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September 08 2001
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Flaxseed for Breast Cancer

 

Ground flaxseed may contain compounds that protect postmenopausal women from breast cancer Blood levels of specific estrogens linked to increased risk for breast cancer decreased significantly with flax supplementation.

Previous studies have suggested that naturally occurring compounds called phytoestrogens, work to lower levels of circulating estrogens linked to breast cancer. Flaxseed is especially high in one such phytoestrogen, lignan, which is thought to inhibit estrogen production.

Researchers tracked blood levels of two cancer-related estrogens, estrone sulfate and estradiol, in a group of 28 postmenopausal nuns over the course of one year. On top of their regular diet (which was similar for all the women studied), the nuns received daily supplements of either 0, 5 or 10 grams of ground flaxseed.

Levels of the two circulating estrogens fell significantly among women taking the supplements, but remained stable in the non-supplement group.

Annual Meeting of the American Chemical Society August 29, 2001



Dr. Mercola Dr. Mercola's Comments:

Flaxseeds have also been useful in the treatment of prostate cancer. As I said when that item was posted in July:

Ground flaxseeds are a useful addition to most people's diet. The unfortunate problem though with using them for most people is that when one has elevated insulin levels, the delta six desaturase enzyme is severely inhibited.

I do not recommend flax seed oil at all as it is far to perishable. Five years ago, I used to recommend it to nearly all my patients and I noticed the majority of them could not tolerate it.

One can obtain the ALA (alpha linolenic acid) from the freshly ground flax seeds (in a coffee grinder). If the seeds are freshly ground very little oxidation will occur to damage this fragile fatty acid.

This enzyme is responsible for converting the alpha linolenic acid (ALA) in flax to longer chain fats (like EPA and DHA) and it is easy to develop an excess of ALA in one's system, which is counterproductive.

Who has elevated insulin levels?

Most Americans, as just about anyone who is overweight (60% of the US population) has excess insulin, as do most all those with high cholesterol, high blood pressure or type 2 diabetes.

So the flax should be used sparingly and probably alternated with other ground grains, like sunflower, sesame and pumpkin, which will help to balance the omega six and omega three ratios.

Pumpkin seeds have other fats in them which are likely to be particularly beneficial for prostate health.

The seeds should be freshly ground in a coffee grinder and I prefer to have them in my freshly produced vegetable juice pulp. Most people who juice throw away the pulp, but I am convinced it is a valuable source of nutrients and should be consumed like a porridge while drinking your fresh vegetable juice.

Drink your juice and eat your pulp.

I don't recommend the use of flaxseed oil however, particularly because of its instability. Five years ago, I used to recommend it to nearly all my patients and I noticed the majority of them could not tolerate it.

This is despite the fact that they were using two of the best brands of flax oil in the country (Omega Flow and Barleans). I came to the conclusion that the nausea they were experiencing was a giant clue from their body and subsequently concluded that most people do not do well with flaxseed oil, which is why I no longer recommend it.

Related Articles:

Flaxseed (Not Flax Oil) Benefits Prostate Cancer

Flaxseed Improves Blood Glucose Levels

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