept at an absolute minimum.
The “saturated” in saturated fats and unsaturated fats refer to the available open links in their chemical structure. The more open links they have, the bigger the ability to bond in the body and perform useful functions.
Saturated fats, like butter, have no open links, and are therefore not very useful in the body. They contribute easily to weight gain and should be used very sparingly.
There are two types of unsaturated fats – mono (one open link) and poly (many open links). They are found in all fruits, vegetables, nuts and seeds.
Unsaturated fats pick up cholesterol in the blood stream and transport it to where it’s needed to make hormones like estrogen, progesterone and testosterone, to control appetite, water retention and metabolism and to manufacture vitamin D from sunlight.
So, while we don’t need a lot of fat in our diets, we need to make sure that we get enough of the correct fats daily. That means, mostly natural, unheated and unprocessed plant fats (like flax oil, or ground flax seeds, hemp oil, cold-pressed plant oils, avocado pears, nuts and seeds, olives and organic corn on the cob) and a very limited and occasional intake of unheated animal fats. The hardest part for anyone making the transition is to learn to avoid ALL processed and heated fats, but it can be done!
Your body will thank you in spades… As Karla from Living a Whole Life mentioned to me this week, even your calluses will soften and disappear!
Sources:
Perfect Health: The Natural Way - Mary-Ann Shearer
Eat to Live - Joel Fuhrman, M.D.
Fats That Heal, Fats That Kill: The Complete Guide to Fats, Oils, Cholesterol and Human Health - Udo Erasmus











Wow Hanlie, how timely for me! I *just* came online to search for info about fish and flax oil supplements (because I want to start taking them but not sure which). Thank you so much for the great information! If you don’t mind I do have a question or two, since obviously you have done a lot of research on this stuff and I am not finding the info I want online…
I am looking at Barlean’s fish or flax oils and you said something about fish oil not having the omega 3′s, just derivatives? Can you tell me more about that? On the labels is says the fish oil has EPA, DHA, alpha-linoleic, and “other” essential fatty acids, and then it also has omega 6 and 9′s. And 10mg cholesterol (which is intersting, the flax oil has none!) The flax oil says it only has the alpha-linoleic and 6′s and 9′s.
The fish oil says it is “molecularly distilled”… does that mean not heated?
So I am just trying to sort out this info and anything you can tell me I’d appreciate! (I had no idea there was a “fish or flax” debate… I have no opinion either way!)
Thanks Hanlie, I love all the info I get from your posts!
Lyns last blog post..Fat Kid, Skinny Kid
Another great post. I love how you give details and specifics and yet give a “bottom line” so to speak for those that may be overwhelmed otherwise — brilliant.
I am wondering what you think about coconut oil other than that it is a bit safer to heat it. It is labeled as saturated and yet as a medium chain fatty acid it is used by the body better than other saturated fats — does that fit with your research?
I personally am using less and less oils in general (though I still use a little on occasion of olive or coconut oil) and instead get my fats from the healthy fats you mention — seeds, nuts, avocados (my favorite way to avoid oil on a salad!), and young coconuts.
However the rest of my family is on baby steps moving to only healthy fats … they have come a long way but still have a ways to go — I can only dream of the day that my husband won’t use some type of fat to cook but rather only add it afterwards!
Thank you for the great post! xoxo
Tamis last blog post..Quick Food Diary Stats: Thursday 2.12.09
Lyn – Thanks Lyn! I’m glad I could shine a light on some of your concerns, but for the rest of your questions, I think I’m going to have to do another post. So, next Friday will be Part 2 of Fats! I will say this though, and it’s just a shot in the dark, “molecularly distilled” sounds to me like heat is involved, since the distillation process generally involves high temperatures. But I will do some more research on that.
Tami – I’m actually quite interested in coconut oil as well, as it seems to be very much a hot topic these days. And I know that Udo Erasmus uses it in his blended oil. So I will include that topic in next week’s post!
If anyone else has any more questions regarding fats, please let me know, so that I can answer them next week!
This sounds weirds, but i love fat. I love how one form can be so food for you and one form can be the worst thing you can put in your body (trans fat) I love how it more claorie dense than anything else, but is one of the best ways to stave off hunger. its like an anomoly- I love it
Kelly Turners last blog post..Q and A: No Legs
great info! I dive into fat every day
……..but only the good ones
these days!
annettes last blog post..Twins 2, Mommy 0!
Thanks Hanlie! I look forward to that post. Better nutrition is sooo important to me… not just weight loss.
Lyns last blog post..Fat Kid, Skinny Kid
Kelly – When one has a figure & workout schedule like yours, obviously one can eat more fat, but the rest of us have to be pretty conservative with our fat consumption!
Annette – Good for you, Annette! And it’s no great hardship to avoid the bad fats when you put your mind to it…
Lyn – I firmly believe that you can’t sustain one without the other…
Thank you Hanlie!
From your lips to the search committee’s ears
I’ll be glad even to get an interview because they are such a good way to tell what kinds of skills most school boards are looking for.
Manuelas last blog post..Here Goes!
great post! I know it was one of my biggest surprises when I learned how to eat again that there are good fats! I had spent years avoiding any type of fat and so it was good to really find out that there are good fats that help you have a healthy and balanced diet with wonderful benefits!
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Manuela – I’ll keep my fingers crossed for you!
Heather – The nonsense that we’ve been told about fats is just astounding!
I like the idea of dry stir frying and roasting. I know but always forget about heating oil!
Psst… there’s something for you over at my blog.
your post was very informative. the difference between all these fats can be confusing, but this made it crystal clear
kristisummers last blog post..Time for a run?
Great info, Hanlie! I think one of the mistakes I made in the very beginning of my fitness expedition was too little fat. I took out the bad fats, but didn’t work hard enough to add back in the good fat.
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Another great post, Hanlie! I have made a major effort to substitute good fats for the bad ones, but I wasn’t aware of the problems with heating them. I too am eagerly awaiting next Friday’s Part II.
Michelle – I think we’re so used to doing it… But we all know that it’s possible to change habits!
Chubby Chick - I’ll pop in just now!
Kristi – Thanks! It’s a lot of info for one post, but once I get going, I can’t stop!
Cammy – I’m sure you felt much better when you started taking in the good ones though!
Ria – It’s all in the details, isn’t it?
Great post, as always!
Love me some Dove dark chocolate with healthy MUFA!
MamaBearJunes last blog post..Dress for dancin
Wonderful information here. Fats are super important but we definitely need to make sure we’re eating the RIGHT fats.
Sagans last blog post..Reflections on the Sugar Challenge
This is quite a up-to-date information. I think I’ll share it on Digg.