Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

universityofcalifornia.edu

Post reply on HN
Print view View original

261–270 of 464 posts

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#261

Post by Klonoar »

bduerst wrote: post #249
telchior wrote: post #44

Taking account that this is unproven in humans -- it's enough for me to avoid soybean oil, as cooking oil choice is not very important for my palate. That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential…

>which oils would you use for frying and baking? Grapeseed oil is my go to. It's fairly neutral in flavor (slight nuttiness), has high smoke point, and is one that is a source of Vitamin E. For frying and then roasting, I use avocado oil, but keep in mind that many avocado oil bought on the shelves are already oxidized or rancid. There's a handful of brands that tested to be pure, one being Chosen Foods (that I use).…

Seconding this choice as a go-to. I've really found I can't go wrong with it.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#262

Post by unbalancedevh »

PragmaticPulp wrote: post #159
rob74 wrote: post #55

Interestingly enough, soybean oil is virtually non-existent over here in Germany - at least not as oil that you can buy (here the dominant ones are canola, good ol' sunflower and olive - the latter not for frying though), and I also haven't heard of it as an ingredient in industrial foods, but I wouldn't vouch for that.

> at least not as oil that you can buy It's not a common oil you find on the shelves of a grocery store, even in the US. It is, however, a prominent ingredient in a lot of bottled sauces and dressings. You can find it on the ingredients list of most salad dressing and sauces.

Most "vegetable oil" in the US is soybean oil.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#263

Post by valarauko »

bduerst wrote: post #249
telchior wrote: post #44

Taking account that this is unproven in humans -- it's enough for me to avoid soybean oil, as cooking oil choice is not very important for my palate. That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential…

>which oils would you use for frying and baking? Grapeseed oil is my go to. It's fairly neutral in flavor (slight nuttiness), has high smoke point, and is one that is a source of Vitamin E. For frying and then roasting, I use avocado oil, but keep in mind that many avocado oil bought on the shelves are already oxidized or rancid. There's a handful of brands that tested to be pure, one being Chosen Foods (that I use).…

> one that is a source of Vitamin E.

AFAIK the high temperature of frying oil destroys the vitamins it may have

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#264

Post by Klonoar »

undersuit wrote: post #176
SquareWheel wrote: post #104

Earlier quoted context omitted.

Canola is a genetic evolution of rapeseed. They are not the same thing.

Meh, it's all just Rapeseed. No one considers Granny Smith apples to be a different species from Red Delicious cultivars.

...I mean, we do though? There's definitely differences in the products and you wouldn't necessarily sub them 1:1 in some things.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#265

Post by phkahler »

crowbahr wrote: post #69
simonsarris wrote: post #4

> The same UC Riverside research team found in 2015 that soybean oil induces obesity, diabetes, insulin resistance, and fatty liver in mice. Then in a 2017 study, the same group learned that if soybean oil is engineered to be low in linoleic acid, it induces less obesity and insulin resistance. > “The hypothalamus regulates body weight via your metabolism, maintains body temperature, is critical for reproduction and…

From the study: > One additional note on this study — the research team has not yet isolated which chemicals in the oil are responsible for the changes they found in the hypothalamus. But they have ruled out two candidates. It is not linoleic acid, since the modified oil also produced genetic disruptions; nor is it stigmasterol, a cholesterol-like chemical found naturally in soybean oil. 1. We're not mammals that exp…

>> We're not mammals that experience torpor. That doesn't even remotely apply to us.

Your first sentence is obviously true. Your second one is probably false, since the total removal of that seems unlikely compared to evolution simply disabling it. I have no evidence that part of it remains, nor do I see any evidence of total removal.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#266

Post by unbalancedevh »

Pxtl wrote: post #215
rob74 wrote: post #55

Interestingly enough, soybean oil is virtually non-existent over here in Germany - at least not as oil that you can buy (here the dominant ones are canola, good ol' sunflower and olive - the latter not for frying though), and I also haven't heard of it as an ingredient in industrial foods, but I wouldn't vouch for that.

I don't think you'll see "soybean oil" as a product on a shelf you'll see in any grocery store anywhere in the world. It's an ingredient in pre-made foods.

Maybe not marketed as such, but in the US anyway most bottles of "vegetable oil" are soybean oil.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#267

Post by Klonoar »

sosuke wrote: post #14

TLDR; I spent way too long thinking about this in the short time I looked at it. I still want to post my rambling but at the same time take it all with a good dash of salt. That title though. Why does the UoC feel the need to use clickbait titles? I guess it becomes a mouthful when it is "America's most consumed cooking oil, which is soybean oil, causes genetic changes in the brain." But my first though is ... I've n…

>"Additionally, the team notes the findings only apply to soybean oil — not to other soy products or to other vegetable oils."

