Are PUFAs Really Bad for You? | Simon Hill
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- Опубликовано: 29 сен 2024
- Dive into the world of polyunsaturated fats (PUFAs) with our eye-opening video! Are you consuming the right kind of fats? 🤔 Many believe PUFAs increase the risk of diseases like obesity and heart issues, but is there more to the story?
Discover the essential roles of various fats, including the often-misunderstood PUFAs, found in foods like fatty fish, nuts, and seeds. We'll explore the differences between whole foods and oils, and unravel the complex relationship between ultra-processed foods and health. 🥑🐟
But wait, there's more! Did you know that certain PUFAs can actually lower your risk of diseases and improve overall health? We've got the studies to prove it! 📊
Join us as we debunk myths and reveal surprising facts about PUFAs. Are they villains or vital nutrients? Let's find out!
Stream the full episode on Ellen Fisher RUclips channel: • Breaking Down Popular ...
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Simon, an interesting study was recently published showing the associated risks for ASCVD, PAD and IHD risks from each specific fatty acid (ie not just “saturated fat” but all the different fatty acids that are classified as saturated fat).
The study is “Association of dietary fatty acids with the risk of atherosclerotic cardiovascular disease in a prospective cohort of United States veterans”
Kerry L Ivey et al. Am J Clin Nutr. 2023 Oct.
You may not be all that surprised by the results.
One tricky thing is the increased associated risk from “conjugated linoleic acid”. I was not aware of these until now, but they are not the same as the linoleic acids found in polyunsaturates.
Also, some polyunsaturated fats are associated with increased risk, such as arachidonic acid. But… it sounds like that’s the polyunsaturated fat you mostly get from meat sources, not plants.
And as you may suspect, plain old “linoleic acid” has the lowest association with ASCVD risk. “Butyric acid” (a saturated fat! 😮) also is associated with similar lowered risk, but this is only found in trace amounts and makes up only a tiny proportion of people’s diets.
I have learned so much from Simon and are forever grateful ☺️ ❤
Rubiish theories
Cate Shanahan says PUFAs are bad for you. I believe her,.
It’s not a naturalistic fallacy that seed oils are bad for you, it’s that linoleic acid keeps adipocytes insulin sensitive even when they are full, they spill fat into the blood and cause systemic insulin resistance, liver never stops gluconeogenesis because the cells are insulin resistant, that causes type 2 diabetes. Linoleic acid comprised cardiolopin gets oxidized by the cytochrome c iron molecule, this kills the mitochondria and complex 1, which is where NADH inputs go through, (many NADH sources are carbs). Linoleic acid comprised LDL gets oxidized easily too. It’s all because of the double bonds on the 9 and 12 positions.
I think it's not an easy way to define what is ultimately good.
IMO, SFA carries rich nutrients not found in quantities in cooking oil, they are also suppose to be a source of energy and make one satiated. The problem is sugar and refined carbs in high quantities in today's diet has kill the value of SFA. PUFA is recommended to reduce risk of heart disease but unfortunately the high inflammation of Omega 6 couple with sugars are cause of heart disease. Then now the role of reducing inflammation by putting in more Omega 3. SFA has loses its value of being the source of nutrients, energy and keeping one satiated. Try cooking whole food with some ghee and butter; refrain from snacking and taking refine carbs and sugars. We can do so much better without sugar and PUFA oils
I think PUFAs caused my FUPA
There are also equal or more papers that prove that pufas are dangerous for health. So I don’t agree with you. Small quantities okay but not as a regular usage.
Deaths from heart attacks are down since 1960 because we have significantly reduced the amount of smoking cigarettes we do as a population. We also have much better techniques and technology to prevent death from heart attacks (CPR, oxygen, defibrillators, ambulances and life flight helicopters, much better education, etc).
That is exactly the point, it's useless to spot ecological correlations between two variable and deduce a causative relationship.
@@TheProofWithSimonHill You are constructing a strawman when you say the PUFA argument is based on ecological correlation. There is plenty of higher quality evidence.
Pufa 🎉 for more torpor, because the fat that we are making in our own are toxic 😮😭.
Complaining about ultra processed food being bad but pretending UPF isn’t the single biggest driver of serum linoleic acid is quite at odds
1. those pufas are damaged. 2. Ultra processed foods are driving caloric overconsumption / energy toxicity.
More PUFAs than SFA is shown to be healthier, but what about PUFAs compared to something like Dr. Esselstyn's diet of NO added oils at all?
There are studies showing that high intake of seed oils, particularly those high in omega-6 fatty acids, can induce insulin resistance.
For example, a study published in the American Journal of Clinical Nutrition found that a diet high in omega-6 fatty acids from safflower oil led to increased insulin resistance in overweight and obese postmenopausal women.
Another study published in the Journal of Clinical Endocrinology and Metabolism found that a diet high in soybean oil, which is also high in omega-6 fatty acids, led to insulin resistance and increased fat storage in mice.
Insulin resistance automatically increase fat in the body of mammels and humans.
