Showing posts with label flax. Show all posts
Showing posts with label flax. Show all posts

Monday, April 15, 2013

Article in Chicago Tribune

Since the Kentucky debate on hemp, when the issue was aired in the LA Times and the NY Times,
there has been a media blackout, despite several states - Minnesota, Missouri, Maine, New Hampshire, West Virginia, Hawaii - joining the fight.  An April 10 article in the Chicago Tribune Lifestyle section mentions it, along with other seeds, which are interesting enough to include; article is by Andrea Donsky and Randy Boyer
 
 
Seeds are a crucial food source for birds, squirrels, livestock and other animals, especially during winter. For humans, edible seeds provide a delicious, nutrient-packed punch to meals and snacks, and are the source of most of our cooking oils, as well as some spices and beverages.

Seeds are quite high in calories because of their natural oils but don't let that dissuade you from enjoying them. Their nutritional value is worth every calorie. A few interesting edible seeds that top the nutrient charts are chia, flax, hemp and pumpkin seeds.
Chia Seeds

While most of us remember the "Ch-ch-ch-chia Pet" as an '80s gimmick, the ancient plant is actually regarded as a superfood, with many clinically proven health benefits.

Chia, Salvia hispanica, a plant belonging to the mint family, was so highly recognized by the Aztecs that it was often used as currency. The powerful seeds, referred to as "running food," sustained Aztec runners, hunters, traders and warriors on long expeditions, often as their only source of nourishment.

Today, experts suggest that chia is one of the most nutritionally complete foods found in nature. In addition to being an excellent fiber source (mostly insoluble, which creates bulk for stool), chia is a rich plant-based source of Omega-3 fatty acids, consists of about 20 percent protein, and contains high levels of antioxidants, calcium, magnesium and iron.

Research has shown that chia has enormous potential to prevent and treat cardiovascular disease and Type 2 Diabetes. It can lower blood sugar (glucose) after a meal, reduce inflammation (C-Reactive Protein) and blood pressure, and is a natural blood thinner.

Since chia can absorb several times its weight in water, it helps the body maintain hydration, an important advantage to athletes and to those living in hot climates.

Gluten-free chia seed can be added -- whole or ground -- to a wide range of foods, including cereals, breads and bakery products, yogurt, desserts, pasta, and even soups and mayonnaise.

Flax Seeds

Flax has been cultivated for centuries and has been celebrated for its usefulness all over the world. Hippocrates wrote about using flax for the relief of abdominal pains, and the French Emperor Charlemagne favored flax seed so much that he passed laws requiring its consumption!

The main health benefits of flax seed are due to its rich content of Alpha-Linolenic Acid (ALA), dietary fiber, and lignans.

The essential fatty acid ALA is a powerful anti-inflammatory, decreasing the production of agents that promote inflammation and lowering blood levels of C-Reactive Protein (CRP), a biomarker of inflammation. Through the actions of the ALA and lignans, flax has been shown to block tumor growth in animals and may help reduce cancer risk in humans.

Lignans are phytoestrogens, plant compounds that have estrogen-like effects and antioxidant properties. Phytoestrogens help to stabilize hormonal levels, reducing the symptoms of PMS and menopause, and potentially reducing the risk of developing breast and prostate cancer.

The fiber in flax seed promotes healthy bowel function. One tablespoon of whole flax seed contains as much fiber as half a cup of cooked oat bran. Flax's soluble fibers can lower blood cholesterol levels, helping reduce the risk of heart attack and stroke.

Ground flax seed provides more nutritional benefits than does the whole seed. Grind the seeds at home using a coffee grinder or blender, and add them to cereals, baked goods, smoothies, and yogurt.

Store dry, whole flax seed in an airtight container at room temperature for up to a year. Ground flax seed should be refrigerated, also in an airtight container. Properly stored, it will keep for up to three months.

