Fish oil (omega-3) and heavy metals, and PCBs

Heavy metals and fish

Research in support of the diet with fatty acids omega-3 (as in fish oils) flooded the scientific literature.

This is perfectly predictable given our genetic roots. Nature teaches us to eat raw and natural foods consumed large amounts of omega-3 fatty acids each day. But today, with the excessive consumption of processed foods (cereals) and nonsensical diets may be a deficit of these fatty acids.

Instead, have dramatically increased the consumption of omega-6 fatty acids. Although these are also essential in the diet, the excess gives a pro-inflamatoria response that is based on a mixture of modern degenerative diseases such as arthritis, autoimmune diseases, and diseases of the heart. The natural diet must have a ratio of fatty acids, omega-6 and omega-3 from around 1: 1, never greater than 5: 1, but nowadays in some cases going to more than 20 or 30 to 1 without a doubt a problem!

Fish toxins and slimming diets

Certain types of fish, seaweeds, vegetables, meat fed with grass, game meat, eggs, flax seed and have a good amount of fatty acids omega-3. The variety is always important. Any food may contain toxins, and especially the fish in the high seas; so the variation in the diet gives the body the opportunity to detoxify.

For example, the fish may contain methyl mercury, toxins and PCBs (polychlorinated biphenyls) due to the industrial era that pollutes the rivers and seas. Such poisons are lipophilic (FAT love) and therefore, they are present in fish oils and then tend to accumulate in our fat deposits when consumed.

This is a point to bear in mind in slimming diets, since when people lose fats, the lipophilic toxins (heavy metals), who were in their fat deposits to be loose can poison the body, potentially creating a toxic shock. This is not an excuse to lose no weight, just a warning about the dangers of rapid weight loss of certain radical diets or diets classic I - I.

This is also of particular concern for pregnant women and nursing mothers since these toxins can be transferred and accumulate in the fetus, increasing the risk of abnormalities, diseases and weaknesses.

Increase the amount of omega-3 is not easy and requires a change of mentality in eating habits. Official bodies recommend a diet around 0. 65 g per day of omega-3 (EPA, DHA) for pregnant and lactating women; approximately 1 g for persons with cardiovascular risk (these data are conservatives because in nature, of course, is consumed much more).
For level 1 g/day, should be eaten 210 g of tuna canned in oil or consume 50 g of farmed Atlantic salmon. The type of fish is important, cold-water species have the highest concentrations of omega-3s.

Other fish, such as swordfish, shark, mackerel and tuna fillets, increase the risk of exposure to mercury. It should take into account the PCB intake runs parallel to the consumption of fish.

Omega-3 dietary supplements vary widely in content of these fatty acids since they range from 50% to 150% of what drew the label. Supplements may also contain mercury and PCBs.

Omega-3 fatty acids are very fragile and easily you can become toxic if exposed to heat, light, air, and water. So supplements should be chosen carefully and store them properly.

Our feeling is that the risk of toxins that contain omega-3 fatty acids is less than the risk of not eating omega-3s in your diet. For example, the concentration of PCBs in supplements varies between 2% and 43% of the recommended levels of security. If certain fish are the main source of omega-3, the variety of consumption is going to reduce the risk.

Note also that if you eat omega-3 fatty acids, it is important to consume a good amount of food antioxidant to protect these fragile fatty acids. Supplements should be chosen carefully, be protected from oxidation, even keep them frozen until they consume if you are going to take a long time.

In conclusion, the omega-3s are not any new scientific discovery. They are only part of the diet that we are genetically programmed to consume. If not us so we diverted our original design in eating habits, the omega-3 fatty acids would not be any new discovery.

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