We can, of course, selectively look at single studies in humans and one study in mice, or we can look at the balance of evidence by combining many clinical studies instead. Here is a meta-analysis of RCTs showing no weight gain as long as calories are not intentionally increased. In fact, when looking specifically at replacing saturated fat, canola oil reduces weight.
www.sciencedirect.com/science/article/pii/S2161831322007037
@@TheProofWithSimonHill With these kind of studies any result can be created by STATISTICAL MANIPULATION!
They have no value in reality!
@@TheProofWithSimonHill Canola oil has about half the concentration of PUFA as safflower oil. Despite popular conception it is only moderately high in PUFA. Safflower oil and corn oil are much higher in PUFA.
People aren't any more sedentary actually. Believe it or not, people used to sit around and read, write, draw, play games, knit etc... People seem to glamorize/exaggerate their work and energy output. maybe if you were a lumberjack or had a large farm, but most people didn't work those sort of jobs. There's no way vegetable oils are good for you, haven't you seen how they're made? You're reading the studies paid for by seed oil companies. He's doing the old appeal to authority like Layne Norton or whoever where he desperately wants to look like an 'expert'. You're just some dude with a mullet pal
Nice comment!
Why do the Ray Peat people believe PUFAs are bad? I love nuts and seeds (I HATE the tiny servings size and the high calorie density though)
But I don't know why Peatarians are against nuts and seeds
If you are in good health a few seeds or nuts are not goin to do harm to your metabolism, the problem in excessive consumption polyunsaturated fats omega 3 and 6 in the form of oils that had been extracted using press or chemicals. Polyunsaturated fats have a tendency to oxidase easily vs saturated fats like coconut oil and in time they can slow down body metabolism
@@AL-sb9ch but aren't nuts and seeds better because they're a whole food? I don't eat any oils not even coconut oil , I eat nut butters once in awhile, nuts and seeds I soak them in water for a few days before I eat them , other than having osteoporosis I would say I'm in decent health
They’re not talking about nuts and seeds in their whole from.
this seems to gloss over the what should be the most important aspect of this discussion, namely the omega-6/omega-3 ratio in PUFA. It seems like PUFA are good for health if those are in balance, but bad for health if too strongly tilted toward omega-6.
Focusing on ratios is not very important. See here: www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.108.191627
"Advice to reduce omega-6 PUFA intakes is typically framed as a call to lower the ratio of dietary omega-6 to omega-3 PUFAs. Although increasing omega-3 PUFA tissue levels does reduce the risk for CHD, it does not follow that decreasing omega-6 levels will do the same. Indeed, the evidence considered here suggests that it would have the opposite effect. Higher omega-6 PUFA intakes can inhibit the conversion of α-linolenic acid to eicosapentaenoic acid, but such conversion is already quite low, and whether additional small changes would have net effects on CHD risk after the other benefits of LA consumption are taken into account is not clear. The focus on ratios, rather than on levels of intake of each type of PUFA, has many conceptual and biological limitations."
@@TheProofWithSimonHill contra to what you said here, speaking about omega-6 and omega-3 competing for enzymes and the need to limit the former to get the benefits of the latter. ruclips.net/video/QWTEnGoFRRg/видео.html
@@happyhealthylife4everwhat do you mean by the "omega 6 arachidonic acid system is saturated?" Even when linoleic acid is increased by 6 fold or reduced by 90% there is no physiologically relevant increase in AA production from LA. As the 2009 paper by Harris et al reference, the conversate is about than 0.2%. So what you're saying makes no sense and is not in line with the evidence. No one is saying omega 3 isn't important but to fixate on the ratio is just majoring in the minors and does not seem to matter much at all.
@@happyhealthylife4ever I'll give it a listen next time I drive to work
@@happyhealthylife4ever if you can provide the evidence for that claim then I'll put more consideration in it but as of right now I don't believe what your saying about health deterioration from oils is in any way shape or form substantiated by the totality of human evidence nor do I believe the more rapid rise in blood LA to be a problem in the slightest given tissue level of LA is inversely associated with various health outcomes (Marklund et al 2019).
Heart disease is still the number one, leading cause of death in the world. The reason why it's decreased since the 1960s is because death rates have gone down, in general. I may be a carnivore, and thus don't quite align with Simon's perspective on food, but I do appreciate the work and effort he puts into his content. Referring to studies like these can be quite misleading, though.
I specifically brought that up as an example of why making such arguments based on ecological evidence is poor.
@@TheProofWithSimonHill Ah, that's my bad. I didn't have time to watch the entire video during my lunch break, so I skimmed through parts of it instead.
People eat too much fat and too much protein. Giving up oil and butter, then relying on getting fat from whole foods is so much better. I've done that for eleven years and am doing well.
How is butter not a whole food?
@@sircruse1422 it's a concentrated extract of milk
@@allencrider oh I see, so because it’s processed, google says it’s a whole food though :/ but I guess it’s really just not much more than just a label
Excellent!!!!!! ❤❤❤
Please have Mary Ruddick on the show 🙏😊💗
We'll look into inviting her.
@@TheProofWithSimonHill Thank you 🤍 Cannot wait! 😊
Also ask Dr Paul Saladino onto the show.
The weakest data is Simon Hill saying “he’ll post studies” and chicken out
Full episode with studies in the description here 😉 ruclips.net/video/qxw0hBiiOpw/видео.html
Feel dumb now?