Dr Paul Mason obtained his medical degree with honours from the University of Sydney, and also holds degrees in Physiotherapy and Occupational Health. He is a Specialist Sports Medicine and Exercise Physician.
Dr Mason developed an interest in low carbohydrate diets in 2011. Since then he has spent hundreds of hours reading and analysing the scientific literature.
For a number of years, Dr. Mason has been applying this knowledge in treating metabolic and arthritis patients who have achieved dramatic and sustained weight loss and reductions in joint pain.
My 7 unpopular keto opinions – These are just my opinions, feel free to disagree I am just sharing what I think and feel after eating this way for 3 years. I love this way of eating, it has changed my life.
Are vegetable oils healthy? Can they help us reduce heart disease and live longer? Or do they trigger inflammation and cause cancer? Arguments have been made from both sides.
Now, a new meta-analysis provides more evidence for putting them in the “healthy” category, or at least in the “not being harmful” category. The paper was a review of multiple observational studies and concluded that a higher intake of linoleic acid is associated with lower risk of heart disease and death.
Can this study prove that linoleic acid is helpful and protective? No, it cannot. But can it suggest that maybe vegetable oils aren’t uniformly toxic and harmful to the general population? That seems like a more reasonable conclusion.
As a refresher, linoleic acid is a polyunsaturated fatty acid (PUFA) commonly found in industrial seed oils and highly processed foods, but also found in smaller amounts in natural foods like nuts and seeds. PUFAs have attracted attention recently as a potential contributor to chronic inflammation, insulin resistance and a possible increased risk of cancer.
As we reviewed in our evidence based guide on vegetable oils, the data are conflicting regarding their long-term impact on health. Mechanistic studies suggest they increase inflammation, reactive oxygen species, and if you have ever seen vegetable oils being made, you can see how they are at odds with our evolutionary history. Despite this, clinical trial evidence does not show a clear increase in inflammation, nor does it show a clear increased risk of cancer or other chronic medical conditions.
So, what does this new review show? For starters, it was a large statistical undertaking including 38 studies and 811,000 people assessed by dietary assessment (mostly food frequency questionnaires which we have commented on previously regarding their inherent inaccuracies) and 65,000 people assessed with biomarker measurements such as linoleic acid concentrations in fat cells. Those who consumed the highest amount of linoleic acid had a modest 13% relative reduction in risk of all cause mortality and heart disease death compared to the lowest consumers.
As we have mentioned before, nutritional observational studies with small risk benefits are weak studies that are complicated by potential errors, and therefore should not be used to conclude that something is beneficial or not. However, can a study like this prove, or at a minimum suggest, that linoleic acid is not generally harmful? That is the much more interesting question surrounding this study.
In light of this new review, the claim that PUFA oils are harmful may be getting weaker.
Personally, I will continue to eat whole, naturally occurring foods and few processed oils and recommend my patients do the same. But do I have strong evidence to support that? No, I don’t. But I also do not have strong evidence to say we should eat more PUFAs. Thus, this study is interesting but too weak in quality to move the needle.
In “What if we’re wrong about type 2 diabetes” we look at mainstream healthcare messages that say type 2 diabetes is a chronic, progressive disease that can’t be reversed. But is this true? Do people with type 2 diabetes have to suffer for the rest of their lives? Are there ways to reverse this disease?
Dr. Benjamin Bikman, an expert in metabolic disorder research has so much insight to share on protein, insulin and glucagon on a low carb diet and how different it is on our physiology then when consuming protein on a Standard American Diet (SAD) or high carb diets. We explore optimal fat burning, prioritizing protein intake as well as how keto lowers insulin so that the metabolism can be boosted, if gluconeogenesis is demand or supply driven, as well as the actual caloric value of ketones!
Do you have aches, pains, gout, kidney stones or other symptoms that are getting worse instead of better? Are you eating and living well but confused because you still feel lousy?You might have something you’ve never heard of – oxalate poisoning.
Sally Norton (@sknorton), MPH is an expert in oxalates – a plant toxin found in many common “health” foods such as spinach and almonds that can cause many health disorders. Sally has a degree in nutrition from Cornell University and a Masters of Public Health from the University of North Carolina. She managed a five-year, National Institute of Health-funded program at the UNC Medical School.
Sally & I discuss:
Her background and health journey
How she found out about oxalates
What oxalates are, why they’re harmful, and how they affect our bodies
Sources of oxalates in foods
My personal oxalate detox experience
How to detox from oxalates
And much more!
Highest Oxalate Foods: Spinach, Potatoes, Soy & Great Northern Beans, Almond Milk, Nuts, Carrots, Celery, Beets, Chocolate & Black Tea.
Today Dr. Mike Eades joins me for a really great and comprehensive interview. I’ve been following his work for many years and always enjoy his presentations that can be found on YouTube. We got to hang out all weekend in Denver a little ways back and I got to see another of his amazing presentations live talking about what humans evolved to eat and what happened as we strayed away from that diet. It’s shocking stuff and sure to ruffle the feathers of every single mainstream doctor, dietitian, and nutritionist around. We go over this and much of his other work in this interesting episode.
