Friday, March 5, 2021

Podcast Interview (A Twofer!): "The Dangers of Omega 6 Seed Oils" and "Soybean Oil Retardation"

David Gornoski interviewed me not once, but twice recently. A first for me, both of these made it to radio! His show appears on WHBO and WFLA in Florida.

The first interview was on February 27, 2021, and the topic was a familiar one:

"The Dangers of Omega 6 Seed Oils"

Introductory, clearly, but hopefully interesting even if you're familiar with the topic.



Or here, for video:

On March 3 David asked me back to discuss a recent paper:
"Dysregulation of Hypothalamic Gene Expression and the Oxytocinergic System by Soybean Oil Diets in Male Mice" (Deol et al, 2020)
Which was brought to my attention to back in December:
We didn't get into some interesting attributes of this study (like what role linoleic acid actually had) because I wanted to draw attention to some of the previous work this group had done (see citations), leading to my all-time favorite industry rag headline:
"Less Obesity", so they know it causes obesity.

That discussion is here:

The article that spurred the discussing was the EU Times lift of an RT International story (last two citations below), unfortunately I didn't have time to deflate some of the more hyperbolic claims from those two articles: I tried to just stick with the science, which does largely support the hyperbole.

I was introduced to David by Chris Knobbe, MD, so thanks for the introduction, Chris!


Deol, P., Evans, J. R., Dhahbi, J., Chellappa, K., Han, D. S., Spindler, S., & Sladek, F. M. (2015). Soybean Oil Is More Obesogenic and Diabetogenic than Coconut Oil and Fructose in Mouse: Potential Role for the Liver. PloS One, 10(7), e0132672–e0132672. https://doi.org/10.1371/journal.pone.0132672
Deol, Poonamjot, Fahrmann, J., Yang, J., Evans, J. R., Rizo, A., Grapov, D., Salemi, M., Wanichthanarak, K., Fiehn, O., Phinney, B., Hammock, B. D., & Sladek, F. M. (2017). Omega-6 and omega-3 oxylipins are implicated in soybean oil-induced obesity in mice. Scientific Reports, 7(1), 1–13. https://doi.org/10.1038/s41598-017-12624-9
Deol, Poonamjot, Kozlova, E., Valdez, M., Ho, C., Yang, E.-W., Richardson, H., Gonzalez, G., Truong, E., Reid, J., Valdez, J., Deans, J. R., Martinez-Lomeli, J., Evans, J. R., Jiang, T., Sladek, F. M., & Curras-Collazo, M. C. (2020). Dysregulation of Hypothalamic Gene Expression and the Oxytocinergic System by Soybean Oil Diets in Male Mice. Endocrinology. https://doi.org/10.1210/endocr/bqz044
GMO-Sourced Soybean Oil Causes Less Obesity than Conventional Oil. (2017, October 2). GEN - Genetic Engineering and Biotechnology News. https://www.genengnews.com/news/gmo-sourced-soybean-oil-causes-less-obesity-than-conventional-oil/
Soybean Oil Causes Mental Retardation, Autism, Dementia and Alzheimer’s Research Finds. (2020, January 24). [News]. The European Union Times - World News, Breaking News. https://www.eutimes.net/2020/01/soybean-oil-causes-mental-retardation-autism-dementia-and-alzheimers-research-finds/
Would you like brain damage with that? America’s favorite cooking oil causes neurological changes, says animal study. (n.d.). RT International. Retrieved March 3, 2021, from https://www.rt.com/news/479111-soybean-oil-change-mice-brain/

7 comments:

  1. Articles about soy always make me think about TPN, total parenterall nutrition, and Intralipid, a soil based lipid that's infused as part of TPN. I wonder if and/or how soy oil is modified in the intestinal tract and the differences between eating it and having it hosed straight into your veins. http://roarofwolverine.com/archives/1557

    ReplyDelete
    Replies
    1. There are certainly differences in TPN versus consumption, TPN seems to have worse effects on the body, as you are avoiding the fat-regulation mechanisms. Too much fat, like too much glucose is a bad thing in circulation.

      However, LA via the intestinal tract seems to be problematic on its own, given the rodent results.

      Delete
  2. Sorry, autocorrect booboo. Should have been "Intralipid, a soy based lipid".

    ReplyDelete
  3. listened to your interview - you mentioned the half-life of LA - with a different number than I had (I did not have a lot of confidence in my 600-day number ).

    Where did you pick up the number? (some months - rather than years)

    ReplyDelete
  4. Hey Tucker,

    i was wondering if you ever looked into the reasons for the hair loss epidemic in modern man? The usual explanation of "too much DHT" seems a bit ridiculous to me at first glance, but I have not yet looked into the issue.

    ReplyDelete
  5. Hey Tucker,

    i was wondering if you ever looked into the reasons for the hair loss epidemic in modern man? The usual explanation of "too much DHT" seems a bit ridiculous to me at first glance but I have not yet looked into the issue.

    ReplyDelete
    Replies
    1. I haven't really. There was a guy going around years back talking about dietary solutions for hair loss. As I don't (yet!) suffer from it, I haven't really looked into it in depth.

      Delete

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