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Cooking with vegetable oils releases toxic cancer-causing chemicals, say experts.

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This has been known for a while, or at least suspected.

We've only been frying in virgin olive & coconut oils for a few years now because of this.
 

entremet

Member
ok, so how safe is Canola?

Not included in the study but here's a primer with scientific references:

Also canola and rapeseed are the same thing.

http://authoritynutrition.com/canola-oil-good-or-bad/

Seed- and vegetable oils are generally unhealthy. Conventionally produced rapeseed/canola oil is no exception.

If you can get your hands on organic, cold-pressed canola oil, then it won’t be as high in oxidized fats and trans fats, so I suppose it is fine to consume.

But I definitely wouldn’t make it a large percentage of calories and I would definitely NOT cook with it, as it is still too high in polyunsaturated fats.

Conventional canola oil (which is what most people are consuming) is low in nutrients, high in oxidized Omega-6 fats, high in trans fats and the Omega-3s happen to be in an inefficient form.

Overall, canola oil is not as bad as other vegetable oils (like soybean oil), but it is still far from being healthy. You would do much better eating olive oil or coconut oil instead.

When in doubt, keep this golden rule in mind: “Nature doesn’t make bad fats, factories do!” – Dr. Cate Shanahan

If you want to learn more about which cooking oils to eat and which to avoid, then read this article here: Healthy Cooking Oils – The Ultimate Guide.
 

entremet

Member
Canola isn't really the same thing as rapeseed. It's a selectively bred variety of rapeseed intended to produce an oil-usable seed without the bad parts of rapeseed oil.

Interesting. I could see how it can be confusing. I think I read they were the same in an older cookbook of mine.

Good to know the nuance.
 

Rocky85

Banned
Im not a fan of the taste of coconut oil(I hate coconut)
Are they all like that or are there any 'no flavor' coconut oils?
 
Im not a fan of the taste of coconut oil(I hate coconut)
Are they all like that or are there any 'no flavor' coconut oils?

Unrefined coconut oil (virgin/pure) tastes like coconuts.

Refined coconut oil doesn't taste like anything, and is generally cheaper than unrefined.

But unrefined gives you a lot more nutrients so if you can get used to the taste (my wife did, she hated coconuts for a long time) you're better off using it.
 

Hilbert

Deep into his 30th decade
Wooo lard!

I generally make a huge batch of lard in December and freeze it to use throughout the year.
 
D

Deleted member 17706

Unconfirmed Member
This has been suspected for a very long time and is written about in plenty of books, especially those that advocate the paleo/natural/organic/whole foods-leaning lifestyle.

I stick with lard, butter, olive oil and coconut oil myself, depending on what I'm cooking. They are all great fats and very stable if not exposed to unreasonable heat.

Really have no reason to experiment with strange oils that have to go through a dozen and one industrial processes before they reach store shelves, like canola/rapeseed oil, for example.

If this stuff really can be linked to cancer as is expected, it means bad things for people who live on food they don't cook themselves. Canola, sunflower, and soybean oil are pretty much universally used in processed foods and restaurants these days.
 

s_mirage

Member
So virtually everything causes cancer, and if it doesn't it probably gives you heart failure, lung failure, or a stroke?

I'm past caring about every scare story that runs these days. I eat and drink in moderation, and get regular exercise. After all that, whatever will be will be. I'd think I'd rather live 20 years less than give up every pleasure in life.

Oh, and I'm not really impressed by a scientist quoted in the article saying what he believes about Omega 6. To paraphrase a line from one of my favourite films, "it doesn't matter what you believe, it only matters what you can prove". He should know better.
 
D

Deleted member 17706

Unconfirmed Member
So virtually everything causes cancer, and if it doesn't it probably gives you heart failure, lung failure, or a stroke?

No, probably not, actually.

You're not going to encounter diet-based health problems if you stick mainly to making your own meals from ingredients that are as close to whole and unprocessed as possible.

Once again...whats good for you today, us bad for you tomorrow. And vice versa.

Nah...

