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

universityofcalifornia.edu

441–450 of 464 posts

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

#441

It's nice to see the anti seed oil discourse ramping up lately, but I'm sort of pessimistic about this. Like what is the endgame, exactly? Seed oils are in basically everything. Trying to avoid them is like trying to avoid endocrine disruptors by not touching plastic or eating anything that has touched plastic. It's sort of an absurd thing to even attempt, it would drive you insane.

I don't understand what you mean. Seed oils aren't in most things; if seed oil is in even half the food you eat, your diet is likely appalling. I'm pretty sure I haven't eaten seed oil in at least a few months. I mean yeah if you're eating Doritos, sure, but it's really not that hard to cook from whole foods. Plastic is much harder to avoid; not even remotely close I'd say.

If you buy anything premade in any way, to the level of white bread, it has seed oils

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

#442

Earlier quoted context omitted.

I don't understand what you mean. Seed oils aren't in most things; if seed oil is in even half the food you eat, your diet is likely appalling. I'm pretty sure I haven't eaten seed oil in at least a few months. I mean yeah if you're eating Doritos, sure, but it's really not that hard to cook from whole foods. Plastic is much harder to avoid; not even remotely close I'd say.

If you buy anything premade in any way, to the level of white bread, it has seed oils

I don't buy anything pre-made, generally. If it's not seed oil it's HFCS or some other garbage ingredient. I 98% just buy ingredients themselves. The bread I buy is whole wheat and I've just confirmed that it does not have seed oils.

The thing is, I'd like to stress that I don't go out of my way to do this or expend much extra effort. It's not a burden to eat a potato instead of a cup ramen or something. People just don't care about their health and buy every trash food they see.

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

#443

Earlier quoted context omitted.

Hmm I don't know that I have to be either strictly, I'm thinking about cutting down my intake mostly of meat but also things like eggs that can carry through higher concentrations. Plus if there is some good complete plant protein that tastes fine, I hope maybe it's cheaper (eating lots of protein is expensive LOL)

I really like canned black beans. They have a decent amount of protein and fiber, they taste good, they're pretty cheap, and you just have to heat them up. Lentils are also good, but they take a while to cook. I use the white rice setting on the rice cooker.

Few if any plant based proteins are complete proteins. theyre always missing some amino acids or another.

Even this list of vegan complete proteins are mixtures of multiple foods

https://www.peta.org/living/food/complete-proteins-vegan/

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

#444

Earlier quoted context omitted.

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

But we don't. Canola is a trademark for a seed oil with low erucic acid, but it's still rapeseed oil, just like Cosmic Crisp is still just an apple.

Being low in erucic acid is a significant difference, making it more marketable. It isn't "just" rapeseed oil.

And Granny Smith apples are green. I don't think anyone would ever mistake one for a Red Delicious apple.

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

#445

> In all likelihood, it is not healthy for humans. I'm sure their mouse studies are showing them something, but this is the kind of bold claim that wants to be tested anthropologically as much as bio-pharmacologically. China is the leading consumer of soybean oil. It's been a dietary staple since the 11th century. Any claim it's generally unhealthy has to reconcile with the fact that it's been used for 1000+ years. P…

In aggregate it has, but the processing and quality of the oil has certainly changed. Notwithstanding, there has been a steep increase in total consumption of vegetable oil since the mid 20th century, owing to boxed / processed products. It's possible that the primary issue is oil consumption is not as moderate as it was.

Yes, the fact that the Chinese have been using soybean oil for one thousand years may be completely irrelevant for the properties of the soybean oil produced today.

Until last century, the oil was produced by pressing.

Now it is produced by solvent extraction, which extracts much more oil, but it may also extract other substances, which were not extracted by pressing.

The research commented here has shown that not the actual fat from soybean oil causes problems, but another unidentified component.

It is quite possible that the dangerous soybean oil component is something that is present only in the modern soybean oil, obtained by solvent extraction.

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

#446

I remember writing soy is basically poison and definitely not a health food here on HN not long ago. People would be smart to wise up to this sooner rather than later. It is still an extremely unpopular stance because many are lead to believe that this dirt cheap source of protein is "okay".

There seems to be a lot of info that it's both great for you and terrible for you. This is probably a good case for when "all things in moderation" is a reasonable approach.

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

#447

Earlier quoted context omitted.

In aggregate it has, but the processing and quality of the oil has certainly changed. Notwithstanding, there has been a steep increase in total consumption of vegetable oil since the mid 20th century, owing to boxed / processed products. It's possible that the primary issue is oil consumption is not as moderate as it was.

Yes, the fact that the Chinese have been using soybean oil for one thousand years may be completely irrelevant for the properties of the soybean oil produced today. Until last century, the oil was produced by pressing. Now it is produced by solvent extraction, which extracts much more oil, but it may also extract other substances, which were not extracted by pressing. The research commented here has shown that not th…

That makes me wonder if pressed soybean oil is available. I'll have to look for it.

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

#448
post #207

Soybean oil has less partially hydrogenated oils than other deodorized oils, making it potentially the healthiest of the deodorized oils. Obviously deodorized oils are not very healthy, but I honestly don't understand all the posts like "Eat only coconut oil/butter/lard". For the "appeal to science", there's plenty of data that diets very high in saturated fats is a risk factor for heart disease. For the "appeal to n…

This comment comes off as extremely uninformed; there is far more chemistry involved in nutrition than the tiny factors you mentioned. Appealing to science could also be eating a higher saturated fat diet like in France where heart disease is lower than in the US. There is lots of science that is ignored by the ignorant and uninformed. Not to mention omega6 vs omega3; what you say is "appeal to nature" is actually ap…

I really don't understand why calling me ignorant or uninformed is neccesary. I'm just bringing up some counterpoints - something else to consider, I'm not recommending a diet based on soybean oil or anything.

I'm curious if you have any direct response to my points - do you know of any reasons that could make another deodorized oil a better option? I would really love to hear it, since I do recommend people that soybean oil is healthier than deodorized palm, canola, or peanut oil.

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

#449

Earlier quoted context omitted.

But we don't. Canola is a trademark for a seed oil with low erucic acid, but it's still rapeseed oil, just like Cosmic Crisp is still just an apple.

Being low in erucic acid is a significant difference, making it more marketable. It isn't "just" rapeseed oil. And Granny Smith apples are green. I don't think anyone would ever mistake one for a Red Delicious apple.

But it's all just apples and rapeseed oil, it's not like apples and oranges.

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

#450

Earlier quoted context omitted.

The PUFA in grapeseed oil is linolenic acid (~75%), which this specific study ruled out as the cause of the genetic expression changes observed in high-fat diets with soybean oil. FTA: >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, sin…

Huh, I did actually miss that. Thanks for pointing it out. Linoleic acid isn't fully accepted as being healthy, so it was an easy assumption for me to make. My understanding of linoleic acid is that it got a ton of good press as a result of the blowback from the discovery that we were basically poisoning ourselves with trans fats. So it wasn't really that we know PUFAs / linoleic acid are good, it's just that we know…

There's a difference between a dietary supplement being overhyped, and it actively causing harm.

Unknowns != Linolenic acid is harmful; and from this study it's at least obvious that it doesn't change genetic expression in the thalamus.

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