Dr. Michael Eades is a physician who has over 30 years of experience in bariatric, nutritional, and metabolic medicine. He is also the co-author (with his wife Dr. Mary Dan Eades) of 14 books in the fields of health, nutrition, and exercise over the last several decades––among them the New York Times best seller Protein Power and The Protein Power LifePlan which laid out one of the first nutritional concepts of the paleo lifestyle.
[5:05] Some noted evidence of meat eating since the dawn of man until now from Dr. Eades.
[13:30] Our brains are our weapon.
[20:20] Hunter gatherers’ health vs agriculturists.
[26:05] How the Egyptians’ wheat based diet destroyed their health.
[40:20] Eades’ take on the history of obesity in the US.
[49:35] How PUFAs play a role in the obesity crisis.
[58:10] The role incretins play in the pathogenesis of type 2 diabetes and obesity. Watch this presentation if you want to dive deeper and see the graphics that go along with it. https://www.youtube.com/watch?v=qMO-5mq3crU
[1:11:30] Why he advocates alternate day fasting.
[1:12:55] His experimentation with a continuous glucose monitor.
Dr. Chris Knobbe is an esteemed eye physician and surgeon in Boulder, Colorado and currently leads the Cure AMD Foundation. Cure AMD Foundation seeks to spread the message regarding his research that AMD (Age-related macular degeneration) is caused by “Westernization of the diet”. Luckily, he has a theory that macular degeneration, which is the leading cause of irreversible vision loss and blindness, is not only preventable but also treatable with the implementation of an ancestral diet. He came to this conclusion when he left his full-time practice to commit his time to numerous years of full-time investigative research on nutrition. He now shares his breakthrough findings on this and the harms of industrial seed oils through presentations across the country as well as scientific papers and books. You can learn more at cureamd.org
He did an amazing presentation in Denver recently and has really brought a lot of new information to the table when it comes to the industrial seed oils being the root of all evil! I’m not even exaggerating that much. Populations can be healthy on almost any diet on the planet until the high omega 6 seed oils come into the picture. These go along with processed foods of course, and the refined grains and sugar. But maybe the seed oils are the real X factor. Long time listeners will be familiar with this concept from episode 20 with Tucker Goodrich who did an eye opening interview on this same topic. Go back and check this one out and make sure to start at episode 1 to get the full download of all this super valuable health info.
So make sure to balance your omega 3s to omega 6s and definitely don’t eat oxidized vegetable oils which are even worse – the ones they use in deep fryers that are reused and kept at super high temperatures. Pork and chicken have gotten a bad rap in our health community, and rightly so, because they are usually super high in omega 6 compared to omega 3.
[7:07] Chris’s battle with arthritis and how he fixed it.
[9:12] Processed seed oils are the major culprit for many chronic diseases.
[10:12] Westernization of our diets.
[17:42] The rise of seed oils and why they are so harmful.
[21:42] Why omega-6 linoleic acids are so bad for us.
[25:12] The prevalence of heart disease and how seed oils play a huge role.
[33:12] In 2010, seed oils represented 32.5% of the standard american diet.
[34:32] Four major problems from vegetable oils.
[36:32] What it means when a molecule is proxidative.
[40:37] Omega-6 fats drive insulin resistance by breaking down the electron transport chain of the mitochondria.
[46:52] Toxicity and how it relates to seed oils.
[50:57] There is no relationship between total cholesterol and heart disease.
[52:47] LDL cholesterol, heart disease, and lifespan.
[54:22] 80% of all olive oils are often adulterated with cheap seed oils.
[58:52] Anecdotes of tribes who ‘should’ have chronic disease but are actually some of the healthiest.
[1:10:37] Why Chris is a fan of a low-carb diet.
[1:14:42] AMD is the third leading cause of blindness in the world.
[1:18:22] How diet affects AMD.
[1:21:17] How aging and genetics plays less of a role in AMD than some professionals think.
[1:25:24] Vitamin A, D, K2 deficiency are all driving AMD.
LDL cholesterol is one of the most controversial topics in the low carb world. On the one hand, conventional teaching is that elevated LDL is dangerous and needs to be lowered. On the other hand, otherwise healthy individuals following a low carb lifestyle have not been represented in our available data. How do we reconcile what to do?
Dr. Ron Krauss helps us understand the nuances beyond LDL-C and how we can use all the available data to help us better understand what we know and do not know about cholesterol, including LDL, HDL, triglycerides and Lp(a).
Dr Paul Mason reviews the evidence for dietary change in optimising immune health. The evidence that metabolic syndrome impairs the immune system is reviewed, and the role of dietary carbohydrate and vegetable oils discussed.
Dietary strategies to improve features of metabolic syndrome, including high blood sugar levels, high blood pressure, dyslipiaemia and obesity are discussed. Evidence that high cholesterol levels may in fact be beneficial to immune function is also presented.
The lecture finishes by looking at the consequences in poor nutrition in ventilated patients.