Hemp Seeds

Hemp has been an important resource and source of nutrition for thousands of years. While Cannabis sativa L. and other non-drug varieties of Cannabis, commonly known as hemp, have not been cultivated for use much in recent years, interest in the versatile plant has been restored worldwide.
Studies have identified hemp seed as a functional food and important food resource. Technically a nut, hemp seed contains over 30 percent fat and about 25 percent protein, with considerable amounts of dietary fiber and other nutrients. Nutritionally, hemp seed -- or hemp heart -- is best known for its polyunsaturated fatty acids (PUFAs). It's an exceptionally rich source of the essential fatty acids linoleic acid (omega-6) and alpha-linolenic acid (ALA), and a rare source of gamma-linolenic acid (GLA) and stearidonic acid.

The two main proteins in hemp seed are edestin and albumin. Both of these high-quality proteins are easily digested and contain nutritionally-significant amounts of all essential amino acids, arginine in particular.
Some of the known health benefits of hemp include increased energy, improved metabolism and immunity, reduced food cravings, and it can help lower blood pressure. Hemp hearts also contain plant sterols that have been shown to reduce cholesterol.

In the U.S., hemp seeds are used to produce food, nutraceuticals, and body care products. Natural Product stores and supermarkets sell a variety of hemp-based foods, including hemp hearts, hemp bars, hemp protein shakes, hemp milk (non-dairy beverage), and cereal made with hemp.

Pumpkin Seeds

Pumpkin seeds have 373 calories per half cup. They are a good source of minerals, including zinc, iron, magnesium, phosphorus, potassium, copper, and manganese, as well as protein and fiber. Only one ounce provides about 7 grams of protein.

Pumpkin seed oil is rich in essential fatty acids (EFAs). EFAs have many benefits, among them the maintenance of healthy blood vessels and nerves, and all tissues, including the skin.

The oil is also rich in phytosterols, plant-based fatty acids that are similar enough to cholesterol that they can replace it in the human body, contributing to the reduction of blood cholesterol levels.

Pumpkin seeds have long been associated with a healthy prostate. The protective compounds present within the seed of the pumpkin, which include zinc and phytosterols, may help to shrink an enlarged prostate. For prevention, eat a handful (about 1 ounce) of raw pumpkin seeds three times a week.

Eating seeds raw is always preferred as roasting them deteriorates or destroys many of the nutrients. Add whole seeds to hot or cold cereals, baked goods (breads and cookies), salads, steamed vegetables, or grind them up to add to burgers, chili and casseroles.

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Andrea Donsky and Randy Boyer are the co-founders of NaturallySavvy.com, a Website that educates people on the benefits of living a natural, organic and green lifestyle. For more information and to sign up for their newsletter, visit www.NaturallySavvy.com.

Saturday, January 12, 2013

Hemp seed oil vs. fish liver oil

An issue on this blog has been Omega-3 oils, which are found in hemp seed. They are also found in fish oils, and it is always suspect that fish oil is sold so heavily by the likes of Whole Foods while hemp oil is ignored. Maybe something to do with the wealth of the fishing industry? The following piece by Dionne Payn which appeared last year  in HempLifestyleMagazine.com gives us a lot of insight into this issue:



You've probably heard about how good omega-3 and 6 fatty acids are
for human health. The common advice is that to get a good supply in
your diet you need to eat oily fish on a regular basis.

Not many people know that hemp is a fantastic source of omega-3 and
6 fatty acids. But can hemp replace fish oil in the diet? Before we
get into that, let me start by giving you the lowdown on why these
fatty acids are important for good health.

What are essential fatty acids anyway?

Alpha-linoleic acid (ALA) is an omega-3 fatty acid and is known as
an 'essential' fatty acid. Our bodies can't make it so we need to
consume it through the food we eat. Our bodies convert ALA to the
longer chain fatty acids, eicosapentaenoic acid (EPA) and
docosahexaenoic acid (DHA).

EPA and DHA are very important for good health. They are powerful
anti-inflammatory compounds, which is beneficial as inflammation is
the cause of many degenerative diseases. EPA & DHA also lower blood
pressure and blood triglycerides which can reduce the risk of
strokes and heart disease.

