Fish oil

Fish oil is oil derived from the tissues of oily fish. It is recommended for a healthy diet because it contains the omega-3 fatty acids, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), precursors to eicosanoids that reduce inflammation throughout the body.

Fish do not actually produce omega-3 fatty acids, but instead accumulate them from either consuming microalgae that produce these fatty acids, as is the case with fish like herring and sardines, or, as is the case with fatty predatory fish, by eating prey fish that have accumulated omega-3 fatty acids from microalgae. Such fatty predatory fish like mackerel, lake trout, flounder, albacore tuna and salmon may be high in omega-3 fatty acids, but due to their position at the top of the food chain, these species can accumulate toxic substances (see biomagnification). For this reason, the FDA recommends limiting consumption of certain (predatory) fish species (e.g. albacore tuna, shark, and swordfish) due to high levels of toxic contaminants such as mercury, dioxin, PCBs and chlordane.

More than 50 percent of the world fish oil production is fed to farmed salmon.There are DHA Omega-3 vegetarian products, made from algae, available if toxic contaminants are of concern.

Benefits of Fish oil
1. Less Pain and Inflammation. Omega 3 fatty acids, particularly EPA, have a very positive effect on your inflammatory response. Through several mechanisms, they regulate your body's inflammation cycle, which prevents and relieves painful conditions like arthritis, prostatitis, cystitis and anything else ending in "itis."

2. Cardiovascular Health. Omega 3 fatty acids have also been proven to work wonders for your heart and the miles and miles of arteries and veins that make up your cardiovascular system. They help to lower cholesterol, tryglicerides, LDLs and blood pressure, while at the same time increasing good HDL cholesterol. This adds years to your life expectancy.

3. Protection from Stroke and Heart Attack. When plaque builds up on arterial walls and then breaks loose, it causes what's known as a thrombosis, which is a fancy way of saying clot. If a clot gets stuck in the brain, it causes a stroke and when it plugs an artery, it causes a heart attack. Research shows omega 3 fatty acids break up clots before they can cause any damage.

4. Better Brain Function and Higher Intelligence. Pregnant and nursing mothers can have a great impact on the intelligence and happiness of their babies by supplementing with fish oil. For adults, omega 3 improves memory, recall, reasoning and focus. You'll swear you're getting younger and smarter.

5. Less Depression and Psychosis. Making you smarter is not all omega 3 does for your brain. Psychiatry department researchers at the University of Sheffield, along with many other research studies, found that omega 3 fish oil supplements "alleviate" the symptoms of depression, bipolar and psychosis (Journal of Affective Disorder Vol. 48(2-3);149-55).

6. Lower Incidence of Childhood Disorders. Just to show how fish oil fatty acids leave nobody out, studies show that children (and adults) with ADD and ADHD experience a greatly improved quality of life. And those with dyslexia, dyspraxia and compulsive disorders have gotten a new lease on life thanks to omega 3 oils.

7. Reduction of Breast, Colon and Prostate Cancer. And finally, omega 3 fish oil has been shown to help prevent three of the most common forms of cancer – breast, colon and prostate. Science tells us that omega 3s accomplish this in three ways. They stop the alteration from a normal healthy cell to a cancerous mass, inhibiting unwanted cellular growth and causing apoptosis, or cellular death, of cancer cells.

So it will be very useful if you include fish-oil in your food..Atleast we can get away from these drastic diseases