Are Seed Oils Inflammatory?! (The *Evidence* No One Shows)

Published 2022-10-17
"Seed oils are inflammatory!" according to every blog and podcast. But what does the science say? The evidence on 9 different seed oils, heated seed oils and genetic variability. A complete look at seed oils & inflammation and all the evidence you were never shown.

Are seed oils inflammatory?

1. seed oil on inflammation
2. Heated seed oil

vegetable oil is inflammatory? Only seed oils are inflammatory? Depends on omega6s, Linoleic acid?

flaxseed oil not inflammatory. omega3 rich, can be anti-inflammatory
canola oil: CRP didn't change

saturated fat vs omega 6s. replaced saturated fat with unsaturated fats (canola and sunflower). no change in inflammatory markers

one trial compared canola to olive oil, found a reduction in CRP on both canola and olive oil
similar to flaxseed oil. anti-inflammatory?

~1tbsp sunflower oil daily. refined oil, treated with chemicals and heated, not cold-pressed. no significant change to CRP

“n-6 PUFA may act as anti-inflammatory”

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References:
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Disclaimer: The contents of this video are for informational purposes only and are not intended to be medical advice, diagnosis, or treatment, nor to replace medical care. The information presented herein is accurate and conforms to the available scientific evidence to the best of the author's knowledge as of the time of posting. Always seek the advice of your physician or other qualified health provider with any questions regarding any medical condition. Never disregard professional medical advice or delay seeking it because of information contained in Nutrition Made Simple!.

#NutritionMadeSimple #GilCarvalho

0:00 Are seed oils inflammatory? Intro
1:36 Schools of thought
2:06 Flaxseed Oil
3:35 Science, Variability & Perception
6:00 Canola Oil
8:02 Sunflower Seed Oil
10:36 Sesame Oil
11:14 Soybean Oil
12:52 Corn Oil
14:00 Hempseed and Grapeseed Oil
14:31 Safflower Oil
15:42 Dose
16:52 Time
18:36 Acute changes in gene expression
19:45 Whole sources of fat
20:33 Heated Seed Oils
24:51 Summary
25:38 Seed Oil vs Junk Food
26:03 Funding
28:01 Biochemical mechanisms
30:42 Genetic variation
31:28 Dietary choices and emotion

All Comments (21)
  • I would like to see a study on whether comments about seed oils are inflammatory. 😊
  • @clarkeeeee
    I appreciated your careful, balanced approach. You're the first person I've found on the subject who took a fair look at each perspective and came to a fair conclusion without condemning anyone. Thank you! 😊
  • @junktionfet
    Stumbled on this video today and I'm so glad I did. Thank you for keeping the principles of science alive and for doing all of the work compiling these studies. I wish there was more of this out there
  • Thanks for filtering thru all this research, very enlightening! Love your "no opinion" attitude. No drama! Refreshing and clear.
  • @MasonOfLife
    I tell people that breathing is good for you, even essential for good health, but since I’m saying something positive about anything at all, they assume I’m being paid by big air
  • Excellent presentation. I appreciate how thorough your research is on this. Like many who are dealing with inflammation I'm making healthy choices and always learning. Keep on with your work, this is great!
  • @angeljuliedr
    I have been into Immunology, immunotherapy and recent 7 years gerontology and metabolic therapy Research work in Asia. Total of 18 years. We are currently looking at the Japanese diet and the new "Green Zone" of the pool of southern China centenarians. Similarly with rice and grains that have "new" rice or "old" rice, seed oils production and expiry date do contribute to its oxidation and rancidity impact especially in tropical S E Asia. The shelf life after opening the bottle is crucial in terms of using the seed oils for clinical trials. All these trials will start with a fresh new bottle. Individual consumption at home for casual stir-frying or deep frying means the bottle of oil can last for a few months. Rancidity if mild cannot be easily detected by an average person especially so if they are senior or elderly (slightly impaired smell and taste). Dining out has also one risk of having adulterated seed oils that are not fit for consumption. Traditionally, the Japanese 1000 years ago did not use seed oils but mostly boiled their foods using soup based cooking methods. Thank you Gil 👍💓👏for your indepth research and awesome contents. Personally, moderation in consumption and buying and storing small bottles (not large) are my advice to those who stlll want to use seed oils. 🥰
  • Just decided to comment and like every single one of your videos that I watch. The effort you put into them is very much appreciated.
  • @pinkpig8091
    You do like an entire lit review for each video, I’m in awe ❤️
  • You are literally the best science channel I have found so far on YT! Keep the insane work going!!!
  • Thanks again,always great to get the clarification on these widely disputed subjects. Good to have someone doing the homework.
  • @mariapereda9006
    Finally a doctor who has really made a profoundly rational study of the subject! I thank and congratulate you for the research, and especially, conclusions.
  • @user-ff9gv3ml6t
    The question is, how do these oils affect lipo proteins and cholesterol and heart disease
  • @Fomites
    Great work in this video - congratulations :-) Thanks for all the hard and meticulous work along with references. I wish more videos for the general population on health topics took your approach.
  • Thanks for your focused view on this hot topic! Every video your team puts out makes my family and me healthier and more science-driven consumers.
  • Really well done video. Appreciate all your work answering these nutrition questions!
  • IMO "seed oils" is simply a proxy for diet quality. If your diet ais high in seed oils it means you probably eat a lot of snack foods like chips, crackers, cookies and fast food. Not great if you are concerned with your health.
  • @dubfire77
    Excellent work as always! The only thing it was covered from my perspective was organic vs. conventional oils, in case there are this kind of studies. I hope this video has a follow up regarding the consumption effects of different types of oils on cholesterol levels.
  • You're awesome and I really appreciate the work that you do. This is super beneficial in helping me figure out what is best for my family's diet. Thank you!!
  • The good scientist's conclusion is uncritical of seed oils health value BUT my gut feeling says seed oils are unhealthy. Make out of that what you will.