Linoleic acid (LA) is an essential omega-6 fatty acid and is the
precursor to gamma-linolenic acid (GLA). We get plenty of omega-6
fatty acids in our diet from sources such as cooking oils (soybean,
sunflower, and canola oil), poultry and eggs.

The problem is that our intake of omega-3 fatty acids is too low,
yet our intake of omega-6 fatty acids is too high. The typical
Western diet has an omega-6 to omega-3 ratio of 15:1 but the
recommended ratio is 3:1. In a number of clinical studies, patients
with diseases such as rheumatoid arthritis and asthma have reduced
their symptoms just by eating the correct balance of omega-6 to
omega-3.

The general advice is to consume more oily fish such as mackerel,
salmon & sardines, or take supplements that contain concentrated
amounts EPA & DHA. But what if you don't want to eat fish or take
fish oil supplements?

The problem with fish and fish oils

There are a few issues to consider when deciding to consume fish or
fish oils. Firstly, there is the human health aspect. Our oceans
are polluted with methylmercury, polychlorinated biphenyls (PCB's)
and dioxins, and these contaminants are found in fish. Fish that
are predatory (eat other fish) are large and at the top of the food
chain, and so tend to contain more toxins.

Governments around the world are advising pregnant and
breastfeeding women to limit the amount of fish they eat as mercury
can cause harm to unborn babies or young children.

For the general population, the medical consensus is that the
benefits of eating fish far outweigh the risk to human health from
these toxins. However to be on the safe side, many people choose to
avoid fish and fish oil supplements altogether.

Then there is the environmental issue. In 2010, Time Magazine
published an article which asked the question, "Is the fatty-acid
craze threatening our ecosystem?" They made the point that the
market for omega-3 supplements doubled to $1 billion US dollars
between 2006 - 2010.

Environmentalists feared that menhaden, a small filter feeding
species of fish, were being overfished to produce fish oil
supplements. This led to 13 out of 15 Atlantic States banning the
fish oil company that caught 90% of the fish from their waters.

Fish oil companies strenuously deny that they are having an effect
on declining fish stocks arguing that only 1% of fish catch is used
for making supplements. However, a Canadian research group argued
that the recommended dose of 100 mg of fish oils per day was not
sustainable and would lead to fish stocks collapsing by the middle
of the 21st century.

Then there is the question of whether it is ethical to kill fish
for food or fish oil. The Vegetarian Society's website states that:

"Fish have a nervous system and pain receptors like all other
animals" and "an estimated 23% of that total catch is killed and
discarded as a result of 'incidental capture".

So if you choose not to eat fish or use fish oils, where do you get
your beneficial omega-3 fatty acids?

Plant sources of omega-3 fatty acids

Because eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)
are only found in oily fish, a lot of research has focused on how
much alpha linoleic acid (ALA) can be found in plants.

By far, the best source of ALA is flax seed (over 50%), followed by
hemp (15-20%), walnut (14%), canola (11%) and soy (7%). While ALA
can be converted to EPA & DHA in the body, the conversion between
ALA to EPA is not very efficient; even in healthy people it is only
2-5%.

The reason for this is that ALA has to be converted to a fatty acid
called stearidonic acid (SDA) before it can be converted to EPA.
The enzyme responsible for this conversion is very inefficient and
this effect is worse in the elderly, people suffering from diabetes
or obesity, and people that have a high omega-6 intake.

The good news is that if you take SDA directly, the conversion to
EPA is much easier, which hasn't gone unnoticed by big
Agri-companies. Monsanto have cottoned onto this (excuse the pun)
and have genetically modified the soya bean to produce SDA, while
BASF is working on genetically modifying canola to do the same.

Thankfully for us, hemp is a natural source of SDA and we don't
have to resort to GM foods to get a plant based source of our
omega-3's.

Hemp is one of the few sources of a rare omega-6 fatty acid,
gamma-linolenic acid (GLA). GLA has a similar chemistry to EPA and
has many of the health benefits of EPA.
Ideal dosages

According to the Good Oil Website, a daily dose of 1 tablespoons of
hemp oil will gove you 94% of your recommended daily allowance of
omega-3 and 94% of your recommended daily allowance of omega-6
fatty acids.

