The #1 Most Dangerous Fat in the World!
In this enlightening video, Dr. Eric Berg dives into the world of dietary fats, highlighting the most dangerous fat you need to eliminate from your diet immediately. Unraveling the complexities of fats, he explains the differences between saturated, monounsaturated, and polyunsaturated fats, and how their chemical structure influences your health.
Dr. Berg warns that partially hydrogenated fats—or trans fats—are the worst culprits, significantly contributing to chronic health issues due to their instability and the harmful byproducts they produce. He also discusses why widely accepted “heart-healthy” oils, like canola and soybean oil, may be more harmful than previously thought.
Concluding with a selection of healthier fats, such as cold-pressed avocado and olive oil, the video empowers viewers to make informed dietary choices. By understanding which fats to avoid and which to embrace, you can protect your health and well-being. Don’t miss this crucial information on how fats impact your body! Watch now!
Watch the video by Dr. Eric Berg DC
Author Video Description
Harmful fats can be incredibly damaging to your health! Find out about the most dangerous fat to remove from your diet immediately and which healthy fats to replace it with. Ditch the unhealthy fats today!
Find out which oils to cook with and which ones to avoid here:
▶️ https://youtu.be/hmkoFDMAvkc
Don’t miss these videos for more on how fat impacts your health!
▶️ https://youtu.be/hTYTC62RCqM
▶️ https://youtu.be/MuYvGyNXvPk
▶️ https://youtu.be/FjfyBJcyoJI
0:00 Introduction: The worst fats for health
0:19 Unhealthy fats explained
0:53 Monounsaturated and polyunsaturated fats
2:02 What are hydrogenated fats?
3:11 Saturated fat
3:50 Side effects of unhealthy fats
8:57 The most dangerous fat
11:48 The benefits of healthy fat
What are the unhealthiest types of fats? Let’s take a look. Saturated fats are very stable and don’t react much to oxygen because they don’t have double bonds.
Fats with double bonds are more unstable and react more readily with oxygen, resulting in increased oxidation. Monounsaturated fats have one double bond, while polyunsaturated fats have many double bonds. More double bonds mean more oxidation.
Avocado and olive oil are monounsaturated fats, so they’re moderately stable. Polyunsaturated fats, such as corn oil, sunflower oil, safflower oil, soy oil, canola oil, and cottonseed oil, contain many double bonds, so they’re unstable and prone to significant oxidation. Hydrogenated oils are unsaturated fats that have been chemically turned into saturated fats.
Saturated fats such as lard, tallow, and butter are solid at room temperature and are very stable.
Although they are unsaturated fats, fish oil and cod liver oil have potent anti-inflammatory benefits and omega-3s, but can sometimes be rancid due to their instability. Be careful where you source them!
Heat and light create toxic byproducts in unsaturated fats called aldehydes. These toxic compounds destroy your DNA, lodge in your cell membranes, and damage the insulin receptors on the surface of your cells. They can also make your cells stiff and fragile.
For years, saturated fats have been demonized, and unsaturated fats have been recommended! This has also occurred with other foods, such as red meat and grains.
Check out this comprehensive list, which ranges from the most harmful fats to the healthiest. Number 1 is the most dangerous!
1. Partially hydrogenated fat
2. Hydrogenated fat
3. Reused PUFA frying oil
4. Soy oil
5. Corn oil
6. Sunflower oil or safflower oil
7. Cottonseed oil
8. Canola oil
9. Grapeseed oil
10. Rice bran oil
11. Peanut oil
12. Refined avocado oil
13. Refined olive oil
14. Conventional lard
15. Conventional tallow
16. Coconut oil
17. Grass-fed butter
18. Cold-pressed avocado oil
19. Cold-pressed, extra-virgin olive oil
Dr. Eric Berg DC Bio:
Dr. Berg, age 60, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the Director of Dr. Berg Nutritionals and author of the best-selling book The Healthy Keto Plan. He no longer practices, but focuses on health education through social media.
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Disclaimer:
Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients, so he can focus on educating people as a full-time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose, and it is not a substitute for a medical exam, cure, treatment, diagnosis, prescription, or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.