Butter, olive oil, lard, and coconut oil have been good for you since their inception.

It's these weird industrial oils that people embraced due to some ambiguous and unfounded claims about cholesterol that are causing all of the problems. The real reason they became prevalent, of course, is that they are extremely profitable.
 

Damerman

Member
i use coconut oil, olive oil and butter(some times avocado oil)... how do i keep getting lucky with this shit... I'm the fucking bomb.
 

Jonm1010

Banned
Hasn't it been suspected(proven in fact) that a lot of oil olives are not pure?

How does that calculate into this whole confusing cancer causing discussion?

Also isn't smoke point on olive oil pretty low so it can be hard to fry with?
 
And red meat also is known to have cancer causing chemicals. But don't let that get in the way of bro-scientists who will use this study to push palaeo bullshit.
 

Gintamen

Member
Food science is the worst.
"leading scientists"
Experts
Studies
Polls
FZZpure says these threads are becoming malarkey
Food science is worst science.
''evolution'' I thought that's been common knowledge, but it seems like the word science has an deterring effect to some.

I mainly use extra virgen olive oil or some irish butter, sunflower oil for frying, rarely happens though.
 
This has been suspected for a very long time and is written about in plenty of books, especially those that advocate the paleo/natural/organic/whole foods-leaning lifestyle.

I stick with lard, butter, olive oil and coconut oil myself, depending on what I'm cooking. They are all great fats and very stable if not exposed to unreasonable heat.

Really have no reason to experiment with strange oils that have to go through a dozen and one industrial processes before they reach store shelves, like canola/rapeseed oil, for example.

If this stuff really can be linked to cancer as is expected, it means bad things for people who live on food they don't cook themselves. Canola, sunflower, and soybean oil are pretty much universally used in processed foods and restaurants these days.

Naturalistic fallacy in the bolded. This is like saying you'll opt for herbal remedies before ever stepping foot into a hospital. The oil needing to be processed before reaching store shelves doesn't make it inherently bad for you. But you imply that it is. Instead you should use actual evidence to make your case rather than relying on feels.

Also I love the implication that people who cook for themselves don't use vegetable oils.
 
D

Deleted member 17706

Unconfirmed Member
Naturalistic fallacy in the bolded. This is like saying you'll opt for herbal remedies before ever stepping foot into a hospital. The oil needing to be processed before reaching store shelves doesn't make it inherently bad for you. But you imply that it is. Instead you should use actual evidence to make your case rather than relying on feels.

Also I love the implication that people who cook for themselves don't use vegetable oils.

Hi, CornBurrito.

We have an increasing body of evidence and I expect we'll only see more.

It's not a naturalistic fallacy to say that it's not a bad idea to stick with what we know is good.

Also, there was no implication that people who cook for themselves don't use vegetable oils. Most people probably do, since that's what they've been told is good for them for a long time now.

And red meat also is known to have cancer causing chemicals.

...when cooked at high temperatures.
 
Hi, CornBurrito.

We have an increasing body of evidence and I expect we'll only see more.

It's not a naturalistic fallacy to say that it's not a bad idea to stick with what we know is good.

Also, there was no implication that people who cook for themselves don't use vegetable oils. Most people probably do, since that's what they've been told is good for them for a long time now.



...when cooked at high temperatures.

It is naturalistic fallacy when you imply that things are bad because they are processed and that things are automatically good when unprocessed.

You'll need to provide evidence for each individual processed item, and each individual unprocessed item.

In this instance we have some evidence that processed vegetable oils may be bad for you. But you're piggybacking off legitimate evidence to make the unfounded claims that all processed things are bad and all unprocessed things are good.

And what exactly are high temperatures in this case? When I stir fry something at medium high on my stove is that high temperature? If I cook a roast in the oven at 400 is that high temperature?
 

The Lamp

Member
It is naturalistic fallacy when you imply that things are bad because they are processed and that things are automatically good when unprocessed.

You'll need to provide evidence for each individual processed item, and each individual unprocessed item.

