Seed oils


(Hannah) #1

Are we supposed to be avoiding them altogether, or is it just that other oils are favourable. I’ve bought myself a lovely big bag of peanuts to snack on today and they are 97% peanuts, the other ingredients are sunflower oil and salt. Does this sound ok?


(Allie) #2

Personally I would avoid and I know others do too, but you’re in the early stages and still learning and finding what works for you - if they seem to fit with you then don’t worry.

I was avoiding seed / vegetable oils long before keto as they triggered bad reflux.


(Candy Lind) #3

I’d prefer sunflower or a few of the other seed oils to grain & canola. I usually try to svoid legume (peanut & soy) oils, too, but sometimes you just can’t avoid things 100% of the time. As @Shortstuff said, if it works for you … just watch the amount of any nuts; the caloric intake can add up really fast, to the detriment of nutrition.


(Zach) #4

I thought I would redirect this thread rather than
start a new one. Is it better to have no fat or seed oil?
I was at Chik-Fil-a and ordered a club sandwich no bun. I got avocado lime ranch dressing and before pouring it on, I noticed the first ingredient was soybean oil. 34 g fat, 2 g carbs, 1 G protein. I poured it on should I have just eaten the sandwich? Or maybe ordered extra bacon on it?


(Bob M) #5

There are theories that seed oils are really, really bad for us. This guy has a lot of blog postings about them:

There is also a theory of obesity that the polyunsaturated fats (PUFAs) in seed oils cause fat cells to be insulin sensitive, whereas saturate fat causes them to be insulin resistant, meaning you overeat if you eat PUFAs.

PUFAs are also highly susceptible to becoming rancid and generating byproducts when heated that are supposedly cancerous.

I personally try to avoid eating seed oils. However, if I go to Five Guys (a burger place in the Northeast of the US), they have peanuts, and I will eat them. I also sometimes will have fried chicken wings. And if I go out to eat, I have to eat meats that are likely seared in seed oils. Unless you want to be a hermit and cook everything yourself, you’ll be getting some seed oils.


(It's all about the bacon, baby) #6

The seed oils are rancid and foul when first pressed. They need to be deodorized, stabilized, winterized, and bleached in order to be made palatable. They are, by and large, extremely high in ω-6 fatty acids, which, while essential to our diet, are inflammatory when ingested in any quantity. They are mostly polyunsaturated fatty acids, which are vulnerable to oxidation when heated, and which also replace the cholesterol and saturated fat in our cell walls, with unknown consequences. Nina Teicholz has a lecture on this; I will try to find the link and post it. She also wrote about this in The Big Fat Surprise. Dr. Phinney says that when people find “too much fat” difficult to deal with on keto, it is usually because they fat they are using is a seed oil.

The most healthful fats to use are those that are mostly saturated and monounsaturated fat: butter/ghee, tallow, lard, bacon grease, and the fruit oils (avocado, coconut, and olive). These are the fats the human race has traditionally used throughout its history.


(Zach) #7

Yes I know all this. Read Nina’s book and found her seed oil section most interesting. My question is if on the road should I eat say a chicken salad without dressing, which would not be very satiating or add a bunch of salad dressing with seed oil which would give me satiating fat but also bad PUFAs?
Should I order a burger with mayo for the fat or no mayo to avoid the seed oil?
Does the badness of the PUFA outweigh the goodness of fat in terms of lower insulin response and satiety signaling? Maybe I should just have a jar of ghee or coconut oil in my car at all times?


(Boots on? Balls to the wall? Good start.) #8

FWIW I’d avoid the PUFA dressing. If the meal has enough protein it should be satiating.