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Consuming good dietary fat is any essential partof a healthy fitness orientated lifestyle, and more important, overall physical health. Fats can be broken down into two basic groups, saturated and unsaturated. More importantly, fats can be labeled as essential and nonessential. Essential Fatty Acids must be consumed through ones diet because the body cannot synthesis them. In this article, we will answer:
- What are the essential fatty acids?
- What do essential fatty acids do?
- What happens if you don't get enough essential fatty acids?
- Sources of essential fatty acids?
Let's get started!
The Essential Fatty Acids
Alpha linolenic acid (LNA) (omega-3) which can be converted into:
- Eicosapentaenoic acid (EPA) (omega-3)
- Docosahexaenoic acid (DHA) (omega-3)
Linoleic acid (LA) (omega-6) which can be converted into:
- Gamma linolenic acid (GLA) (omega-6)
- Dihomogamma linolenic acid (DGLA) (omega-6)
- Arachidonic acid (AA) (omega-6)
What Do They Do?
- Energy Production
- Diffusion of oxygen into the bloodstream
- Hemoglobin production
- Vital for the transportation and metabolism of triglycerides and cholesterol
- Brain and nerve tissue development
- Control cell membrane fluids
- Lower high blood cholesterol and triglyceride levels
- Stabilize insulin and blood sugar levels
- Treat arthritis
- Anti-inflammatory
- Ease PMS symptoms
- Decrease allergy response
- Strengthen immune system
- Reduce water retention
- Improved skin texture
- Alleviate psoriasis
- Calming effect and regulates mood [2]
No doubt, essential fatty acids are of extreme importance. There is more to
them though.
Prostaglandins
Prostaglandins were first discovered and isolated from human semen in the 1930s by Ulf von Euler of Sweden. Thinking they had come from the prostate gland, he named them prostaglandins. It has since been determined that they exist and are synthesized in virtually every cell of the body.
Prostaglandins, are like hormones in that they act as chemical messengers, but do not move to other sites, but work right within the cells where they are synthesized.
Prostagladins (PGs) are categorized into one of three groups, depending on which fatty
acid they were metabolized from. The groups are, Series 1 PG’s, Series 2 PG’s, and
Series 3 PG’s.
Series 1 PG’s
Series 1 PG’s are formed from Gamma linolenic acid (GLA), (Which is converted
from LA). Series 1 PG’s are labeled as "Good" prostagladins. This is because they
improve blood circulation, lower blood pressure, decrease inflammation, among other
cellular functions [3]. Perhaps the most crucial effect is preventing arachidonic acid
(AA) from being released by cells. The reason why this is so important is because AA is
what makes Series 2 PG’s.
Some of the main reasons why Series 1 PG’s are so important to bodybuilders
and those concerned with their health are:
- Muscle cell protein synthesis is increased
- Insulin Sensitivity is enhanced (Meaning less insulin is needed to deliver glucose)
- Elevates Growth Hormone secretion [4]
Series 2 PG’s
Series 2 PG’s are labeled as "Bad" prostagladins. As said eariler, Series 2
PG’s are made from arachidonic acid. They facilitate sodium retention, inflammation, and
the formation of blood clots [3]. Series 2 PG’s also increase cortisol release, a very
catabolic hormone. Anyone interesting in building muscle does not want this to
happen.
Series 3 PG’s
Series 3 PG’s are made from EPA (Which is converted from LNA). Series 3 PG’s
are "Good" PG’s because they also prevent the formation of Series 2 PG’s.
Series 2 PG’s are not totally bad though. They are needed to ensure a proper
testosterone level. I wouldn’t stress too much on this. Your body is constantly working
to keep everything balanced. Trying to get overly technical and predict the exact amount
of fat needed to get the best of both worlds is impossible. As long as you a getting the
needed essential fatty acids, you shouldn’t be too concerned with this.
EFA Deficiency Syndromes
LA Deficiency Syndromes:
- Eczema-like skin eruptions
- Loss of hair
- Liver degeneration
- Behavioral disturbances
- Kidney degeneration
- Excessive sweating accompanied by thirst
- Drying up of glands
- Susceptibility to infections
- Failure of wound healing
- Sterility in males
- Miscarriage in females
- Arthritis-like conditions
- Heart and circulatory problems
- Growth retardation[1]
LNA Deficiency Syndromes:
- Growth retardation
- Weakness Impairment of vision and learning ability
- Motor incoordination
- Tingling sensations in arms and legs
- Behavioral changes[1]
How Much Should You Be Getting?
We see the importance of essential fatty acids. Now how much do we need. The
general recommendation is a ratio of LA to LNA of 4:1 or 3:1. The reason for this ratio
is the fact that LNA is metabolized four times quicker than LA. So for every one gram of
LNA, you should consume three to four grams of LA. Also, most diets get ample amounts of
LA, but very low amounts of LNA. There is not an established RDA for essential fatty
acids.
Choosing The Right "Supplement" For You
As you begin to look at essential fatty acids supplements, oils, or foods you will
notice that just about all of them have more LNA than LA. You remember that you should
be getting a ratio of LA to LNA of 3-4:1, but do not be alarmed. As mentioned, you get a
good amount of LA in your diet already. But because you need LNA in your diet, most
companies’ supplements contain more LNA than LA.
Capsules Vs. Oil
One of the first things people look at when buying anything is the price. It
is much more economical to buy an oil, such as flax seed, than to buy capsules. You get
more EFAs this way. But, one thing you will notice is the oil’s taste. I for one
actually like the way flax seed oil taste. It makes other people want to puke though. If
you feel you do not want to taste your EFAs, I recommend buying capsules.
Capsules are also more convenient. Just throw one in your mouth and wash it
down with water. You can also easily take capsules with you one the go. You have to
figure out how much money you have to spend, the need for convenience, and you personal
preference for taste.
One thing to keep in mind is that you can get all your EFA needs through
food. Here is a short list of some foods that contain EFAs.
Where To find them Naturally
Omega 3:
- Salmon
- Tuna
- Trout
- Walnuts
- Flax Seeds
- Pumpkin Seeds
- Flax Seed Oil
- Hemp Seed Oil
- Soy Bean Oil
Omega 6:
- Corn Oil
- Soy Bean Oil
- Sunflower Oil
- Safflower Oil
- Walnuts
- Pumpkin Seeds
You can sprinkle flax seeds in your cereal or salads, eat fish, or grab a
handful of walnuts to get your EFAs.
So what it comes down to is choosing what is best for you. The important thing
is that you get those essential fatty acids and live a healthy life.
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