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

universityofcalifornia.edu

391–400 of 464 posts

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

#391

I used to eat sardines every day trying to get the health benefits of fatty fish. They were packed in soybean oil. I drank the oil too. With time I began to have bizarre mental issues that I finally tracked down to the sardines. Sardines packed in olive oil don’t cause this issue. That’s my anecdata to share.

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

#392

Earlier quoted context omitted.

Suggestions on how I can get enough complete protein in such a diet? I am open to reducing meat for health if this is a factor but eat about 150 grams complete protein every day and this is hard to replace from vegetarian. The few vegetarian dishes I see with significant protein are often not nearly as good as yogurt, meat, eggs or just stuff with whey protein in it. I can't see much with comparable protein to calori…

There's 2 ways to look at protein. There's a life-span way and a health-span way. Do you want to live longer? or do you want to feel and potentially look better? When it comes to protein, these two things seem to be at odds with one another. High protein is correlated with shorter lifespans. - https://www.nih.gov/news-events/nih-research-matters/protein... - https://www.youtube.com/watch?v=yC-ej7HbPWg You'll notice t…

This is wise and comprehensive HN comment. My only recommendation is to realize that no human ever sits right on a high dimensional mean or median. You are all unique!

The variances explained by the statistical models of longevity and health are generally woefully low.

Don’t even talk about correlation for populations unless you add the “variance explained” and unless you are sure the statical model and cofactors apply broadly.

You, as an individual, may be way out in metabolic and life-style left field. Are these recommendations even of the correct polarity for you?

We raised 80 different strains of inbred mice on both standard and very high fat (60% calories from lard) diets. Each strain was randomly assign to either diet for life with about 8 to 10 replicate “identical twins” per diet.

Do you think we can make a dietary recommendation for mouse number 81? Well at a crude level, sure. The high fat diet generally is not a good diet in terms of lifespan. But there are big deviations from the mean and at least one strain lived much longer on the ridiculous high fat diet than on the standard chow diet.

Paper by Roy S et al 2021 in Nature Metabolism, and open in bioRxiv:

https://www.biorxiv.org/content/10.1101/776559v3

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

#393

Do not take this work seriously unless you are a male inbred mouse of the C57BL/6N persuasion. This is a classic N=1 study of one sex and one genome of mouse. As such this work is of almost no know relevance to other strains of mice, let alone to humanity. If you want an example of how mice dietary studies should be done then look to the National Institute on Aging and its Interventions Testing Program. They use both…

Well I am a male inbred mouse. My mother/sister and I appreciate this article immensely. We're both sight-impaired and have extra short tails.

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

#394
post #149
post #107

Earlier quoted context omitted.

I was at Target in the sauce aisle and I couldn't believe how literally every sauce I picked up had Soybean oil as the first ingredient.

What is surprising about that? They use what's cheapest.

I think it's revelatory that the supply side finds some byproduct (hey we have all these seeds from cotton, can we do anything with them) and then they force a product from it after the fact, and now we are all worse for it. The market is fake.

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

#395
post #393

Do not take this work seriously unless you are a male inbred mouse of the C57BL/6N persuasion. This is a classic N=1 study of one sex and one genome of mouse. As such this work is of almost no know relevance to other strains of mice, let alone to humanity. If you want an example of how mice dietary studies should be done then look to the National Institute on Aging and its Interventions Testing Program. They use both…

Well I am a male inbred mouse. My mother/sister and I appreciate this article immensely. We're both sight-impaired and have extra short tails.

LOL. And except for the pathetic Chr Y all three of you (and you unmentioned father) are also all the same genetic individual. Yes, mice are a bit weird.

Sorry to hear about the short tail running in the family.

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

#396
post #320
post #164

Earlier quoted context omitted.

https://www.news-medical.net/health/Oils-Rich-in-Linoleic-Ac... Look, if we're going to make major life changes on the basis of this one study, you've missed the opportunity for an all-chocolate diet.

^ best post of the thread!

Yep, certainly the funniest.

Does it have to be dark chocolate?

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

#397
post #7

Earlier quoted context omitted.

Could you elaborate on that? It doesn't surprise we that "genetic changes" is used sensationally, just would like to know what is actually happening and whether it's uncommon or something pretty normal?

In the simplest terms: Gene expression constantly changes. It's a field known as epigenetics. You have tons of genes, not all of which are constantly active. You have histones in your DNA that allow certain portions to be read while others are locked away. This changes how your genes activate.

Close. But much of the control of gene expression is not formally epigenetic. Much is due to modulation by transcription factors and mRNA splicing machinery. Clearly related to DNA access for transcription but not what is typically meant by epigenetics.

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

#398
post #107

What is soybean oil traditionally called in the US? I've never actually seen "soybean oil" myself (though it surely exists). Is this the same as "vegetable oil"?

I was at Target in the sauce aisle and I couldn't believe how literally every sauce I picked up had Soybean oil as the first ingredient.

not just every sauce. But salad dressings, marinades, processed crackers/cookies, cereals, granola, most bread, most tortilla shell (soft and hard).

Hell - most "dried fruit" aside from raisins, like blueberries, dried cranberries, and so forth, are all swimming in it. Eating those "healthy" kale chips, beet chips, coconut chips? Check how much added sugar and how much omega6 ridden oils they use

Sardines are packed in soybean oil.

If it's not soybean oils, then it's cottonseed, grapseseed, canola, corn oil, or any other number of oils that we have as larger industrial byproducts.

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

#399

Do not take this work seriously unless you are a male inbred mouse of the C57BL/6N persuasion. This is a classic N=1 study of one sex and one genome of mouse. As such this work is of almost no know relevance to other strains of mice, let alone to humanity. If you want an example of how mice dietary studies should be done then look to the National Institute on Aging and its Interventions Testing Program. They use both…

I think this is a fair point. I see other comments pointing out the value in this as exploratory research. There's some middle ground here though. I think studies like would serve the lay reader and non-scientific community by including a disclaimer sentence in the abstract about not extrapolating conclusions from this. Their opening sentence does the opposite, "Soybean oil consumption has increased greatly in the pa…

I feel like they are leading so that very thing happens. Noteriety and buzz are the goals.

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

#400
post #317

Earlier quoted context omitted.

Can’t all these things also be explained by our increasingly sedentary lifestyle?

I see three problems with that explanation. First, I'm not sure there's a strong case that our lifestyles today are any more sedentary than in, say, the 1970s (when obesity rates were around 12% rather than 30%). We had cars, transit, elevators, escalators, school buses, television, keyboards, etc. in the 1970s, while at the same time "going to the gym" was just not something that average people did on a regular basi…

I don't think any significant portion of the population is going to the gym regularly these days. There is definitely a fitness community, but most people just sit around and eat.
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