A comparison of flax and hemp oil

As I mentioned before, flax contains more ALA than hemp, but does
not contain SDA. Many people that try flax oil find it has a strong
aftertaste which can be a bit off-putting. Flax oil also has a
short shelf life, needs to be used as quickly as possible after
pressing and should be kept in the freezer, otherwise it turns
rancid.

In comparison, hemp contains linoleic acid (omega-6) and alpha
linoleic acid (omega-3) in the optimum 3:1 ratio for human health
and it has a pleasant nutty taste. It does need to be kept
refrigerated to preserve the quality of the oil, but is more robust
and doesn't go off as quickly as flax oil.

Summary

Omega-3 & 6 fatty acids are important for our health and longevity,
and it is great to know that we aren't restricted to consuming fish
or fish oils to get our recommended dose. If you want to avoid fish
for ethical reasons, hemp is a fantastic alternative.

Reading

http://en.wikipedia.org/wiki/Essential_fatty_acid
http://heart-disease.emedtv.com/fish-oil/fish-oil.html
http://www.professional-counselling.com/omega-3-side-effects.html
http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/mercury_in_fish?open
http://www.foodstandards.gov.au/consumerinformation/mercuryinfish.cfm
http://www.time.com/time/magazine/article/0,9171,1953700,00.html
http://www.vegsoc.org/page.aspx?pid=723#
http://ontheshelf.com/attached-file/hempandflax.pdf
http://manitobaharvest.com/articles_studies/3810/Hemp-Seed-Oil---Your-source-for-essential-fat.html
http://www.thefishsite.com/articles/654/are-dietary-recommendations-for-fish-oils-sustainable
http://www.echiumoil.eu/health-benefits.php
http://goodwebsite.wordpress.com/2009/07/

Wednesday, September 22, 2010

FLAX FOR VICTORY?
Just in on my email alerts was this one on flax getting ready to make a comeback in the US - using an enzyme they use on hemp, which is not legal in the US. This is good - flax is better than cotton - but not as good as allowing hemp to grow and starting an industry, which the US economy needs so badly. Flax is less useful than hemp as a plant, but is much better than cotton, both in its seed and its growing habit. Cotton needs lots of water and pesticides, which keeps chemical companies prosperous. So I welcome flax, as I welcome so many other useful plants on this site, many of which share hemp's legacy of being maligned or underestimated.
What I question about the article below is why it is titled "Super Seed Bumps Hemp" - this is really a piece about existing techonology used on hemp that is applied to flax - historically, the plants shared so many similarities that a treatise on one was a treatise on the other. They are not related however. They should both be accorded a place in our fields, as they once were.

Super Seed Bumps Hemp
Jenara Nerenberg
Tue Sep 21, 2010

Naturally Advanced Technologies wants the sustainable fashion industry to get loaded on flax.
Flax, the uber-fiber-packed grain, is now being touted by Naturally Advanced Technologies (NAT) as their super sustainable, commercially-viable alternative to cotton. NAT promises a cost-effective, soft fiber that will revolutionize the sustainability industry and the price points for sustainable fashion designs. The patented process called CRAiLAR was previously used on hemp, but its primary benefits are now being seen with flax. NAT bathes the flax in an enzyme that makes the fiber soft, yet keeps it strong and durable.
Flax is readily available in the United States (unlike hemp, which has to be imported). Portions of the seed often thrown out in food processing can now be salvaged and used, according to NAT. What's more, they've managed to make the fiber output soft, unlike the typically-stiff textures of hemp.
NAT says it is currently in talks with large consumer brands. "Our ability to commercialize flax fibers in partnership with brands who have such broad consumer bases means, for the first time, sustainability can be affordable to everyone," says NAT CEO Ken Barker. "With cotton prices currently at 90 to 93 cents per pound, flax is a cost-effective raw material for fiber production. The productivity of our process using flax is twice as efficient as it is with hemp, yielding nearly twice as much usable fiber." Get ready for the flax revolution.
[Images courtesy Howard F. Schwartz, Colorado State University, Bugwood.org]