#health #keto #ketodiet #weightloss #ketolifestyle #intermittentfasting #lowcarb
Thanks for watching! Now you know about the unhealthy fats to avoid and the healthy fats to add to your diet. I’ll see you in the next video.
Video “The #1 Most Dangerous Fat in the World!” was uploaded on 12/14/2025 to Youtube Channel Dr. Eric Berg DC



































Cereal boxes lie
Whew! I thought he was gonna say Oprah.
A thorough fundamental explanation of why processed oils are not to be eaten and to be avoided at all costs. Thanks for keeping me from leaving the planet, Doc.
Everything in this video aligns with what I've been taught in chemistry and biology classes in secondary/high school around 2010 (in the Netherlands). And yes it took a while for this information to become known to the general public, and still a lot of misconceptions are present. But this has been generally taught well in schools for the last decade or two.
i love learning about this stuff. thank you!
Thanks Dr Berg you the best 💯👍
Visited an eight generation owned olive grove in Montenegro this past September. I learned so much about the benefits of quality grown and processed Extra Virgin Olive Oil.
Wow, thank you for this beneficial information 😊❤
God Bless you doctor
Please can someone with low blood presure take magnesium glycenate?
Looks like he covered the worst oils. When do we get to see the best oils. Just dont fry any oil. Frying BAD.
what do you think about peanut oil
I am om the 15th sec of this video. let me guess pam oil?
Thanks Doc
Hello drBerg. IT'S SO INSIGHTFUL ANALYSIS. THANKFUL DR BERG ❤
Thank you, Dr. Berg! Grass fed milk, yogurt and butter are the best! Organic Valley is my favorite, but I wish they weren't so expensive.
ty
What about palm oil? Where would be on the list?!
I run that crap cooking oil in my diesel
electrons staiblize they put a fence around activitys then when there released it causes reaction
Your healthy aging secrets video motivated me hugely. I'm 74 and want to enjoy retirement fully. Implementing small changes like daily walks from your other videos. Feeling vibrant and optimistic. Best channel for seniors!
"Youre not gonna need chemistry or physics." Proceeds immediately to give a masterclass in chemistry and physics. I love you doc! 😂 Shoving knowledge without them even knowing what hit them.
Real butter and tallow is the lubricant I used for cooking. That and bacon grease. Beef tallow is becoming my favorite.
Thank you, Dr Berg. I am doing great and I will do even better.
These ai generated visual aids are a bit strange 😅
I am looking for an easy, healthy mayonaise recipe?
Don't seed oils have their place with olive, avocado and coconut as long as they're organic, unheated and not rancid or genetically modified?
Wait, so which oils can I heat up for cooking?
The best take-away from this is to keep your intake of oils to a minimum, keep your anti-oxidants high, and avoid fried foods altogether.
Trans are the danger…. Got it ✅
I'm going in to surgery and would love tips on diet and fasting before and after to make the whole thing easier overall. Thanks Dr berg keep fighting there narrative.
Sorry this was the most unclear and negative video I've ever saw from this doctor. At the end he made it seem like every oil cannot be cooked with cuz it's too hot! Would you say that we shouldn't cooookkk at all? He also mentioned only having cold pressed Olive and avocado oil. I've never seen anything that's not? What the hell was this all about? Maybe the doctor needs to regroup on this issue, calm down, and wait until he has a clear understanding and opinion.
Where is desi ghee?????
The problem with these and other “doctor” videos are they never give you the information needed. What should you use when heating at high temps??? Etc….
That would explain why the taste of commercial mayo has drastically declined in the last couple of decades. Avocado and soy oil both are terrible tasting.
Costco has improved on offering cleaner food products which are displayed as green colored price tags, yet Sam's Club has slowly been offering better cleaner products yet Costco has taken the lead by far in the Phoenix area.
so what oil can i use to cook (like cooking a steak)?
The poisoned our food and sold us their poison.
What about unrefined, cold pressed sunflower oil?
basicly any fried food is NO no matter what oil you use.
Bless you, Dr. Berg. This video actually made me cry.
What about Mustard Oil, cold pressed and fresh. Is that good? what about cooking in coconut oil?
Avoid hydrogenated oils and seed oils .