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

universityofcalifornia.edu

181–190 of 464 posts

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

#181
post #141
post #73

Earlier quoted context omitted.

> Linoleic acid is what induces torpor Is this the same as ALA in flax-seed oil that is supposedly good for us?

It's every high-heat unsaturated cooking oil. Basically every cooking oil except olive oil and full-fat stuff like coconut, butter, and lard contain a decent amount of linoleic acid.

Butter and lard contain Neu5Gc which is another nutrition rabbit hole.

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

#182

I'm not obese. I have a family history of obesity. On the contrary, I am a bit underweight, and I have tried very hard to gain weight and have never managed to accomplish much. What are obese people eating that I'm not eating? What foods are high in soybean oil?

My experience with obese people in my family is that the most consistent theme is quantity. If you're eating 1,000 calorie meals and don't work out all the time you're going to be obese no matter what you're eating. Sugar and carbs definitely help pack the calories, but I've seen people eat 1,000 calorie salads.

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

#183
post #72

Earlier quoted context omitted.

Humanity has been using Olive Oil for at least 1000 years. So that seems pretty safe to me.

Humanity has also been drinking alcohol for thousands more, doesn't mean it's safe.

fwiw while fermentation is at least as old as farming, distillation into liquor only came about in the renaissance. you have to get really competetive to overdose on beer.

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

#184

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…

My personal philosophy is that nothing is good in excess. Avoiding soy products is hard since soybean oil seems to be the oil of choice for anything pre-made. So I basically avoid soy in most everything I prepare myself (and try to prepare most things myself). When I'm cooking/baking, I use butter, olive oil, and (lately) bacon grease, depending on what I'm making. Coincidentally, in January I had made a list of ever…

Tortillas should be pretty easy to make at home too, although I've had a tough time finding a press that doesn't break.

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

#185

The three oils/fat I have been taught to use in my Indian kitchen are: sesame seed oil, ghee and coconut oil. Sesame seed oil because it has a high smoke point. Ditto with ghee. The choice of oils always has to do with smoke point and hence what we use it for in the kitchen. [..] Sesame oil is full of antioxidants. Along with vitamin E and phytosterols, it contains lignans, sesamol, and sesaminol. These compounds hel…

The olive oil bit is a myth - see: https://www.youtube.com/watch?v=l_aFHrzSBrM

Olive oil is actually one of the chemically safest oils to heat.

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

#187

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.

Best to buy ones packed in water. No idea as to the quality of the oil used.

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

#189
post #137

> 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…

Fixating on lineolic acid is kind of hard when basically all high-heat vegetable oils contain a lot of it. If lineolic acid is the problem then basically every unsaturated cooking oil other than olive oil is now unusable. Maybe canola, depending on how much lineolic acid is safe.

Avocado sits somewhere between olive and canola in terms of linoleic acid content (one reference said 13%; another said 7–20%), and has one of the highest smoke points of all cooking oils at 271°C. It's also pretty flavour neutral. It's a fantastic choice for high-heat cooking.

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

#190
post #165

Earlier quoted context omitted.

Avocado oil is fantastic for high-temperature cooking (smoke point ~500F). "Pure" or "refined" olive oil has a smoke point of around 410F; it's EVOO that has the lower smoke point. Deep frying happens at ~375F. Coconut and MCT oils are great for baking, but they do have lower smoke points (320-350F) so they're inappropriate for frying. I generally prefer cooking, frying, and baking with avocado oil, both because of i…

Oh, I didn't know there's a variant of olive with higher smoke point. I'll look out for that, thanks! Not sure if I'll be able to find avocado but I'll try.

If you have a Costco nearby, they sell a pretty high quality avocado oil under the "Chosen Foods" label. It runs about $20 for a 2 liter bottle. The UC Davis study that found a bunch of adulterated avocado oils specifically called out the Chosen Foods oil as being one of the good ones.
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