Tuesday, August 26, 2008


GOOD NEWS FOR
A CHANGE
Image left is of hemp seed oil grown and produced in the UK. Years ago there was only salad and frying oil, which were bound to be safflower, rape, maize or the occasional cottonseed. Then along came olive oil, which took years to catch on, but is now on every shelf in many varieties. Flax, sunflower, avocado, walnut, sesame, and even the exotic black seed and pumpkin seed oils then made their way in to our shops. Only in the last 10 years has hemp seed oil become known, but it really is, nutritionally, the king of oils. But it is here to stay, and the Good Oil people have 1,200 acres under contract to produce it for them. Check out more information at their website, www.goodwebsite.co.uk

Thursday, November 08, 2007



HEALING ONESELF

In the US, a woman has been arrested, thrown in jail, gagged from speaking, and put in solitary confinement - for healing her son. Laurie Jessop used a number of holistic treatments including black salve to cure son Chad of a tumour. Not surprising these days to hear such a story, and then again the Pharisees wanted to arrest Christ for much the same. I guess he was not making the doctors in Jerusalem rich.

This week I had a cold and have been using garlic, so I hope I am not the next victim of the Gestapo. Soon I may be using nettles - which have long been used by mankind. There is a great article about this plant in the current issue of Caduceus [#73] by herbalist Zoe Hawes (pp. 23-24). She notes that it is a 'greedy' plant, taking lots of nutrients from the earth, and thus full of calcium, vitamins B,C & K, minerals and trace elements. The iron content is 4.2mg per 100g. Dandruff is reputed to be cured by an infusion of nettle seeds in water.

Lately there was much buzz about nettles as a fibre, and one UK paper reported on it as if it was the next big thing. However, when I went to the Soho shop mentioned in the article, there were no nettle outfits. The whole thing was sloppy reporting and overhype, but it is very possible to use nettle fibre for clothing, and no, it does not sting when you wear it.

I would like to encourage nettle fiber research, however, so that along with hemp, flax, ramie and jute, it may replace cotton and plastics for clothing and then be recycled as paper. The more natural fibres we use the easier it will be to reduce methane emissions, as clothes made from natural fibres can be recycled into paper, thus reducing logging. What keeps this from happening is the fact that we use a lot of synthetic materials in clothing, so they are not easy to recycle. They are sent to landfills where they decompose and release methane gas.

If we are to heal ourselves and the planet, we need to address this.

Monday, March 12, 2007



HEMP GIVES A VICTORY TO FISHERMEN
Image right is a fisherman with roach (Rutilus rutilus). This is one of many fish taken by the use of hemp seeds, including the latest tournament in the Cambridge Fish Perservation's Championship (see www.cambridge-news.co.uk/sport/angling/2007/03/09).
Also in this month's UK papers, another research trial with children has concluded that Omega 3 oils are good for learning (along with leaving off junk food); however, it recommended fish oils, the usual story from the fourth estate without a lot of research. Fish oils have been recalled by the Food Standards Agency here because of contaminants, so if anyone is really smart, they will seek plant sources for this, such as hemp, flax and evening primrose oil.

Friday, June 16, 2006

TECHNICAL NOTE ON HEMP PAPER
Hemp (Cannabis sativa). The fiber is prepared by retting, from filaments, which run the entire length of the stem. The ultimate fibers composing these filaments vary from 5 to 55 mm. and average about 22 mm. long by 0.022 mm in diameter, the ratio of length to diameter therefore about 1000. The fibers have very thick walls, which are not very lignified. The ends are large and sometimes flattened and the central canal is almost obliterated. In microscopic appearance the fibers are very similar to those of flax; they show the same knots of thickenings and the same striae, but they differ from linen in having more ability to break down into fibraillae during the mechanical processes of paper making.
Chemistry of Pulp and Papermaking, Edwin Sutermeister, 1929

