Polyunsaturated fat etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster
Polyunsaturated fat etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster

5 Kasım 2014 Çarşamba

Fibromyalgia: It's the food, again! (probably).

From http://stickmancommunications.co.uk/Keyring-Card-Fibromyalgia

Serendipity strikes again! On Facebook, I saw https://www.facebook.com/PaleoDietNewZealand/posts/763653980371516 . That linked to Fibromyalgia and non‑celiac gluten sensitivity: a description with remission of fibromyalgia.

For people unfamiliar with scientific terms, here are some definitions:-
Non-celiac gluten sensitivity: A reaction to gluten, not due to Celiac (Coeliac in the U.K.) Disease.
Remission: (medicine) An abatement or lessening of the manifestations of a disease.

So, is Gliadorphin-7 (formed during the digestion of gluten) to blame?
Probably.

Could Beta CasoMorphin-7 (formed during the digestion of A1 cow's milk) also be a problem?
Possibly.

Is Increased/Excessive Intestinal Permeability allowing the above large molecules to pass through insufficiently tight junctions?
Definitely, maybe.

Is there really no cure for Fibromyalgia? It's possible to tighten-up insufficiently tight junctions. Insufficiently tight junctions can be caused by:-

1. Insufficient sun exposure, causing hypovitaminosis D. See http://www.ncbi.nlm.nih.gov/pubmed/?term=%22Vitamin+D%22[All+Fields]+AND+%22tight%20junction%22+AND+hasabstract[text]

2. Excessive consumption of oils high in polyunsaturated fatty acids. See Dietary Fat Can Modulate Intestinal Tight Junction Integrity.

3. Excessive consumption of Wheat. See http://www.ncbi.nlm.nih.gov/pubmed/?term=%22Wheat%22[All%20Fields]%20AND%20%22tight%20junction%22[All%20Fields]%20AND%20hasabstract[text]%20AND%20%22humans%22[MeSH%20Terms]

4. Excessive exercise. See Shedding Some Light on the Leaky Gut <> Exercise Connection. Plus: 20+ Things You Should or Shouldn't Do to Protect and Restore the Integrity of Your Intestinal Wall.

5. Lack of dietary Sulphur. See Sulphation and Autism: What are the links? A good source of sulphate is Epsom Salts.

See also Physiology and Immunology of Digestion.

And finally...
If a science person ever tells you "Increased/Excessive Intestinal Permeability a.k.a. "Leaky gut" just doesn't exist because, you know, I'm a scientist.", point out that it's an Appeal from authority fallacy, and demand that they provide high quality evidence to support their statement.

Because, you know, I'm a retired Electronic Engineer! :-)

4 Ağustos 2014 Pazartesi

Historical perspectives on the impact of n-3 and n-6 nutrients on health, by Bill Lands.

Here's Fig. 1. from http://www.sciencedirect.com/science/article/pii/S0163782714000253
Relating tissue HUFA balance with blood cholesterol and heart attacks. Results from the 25-year follow-up in the Seven Countries Study [35] were discussed in an earlier review [10] which noted that “Food energy imbalances which elevate blood cholesterol may be fatal only to the degree that omega-6 (n-6) exceeds omega-3 (n-3) in tissue HUFA. Such evidence raises questions about the hypothesis that blood cholesterol levels cause CHD.” Northern Europe and Southern Europe have abbreviations “No.” and “So.”, respectively. The Figure is reprinted with permission of the publisher.

Hat-tip to Dr. Thomas Dayspring for Tweeting this review.

Fig. 1 is interesting, as it shows a significant association between 25-year CHD mortality and Serum Total Cholesterol for every region except Japan. What's different about Japan, compared to Northern Europe, USA, Serbia, Southern Europe & Crete?

According to Measuring Blood Fatty Acids as a Surrogate Indicator for Coronary Heart Disease Risk in Population Studies , Philippines & Iceland have lower % linoleic acid than Japan. Where's the CHD vs TC data?

Could another difference be that the Japanese eat rice, a relatively intact grain, instead of foods made from wheat grain dust (i.e. flour) as their main source of dietary carbohydrates?

See also Using 3–6 differences in essential fatty acids rather than 3/6 ratios gives useful food balance scores , and Omega 3-6 Balance Score.

19 Haziran 2013 Çarşamba

Completing the trine: Which are the safest fats?

First, watch this video by Chris Masterjohn.

Diets very high in pufas (polyunsaturates) are not beneficial to heart health or longevity. Flora? No thanks!

Here's a chart. The beige & grey bars represent pufas (omega-6 & omega-3).
Comparison of dietary fats
The yellow bars represent monounsaturates and the orangey-red bars represent saturates. I consider these to be harmless, as long as you don't go mad and eat them in such large amounts that you gain weight.

Bearing in mind the information in the video, plus the information in Fats: Spawn of Satan or Dogs' Doodads? , I use only fats from the bottom 6 for cooking (olive oil and butter, actually).

Flaxseed oil can be used as an omega-3 supplement for vegetarian/vegan women, as omega-3 pufas are as rare as rocking-horse poo in most foods (apart from oily fish).

Non-vegetarian/vegan people can get their long-chain omega-3 pufas (EPA & DHA) from oily fish. As vegetarian/vegan men barely produce any DHA from the omega-3 in flaxseed oil, they should get it from algal DHA supplements. See Extremely Limited Synthesis of Long Chain Polyunsaturates in Adults: Implications for their Dietary Essentiality and use as Supplements.