In this instance we have some evidence that processed vegetable oils may be bad for you. But you're piggybacking off legitimate evidence to make the unfounded claims that all processed things are bad and all unprocessed things are good.

And what exactly are high temperatures in this case? When I stir fry something at medium high on my stove is that high temperature? If I cook a roast in the oven at 400 is that high temperature?

Yup.

We don't know what causes cancer, therefore everything causes cancer.

That's not true.

Anything that harms your DNA can cause cancer. Aldehydes can do that because they are very chemically reactive, and DNA is just a chemical, after all.

This is also why unsaturated fats are bad. They are unsaturated because they are not saturated with as many Hydrogens as they can hold on to. They have extra bonds available that can latch on to chemicals in their surroundings and react.

Saturated fats are happy with all the Hydrogens they have bonded with so they don't react harmfully with stuff around them very often. Their chains aren't kinked up by particularly fussy carbons who want to attach themselves to other things.
 

Gallbaro

Banned
i use coconut oil, olive oil and butter(some times avocado oil)... how do i keep getting lucky with this shit... I'm the fucking bomb.

Do not worry, you will die in a few years. You will be stabbed by a man wearing nothing but pants on his head with shit running down his leg. Said man may or may not be a eunuch high on bath salts. The police will then deliver the fatal shot to you and 4 other bystanders while firing 102 bullets in the general direction of the man.
 

Damerman

Member
Do not worry, you will die in a few years. You will be stabbed by a man wearing nothing but pants on his head with shit running down his leg. Said man may or may not be a eunuch high on bath salts. The police will then deliver the fatal shot to you and 4 other bystanders while firing 102 bullets in the general direction of the man.

i doubt it, i try to avoid Florida as much as i can.
 

entremet

Member
It is naturalistic fallacy when you imply that things are bad because they are processed and that things are automatically good when unprocessed.

You'll need to provide evidence for each individual processed item, and each individual unprocessed item.

In this instance we have some evidence that processed vegetable oils may be bad for you. But you're piggybacking off legitimate evidence to make the unfounded claims that all processed things are bad and all unprocessed things are good.

And what exactly are high temperatures in this case? When I stir fry something at medium high on my stove is that high temperature? If I cook a roast in the oven at 400 is that high temperature?

Indirect versus direct heat cooking methods.

Sautéing/Frying is a direct heat type of cooking method. The oil is heated by fire or an heating element through a vessel like a saute pan. Or the case of deep frying, a dutch oven or cast iron skillet.

The oil itself gets heated to high temperatures.

Roasting is indirected heat, which is why you rarely need extra fat. The oil or fat rarely reaches high temperature via roasting.
 

akira28

Member
That's it....I'm eating nothing but steamed vegetables forever.

I'm eating nothing but vegetables fried in goose and duck and beef fat, forever.

And what exactly are high temperatures in this case? When I stir fry something at medium high on my stove is that high temperature? If I cook a roast in the oven at 400 is that high temperature?

350+ is high temperature for frying. Anything below 300 for frying and you may as well be boiling it in water. Baking temps are different of course because of the heating/contact method.

Olive oil starts to smoke at 350+, Rapeseed can stay clear up to 450 degrees at which point it also starts smoking like a bastard.
 
Indirect versus direct heat cooking methods.

Sautéing/Frying is a direct heat type of cooking method. The oil is heated by fire or an heating element through a vessel like a saute pan. Or the case of deep frying, a dutch oven or cast iron skillet.

The oil itself gets heated to high temperatures.

Roasting is indirected heat, which is why you rarely need extra fat. The oil or fat rarely reaches high temperature via roasting.

I'm eating nothing but vegetables fried in goose and duck and beef fat, forever.

350+ is high temperature for frying. Anything below 300 for frying and you may as well be boiling it in water. Baking temps are different of course because of the heating/contact method.

Olive oil starts to smoke at 350+, Rapeseed can stay clear up to 450 degrees at which point it also starts smoking like a bastard.

I'm specifically talking about red meat here. Zefah says red meat causes cancer only if cooked at high temperature. But what is high temperature for red meat?
 
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