Fish oil is being used as a nutritional supplement since the traditional time. It is generally derived from oil coming from the tissues of oily fish. There are many sources of fish that the world gets its fish oil supply from. But about 50 percent of all fish oil production in the world comes from farmed salmon.
Fish Oil Sources
Fish oil is primarily derived from farmed salmon. There were the times when the source of fish oil was other fatty fish notably mackerel, lake trout, flounder and tuna which could be a predatory. And because of this, they undergo the risk of collecting certain toxic material such as mercury, dioxin and PCB’s. In order to avoid this and have fish oil sources known to be as clean as possible, farmed salmon are the best option.
Fish Oil Benefits
One of the things why fish oil has become quite a popular nutritional supplement around the world is because it is very rich in Omega -3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid. These compounds are said to help reduce the risk of coronary heart disease. There are also studies that say that these nutrients also have anti-cancer properties as well as may help in certain cases of depression.
Fish Oil Production
The production of fish oil is apportioned with a large number of countries. But it has been seen that there was a substantial decrease in total fish oil supply, mainly because of declines suffered by a lot of the said countries. Countries such as Peru, Chile, Denmark, Iceland and Norway are known as the five major fish oil exporting nations.
Despite the various benefits that fish oil is said to offer as a supplement, medical experts still recommend carefulness in overusing it. There have been studies that indicate certain risks associated with fish oil. Some studies have discovered the suspected risks in the usage of EPA and DHA fatty acids in fish oil.
Over usage of EPA and DHA, which is determined at more than three grams daily, are known to increase the risk of bleeding, especially in people who are also taking aspirin or warfarin. But further research may be required to conclude if EPA and DHA do render such risks. Extreme dosage intake of fish oil is also associated with a higher risk of experiencing hemorrhagic stroke. In some individuals, the consumption of fish oil may also have an effect on LDL cholesterol levels.
Because fish oil is still considered as fat, people with obesity should also be cautious of taking fish oil as a supplement. Recent research seems to provide different results when it comes to how the fatty acids in fish oil affect people who may be suffering from heart disease or stroke.
In absence of definitive research, patients are being cautioned not to take fish oil without the recommendation from their doctor. People with certain heart problems or a previous history of any sort of heart complication should first converse with their doctors about the safety of taking fish oil supplements.