Vegetarian Diet Issues - Fatty Acids - Omega 3, 6
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Vegetarian Diet Issues - Fatty Acids - Omega 3, 6
Vegetarianism & Vegetarian Diet Issues & Questions

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Vegetarian Diet Issues

Acknowledgement:
This article on vegetarian issues are based upon copyright materials from the outstanding health website Mercola.com ©Copyright 2003 Dr. Joseph Mercola. We recommend this website.
The author of this article is Stephen Byrnes: see References

Vegetarian References:
Numbers in brackets refer to vegetarian references. See References

Can The Body Convert Omega-6 Fatty Acids Into Omega-3 Fatty Acids As It Needs?

Omega 3 and 6 fatty acids are polyunsaturated fats of which two, linolenic (an omega-3) and linoleic (an omega 6), are essential to human life and must be obtained from food as the body cannot synthesise them. Although very small amounts of omega 3 linolenic acid are found in whole grains and dark green leafy vegetables, it is principally found in animal foods (especially fish and eggs), as well as flax seed oil. Omega 6 linoleic acid is mostly found in vegetables, but small amounts are present in certain animal fats.

To assuage vegans who fear they may not get enough omega 3 linolenic acid, some vegetarian sources assert that the body can simply convert excess omega 6 linoleic acid into omega 3 linolenic acid, and other omega 3 fatty acids such as EPA and DHA, two fatty acids intimately involved in the health of the brain and immune system.

Renowned lipid biochemist Dr Mary Enig, of the University of Maryland, and other authorities have shown that the body cannot change the omega number of fatty acids.

The body can change the fatty acid's degree of saturation and also its molecular length, but not its omega number (12). In other words, omega 6 fatty acids can only be converted into other omega 6 fatty acids; omega 3s only into other omega 3s.

Again, I have seen the results of this misinformation in my practice. I've had several patients of Northern European descent with severe mental and immune problems caused by a lack of EPA and DHA, two omega-3 fatty acids not found in plant foods (DHA is found in small amounts in some algae). People native to warmer climates in the world can manufacture these fatty acids from other omega-3s, but those of Northern European or Innuit descent cannot. Since their ancestors ate so much EPA- and DHA-rich fish, their bodies eventually lost the ability to manufacture these fatty acids (13). For these people, vegetarianism is impossible; they must consume either eggs or fish in order to survive.

There is also a very real danger from consuming too many omega-6 fatty acids, principally found in vegetables. The body requires both omega-6 and omega-3 fatty acids. However, when the body's cells are overloaded with omega-6s, their ability to utilise the omega-3 is inhibited (14).

Chronically low levels of omega-3 fatty acids are associated with higher cancer rates and immune dysfunction. Excessive levels of omega-6 fatty acids are also strongly correlated with a high incidence of cardiovascular disease (as is excessive consumption of refined sugar and trans-fatty acids) [15].

More Vegetarian Articles
Does Meat Consumption Use Up Too Many Natural Resources?
Can Vitamin B12 Be Obtained from Plant Sources?
Can The Body Convert Omega-6 Fatty Acids Into Omega-3 Fatty Acids As It Needs?
Can The body's Needs For Vitamin A Be Entirely Obtained From Plant Foods?
Meat-Eaters Have Higher Rates of Heart And Kidney Disease, Cancer, Obesity Than Vegetarians
Vegetarians Live Longer And Have More Energy and Endurance Than Meat-Eaters
The "Cave Man" Diet Was Low-Fat and/or Vegetarian
Meat and Saturated Fat Consumption
Soy Products Are Adequate Substitutes For Meat and Dairy Products
The Human Body is Not Designed for Meat Consumption
Animal Products Contain Numerous, Harmful Toxins
Eating Animal Foods Is Inhumane
The Value of Vegetarianism

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Vegetarianism is a healthy option and vegetarian diets can be perfectly healthy eating plans but care should be taken to ensure optimum nutrition. So, whether following an ovo-lacto or other type of vegetarian food plan, or vegan diet, for a healthy body and weight make it a balanced eating plan and take regular exercise. Always consult a doctor before beginning a weight loss diet or new fitness routine.
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