Tuesday, June 13, 2006

FISHY NEWS ON OMEGA-3 ACIDS
Lately we have been hearing a lot about Omega-3 fatty acid. Much of this study started in the 1970s in Greenland when it was discovered that the indigenous Inuit population had a low incidence of cardiac disease although they consumed much fat in their diet. As their source of food was mainly fish and marine animals, it was easy to trace the substances in their food. Omega-3 fatty acids were noted, and since then, much research has been conducted to show that there is much value in these compounds; they have been known to increase skin condition, ease joint inflammation, reduce heart attack and improve concentration.
However, there is some confusion about what exactly Omega-3 fatty acid is. To start with, it is not a single substance: Omega-3 is more of an adjective than a noun; it describes certain fatty acids which have the first double carbon-carbon bond on the third carbon atom of the chain. A description which hadly makes it easy and familiar to most people. To add to the maze of polysyllables, there are basically three Omega-3 fatty acids that are being discussed when the term is used; two of them are called 'marine' Omega-3 fatty acids, as they are found in marine creatures. Their names are eicosapentaenoic acid and docosahexaenoic acid.
Both of these are synthesised in the human body from a third, alpha-linolenic acid, which is found in plants, mainly hemp and flax. Hemp oil contains 17-24% of this, in tandem with around 50% linoleic acid (an Omega-6 fatty acid; as you've probably already guessed, it is called this because the first double carbon-carbon bond occurs on the sixth carbon atom of the chain...)
The ratio between them is much discussed, as some say the optimum ratio is 3:1, based on the fact that it occurs in this ratio in humam cells. However, there is much debate as to whether this 3:1 is really optimum, or perhaps a 2:1, or even a 5:1, is really the best.
Whatever the argument about the ratio, there is a wide range of qualified opinion (including Dr. Robert Winston, Dr. Andrew Stall, Prof. John Stein and health columnist Jane Clark of The Times), stating that Omega-3 is pretty good stuff; in fact, it is often called 'brain food'. Little wonder, this appellation, when half of the fatty acid from which our brains are made is an Omega-3, the aforementioned docohexaenoic acid. An article in The Independent on Sunday on 11 June, 2006, gave a number of examples in which children fed 500 mg of Omega-3 fatty acids improved dramatically in their ability to concentrate and do classwork.
While this is rather conclusive, there are scetpics, and also those who say that the supplements given might not be as effective as the foods from which they are extracted, which makes sense. The article was rather well-researched and well-written, but had one major drawback; it made no mention of vegetable sources for Omega-3 fatty acids. Vegans, and anyone objecting the the fishy taste of their supplements, are just two groups sidelined in this. To be fair, this article is not the first to have this fault, it seems from reading on this over the years that journalists are fed lots of information from the fish industry; this impression is given strength as it turns out that Prof. John Stein, who is quoted in the above-mentioned IoS article, is brother to Rick Stein, a fish restaurateur who serves lavish fish dinners to politicians in Washington, D.C. while John gives a lecture on the benefits of fish.
Perhaps the fish industry is promoting health, personally I love fish. A less personable note on fish food comes from the US Food & Drug Administraion, which warns people to restrict their intake of Omega-3 from fish. With all the mercury, lead, nickel, arsenic, cadmium, PCBs, furans and dioxins, one thinks they may have good reason to warn us. Along with their data-based observations is the thought that in some cases the seas are overfished and we need to let stocks replenish.
We would hope that there will be more research into this issue, and that it also becomes lot more clear; just now, to many people it is as cloudy as a pot of rancid oil, and we would like to be able to see the light coming through when we hold it up to scrutiny. Since it does appear that Omega-3 fatty acids are of great benefit, it stands to reason that we ought to have a source of them on hand that we can trust to be heavy metal-, PCB-, furan- and dioxin-free. Hemp oil seems to be the best bet for a number or reasons, as hemp can be grown in almost any country, and grows quickly, giving the population a steady supply of an Omega-3 fatty acid (along with a number of other substances, including essential amino acids and tocopherols) in a single season. That it can do so without pesticides is also very important.
(additional information can be found in the 9 June, 2006 posting on varieties of hemp oil)