This was the bit I was honestly curious about. I've taken quite a liking to tofu recently and have been curious if too much is possible.

I still eat a fairly balanced diet so I'm not too vexxed on it, but it's a good distinction here.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#268

Post by azth »

telchior wrote: post #44

Taking account that this is unproven in humans -- it's enough for me to avoid soybean oil, as cooking oil choice is not very important for my palate. That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential…

Try Avocado oil, it's supposed to have a high smoke point.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#269

Post by jelliclesfarm »

krrrh wrote: post #225
jelliclesfarm wrote: post #220

Earlier quoted context omitted.

Wow. Read one article from the web and everything else is ‘BS’. I mentioned that this is for an Indian kitchen. Specifically. Our cooking involves tadka(tempering) and sautéing..we use more pulses/lentils and one pot vegetable preparations than meat..meat requires high heat for Maillard reactions. High smoke point is not to just guide for deep frying in Indian kitchens. We don’t use oil just for deep frying. Everythi…

To back up and... refine... your point. EVOO does contain non-oil elements that will burn when heated and that's obviously not something anyone wants. However, pure olive oil (the yellow stuff) has a higher smoke point and is suitable for frying. In Germany they actually sell refined olive oil specified as Bratolivenöl, "literally frying olive oil", and it will state on the label that it is safe to heat up to 210 C.

The best olive oil is cold pressed which most people have probably never tasted..anyone who has tasted a fresh ripe olive will spit it out..it’s literally inedible.

Olive oil at its best is bitter and sharp and super astringent. That no one would ever recognize even in its most commonly used form..emulsions like mayo. It’s is a viscous opaque yellow liquid gold. Altho there are also varieties that can be green gold at first pressing.

I contracted via my farm to harvest olives from old city trees that were planted by some heiress and they were ancient no name varieties which had a more yellow gold tinge. Lovely bitterness at first pressing. Most olive oils we can buy is refined and processed and blended. When blended with grapeseed oil, they have longer shelf life and doesn’t become rancid as fast.

More recently there has been efforts to mechanize and automate olive harvests but it has resulted in entire olive groves being razed so new dwarf varieties and cultivars suitable for automated harvest are being planted in Europe and Morocco..with table olives from canopied trees being planted in Tunisia and other places where labor is cheaper.

Re: Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)

#270

Post by loudtieblahblah »

Salgat wrote: post #221
simonsarris wrote: post #4

> The same UC Riverside research team found in 2015 that soybean oil induces obesity, diabetes, insulin resistance, and fatty liver in mice. Then in a 2017 study, the same group learned that if soybean oil is engineered to be low in linoleic acid, it induces less obesity and insulin resistance. > “The hypothalamus regulates body weight via your metabolism, maintains body temperature, is critical for reproduction and…

To note, even eggs and lard have large amounts of Linoleic acid, and I'm pretty sure lard and eggs have existed in the human diet for as long as chickens and pigs as livestock have existed.

the rates of linoleic acid in eggs, large, chicken, beef, pork have all changed drastically in the last 100 years because what we feed the animals has changed drastically.

a grass fed cow has a lower omega6 profile than one in a factory farm.

farmers have gotten tricky with it, raising "grass fed cows" but then for a couple months before slaughter, fattening them up with industry "feed". So now when you're at the store you have to find not only "grass fed" but "grass finished" beef.

Chickens that are allowed to eat at will (chickens eat a really wide range of shit, not just "feed" that's mostly corn - they eat grass, bugs, they'll even eat rodents if they can catch one). Chickens in farms usually don't eat like that. If your eggs say "organic", they're certainly not eating like that.

There's absolutely no way to get low PUFA pork these days. At all. Fire in the Bottle blog has partnered with a farm that's raising low PUFA pigs and you can have $100 of pork shipped to you, but that's the only place i'm aware of it.

But yeah, the fat profile of our animals havve radically changed. Because of what we feed them. And then we eat them and the problems goes on up the food chain.

I'm not a vegetarian and i'm not a globalist and there becomes a point where there's a lot of politics in what you eat. I'm not into diets to be kind to animals or even because of the environment. If healthy food hurt the environment, i'm eating healthy food. Ya know?

But at this juncture - you're better off being low meat (wild caught, mercury tested, salmon 1-2x a week, some skinless chicken, grassfed beef 1x a month or something), and eating a mostly vegetarian diet, roughly 1-2 meals a day, lots and lots and lots of veggies. It's simply too hard to account for all the garbage done to meat, from a health perspective.

Post reply on HN