2. Eliminate or drastically reduce trans fats and vegetable/seed oils…
This is probably not a surprise when it comes to the trans fats, but many are surprised to know that most industrial vegetable and seed oils are really bad for your health. They came into popularity early last century, and took off, particularly in the 1960s & 70s, when people were convinced of the supposed detriment of animal fat. As a result, many blame the increased rates of heart disease on these manufactured fats.
Trans fats (hydrogenated fats) are the big, bad one right now, and are being blamed by many to be a major, if not the main, factor in heart disease. Known as hydrogenated or partially hydrogenated fat/oil, basically these are manufactured by injecting nickel and hydrogen atoms into a polyunsaturated fat, with a little bleach and coloring, creating a product that either looks and acts like saturated fat and/or gives majorly extended shelf life.
There is nothing about these fats that our bodies know and or can deal with well. There is much metabolic derangement and consumption of these fats can lead to a number of problems including higher risk of heart disease & diabetes, hormonal disruption, immune system damage, increased risk of allergies & asthma and interference with healthy fat metabolism.
So the bottom line with trans fats- stay away. These are like sweeteners, they are everywhere. If you see “hydrogenated” or “partially hydrogenated” oil/fat in the ingredients, stay away. Soy/soybean oil and canola oil are in this category because they contain some trans fats, however government regulations allow these to often be labeled as trans fat free if it falls below a certain serving size. You can usually find trans fats in packaged goods and fast foods- in general, if a product has shelf life, it likely has something bad in there to help it stay fresh. But look for these everywhere. For example, many nut/seed companies roast the nuts & seeds in canola or soybean oil. Staying aware is key.
Vegetable oils and seed oils are right behind although not quite as damaging. Many people still think vegetable oils are good, due to immense commercial demonizing of animal fats and their source: vegetables and seeds. Unfortunately, vegetables don’t have much naturally occurring fat so they are processed immensely to create a fat -chemical extraction (usually with hexane), heating, bleaching, deodorizing and often much more). Seed oils have a little more fat to start with but often go through a very similar process to extract it, creating a similarly unnatural product. These unnatural fats/oils are full of inflammatory properties and have become the antithesis to health. The big ones are soybean, canola, sunflower, safflower, corn, peanut and cottonseed oils. These oils contribute negatively to health, in particular due to their rancidity and atherogenic (arterial) impacts. One of the main reasons for avoiding these fats is the high amounts of omega 6 fat they contain. Although necessary to our diet, omega 6 fats cause inflammation when consumed out of balance with omega 3. Since omega 3 (the balancing fat to omega 6) intake is typically not high, over consumption of omega 6 can lead to many of the same health problems as the trans fats. They are particularly dangerous when oxidized -exposure to light, heat or air- rendering them very inflammatory. So, if you can avoid it, do not use them at all, particularly when cooking and especially when frying. As you can guess, commercially fried foods (e.g. french fries, fried chicken) are cooked in these types of fats and oils (they actually used to use animal fat, which is much healthy for you as it turns out). To make things even worse, these oils and fats are used over and over again and become more toxic each use. In general the same rules apply, look for these everywhere. They are easy and cheap ways to add flavor and substance to food products.
So, what oils/fats can you use in place?
The best for cooking are coconut oil, palm/palm kernel oil and animal fats -including butter/ghee (particularly from grass fed sources), beef tallow, pork lard, and duck fat.
Dressings with olive oil, avocado or macadamia oil (primarily monounsaturated fat but still ideal to keep safe from heat, light and air).
So, all in all, be very aware of the fats you are consuming. If they are from any of the ones mentioned, think twice and preferrably look for a more naturally occurring fat.
Once again, let me know if you have any questions.




#1 by Heidi Pederson on October 22, 2011 - 9:31 am
Great article, thank you. One question… is organic safflower oil okay for cooking?
#2 by Kyle Knapp on October 22, 2011 - 3:47 pm
Thanks Heidi,
I know a few people that like safflower for cooking but I personally don’t use it. I lean more toward saturated fats for cooking due to the stability of the fats as heat increases and they usually have less processing involved in the creation of them. I also try to limit the omega 6 in my diet, which nearly all veg/seed oils are higher in. I also try to limit things that I can’t make myself or things that involve chemicals and/or heat to create. However, if you’re using it once a week, I wouldn’t be concerned. That being said, if I were to use a vegetable/seed oil, an organic high oileic safflower would be one of the better choices. Thanks for your comment, have a nice Saturday…
#3 by Andrew on September 23, 2012 - 10:39 am
Don’t forget lard and ghee! I know you said animal fat but i think lard needs special mention. One the most tasty, most stable, most versatile and best for you. But, unlike everything with food, it has to be a non-industrial product. Industrial lard is hydrogenated and has additives. Instead find the local hog farmer at your farmer’s market, ask if the pigs are fed a diverse diet and are allowed to forage some of the time. If the answer sounds good, ask for leaf lard! Render it down in your oven, and viola! Good for shortening and frying and deep frying and sautĂ©ing, totally neutral flavor and smell. God Luck!
-Andrew
#4 by Kyle Knapp on September 23, 2012 - 2:22 pm
Absolutely! Well said- I have updated the page to include ghee and lard. Thanks for the comment and catching my omission!
#5 by Steph on November 28, 2012 - 1:32 am
Hi. Where does rice bran oil sit in all of this? Thanks!
#6 by Kyle Knapp on November 28, 2012 - 10:13 am
Hi Steph-
I think rice bran oil sits somewhere in the middle. Better than most industrial seed and vegetable oils but not as good as some of the less refined, more traditional fats. It’s an extract from something that doesn’t have much fat naturally occurring, which means it is a bit more of an “unnatural” processed fat/oil. It does seem to have some favorable properties: high smoke point, some antioxidant properties and nice amounts of monounsaturated oleic acid and some saturated fat although the near absence of omega 3 paired with a higher percentage of omega 6 (linoleic acid) gives me a little pause.
Secondarily, I can’t find good info on how long it has been used as a food and it’s only been commercially produced for a short time and was typically used in soaps (although, as a general rule I do think we should only put things on our skin that we could eat).
I think it’s not bad for occasional use, particularly if you can find a low refined, cold pressed, non chemically extracted version.
Bottom line: I prefer oils and fats that come from fatty foods (plants or animals that have fat in good quantity in the whole version that require much less processing and rendering out). I think we should limit the amount of fat we eat from low fat food origins.
Thanks for the comment, I will edit this post to include some thoughts on rice bran oil and a couple other in betweener oils.