PUFA essential nutrient, or toxic? - by Ray Peat Phd

Unsaturated fatty acids: Nutritionally essential, or toxic?

A R T I C L E
by Ray Peat Phd

Unsaturated fatty acids: Nutritionally essential, or toxic?

In 1929 George and Mildred Burr published a paper claiming that unsaturated fats, and specifically linoleic acid, were essential to prevent a particular disease involving dandruff, dermatitis, slowed growth, sterility, and fatal kidney degeneration.

In 1929, most of the B vitamins and essential trace minerals were unknown to nutritionists. The symptoms the Burrs saw are easily produced by deficiencies of the vitamins and minerals that they didn't know about.

 

What really happens to animals when the "essential fatty acids" are lacking, in an otherwise adequate diet?

Fish oil - "more is not better", Chris Kresser

When it comes to fish oil, more is not better

October 25, 2010 in Food & Nutrition, Heart Disease | 95 comments

By Chris Kresser - The Health Sceptic

Article summary

• The benefits of fish oil supplementation have been grossly overstated
  
• Most of the studies showing fish oil benefits are short-term, lasting less than one year
• The only fish oil study lasting more than four years showed an increase in heart disease and sudden death
• Fish oil is highly unstable and vulnerable to oxidative damage
• There’s no evidence that healthy people benefit from fish oil supplementation
• Taking several grams of fish oil per day may be hazardous to your health

A new study was recently published showing that 3g/d of fish oil in patients with metabolic syndrome increased LDL levels and insulin resistance.

Too much fish oil can wreak havoc in your body

Omega-3 fatty acids are highly vulnerable to oxidative damage. When fat particles oxidize, they break down into smaller compounds, like malondialdehyde (MDA), that are dangerous because they damage proteins, DNA, and other important cellular structures.

Flax, shun it - Rancid Fats and Anti-Nutrients

Integrated Supplements Blog: From Rancid Fats to Anti-Nutrients - More Reasons to Avoid Flax

With flax, it seems that (as is so often the case in the marketing of health foods) we’ve only been given the part of the story which sells products, and not the part of the story we need to make a truly informed decision.

In the previous Integrated Supplements Blog post, we began to take a look at some of the potential problems associated with the regular consumption of flax–based products. We showed you a study which revealed that people consuming flaxseed meal suffered significantly reduced antioxidant status – possibly a result of the nearly unavoidable presence of rancid, oxidized fats found in almost all flaxseed–containing items.

Related Articles:

• Some Reasons to Avoid Flaxseeds - Study Finds Flaxseeds Weaken Antioxidant Defenses
• Rancid Fats and Oxidative Stress - Strategies To Reverse Aging - Part 1
• Combating Oxidative Stress - Strategies to Reverse Aging - Part 2
• The Anti-Aging Diet Part 1 - Can Some Foods Accelerate Aging?

Flaxseed and Cardiovascular Health : Journal of Cardiovascular Pharmacology

Flaxseed and Cardiovascular Health
by Prasad, Kailash MD, PhD, FRCPC, FACC, FICA, FIACS

Journal of Cardiovascular Pharmacology:

November 2009 - Volume 54 - Issue 5 - pp 369-377

doi: 10.1097/FJC.0b013e3181af04e5

Invited Review Article

Abstract

In conclusion, flaxseed, FLC, and SDG, but not flaxseed oil, suppress atherosclerosis, and FLC and SDG slow progression of atherosclerosis but have no effect on regression. Flaxseed oil suppresses oxygen radical production by white blood cells, prolongs bleeding time, and in higher doses suppresses serum levels of inflammatory mediators and does not lower serum lipids.

PUFA according to Ray Peat - Matt Stone review

180 Degree Health: Ray Peat - PUFA

Matt Stone discussing:
- damaging effect of PUFA
- poor health on low carb
- health improvement on abandoning low carb

Fat - metabolism, Vaughn Grey

 Vaughn Grey - in a compressed 27 minute talk he:
- explains some of the shortcomings of the"calories in-calories out" thesis
- discussed the accumulation of toxic fat
- outlines how "whole health" can impact on fat burning, and
- gives human evolutionary insights & biological design:

Vaughn Gray holds a BA in Biology and Philosophy from Amherst College and an MA in Human Sciences from Oxford University where he studied as a Rhodes Scholar. He has been certified as a fitness instructor by the National Academy of Sports Medicine (2003-2007), and holds a certificate in Integrative Nutrition from The Institute for Integrative Nutrition. He is the recipient of numerous academic awards, including the Wilma Crowther award for top Human Scientist at Oxford, and has published basic science research in several scholarly publications. He also studied medicine at the Weill Cornell Medical College of Cornell University in New York from 2005 through 2007 before withdrawing to pursue his interests in holistic health.

Inflammation - Toxic Fat, Dr. Barry Sears on CBN

Creator of the Zone Diet, Dr. Barry Sears on inflammatory "toxic fat":



also on "Silent Inflammation"see here: http://youtu.be/wUGP0eGWOG0