What is omega-3
Omega-3 is the fatty acid omega-3, a type of fat found in the human body, sold as supplements
What do we know about omega-3
Research suggests that omega-3 supplements do not reduce the risk of heart disease. But, people who eat seafood once to four times a week are less likely to die of heart disease.
High doses of omega-3 can reduce levels of triglycerides.
Omega-3 supplements can relieve the symptoms of rheumatoid arthritis.
Omega-3 supplements have not been shown to actually reduce the development of ocular diseases such as age-related macular degeneration.
For most cases where omega-3 supplements have been studied, the evidence is inconclusive
Omega 3 for hair: used in making hair vitamins and supplements essential for hair health.
What do we know about the safety of supplements of omega-3
Omega-3 does weight gain? Omega-3 supplements usually cause minor side effects, may cause weight gain if taken in large quantities, and may not cause any symptoms
Omega-3 pills can be used for fattening depending on the amount of fish a person eats daily.
There is conflicting evidence as to whether omega-3 is likely to cause an increased risk of prostate cancer.
If you take medications that affect the formation of blood clots or if you have allergies to fish and seafood, you should consult your doctor before taking omega-3 supplements.
Studies on omega-3
The first study is a study on vitamin D and omega-3 trials, a large study conducted on about 25,871 healthy adults who have no history of cardiovascular disease and are at normal risk of developing it. People from different ethnic groups were selected to represent each community.
Research has mainly tested whether a moderate dose of 1 gram of omega-3 supplement can prevent the occurrence of major cardiovascular diseases, and this study also included strokes and blockages of arteries.
The results of the study were very complex, they are not for is not in the affirmative, where he showed some people benefit, while others did not get any benefit.
Although omega-3 supplements did not reduce cardiovascular disease, there was a dramatic 28% reduction in heart attacks and other heart diseases.
People who ate less than 1.5 servings of fish per week benefited. For these people, there was about 19% of the observed reduction in cardiovascular disease, and about 40% reduction in heart attacks.
The second study
The second study, called the REDUCE-IT experiment, involved more than 8,000 middle-aged and elderly people with high levels of triglycerides who were at or at risk of heart disease. The study aimed to see if a high dose of about 4 grams could protect against cardiovascular disease compared to a placebo.
They showed a marked 25% reduction in death from heart disease or suffering from cardiovascular disease in people who took the drug, compared to those who did not.
High doses of omega-3, are not safe for everyone, as they can cause some errors such as bleeding or an increase in cardiac arrhythmia a condition called atrial fibrillation, and although high doses are associated with some risks, the benefits go beyond the risks for people with high triglyceride levels or at risk of developing cardiovascular disease.
Choosing the right complement
Searching for the right supplement of omega-3 requires searching for the following steps:
Appropriate dose of omega-3: 1 gram, unless recommended by your doctor
The combination of eicosapentaenoic acid and docosahexaenoic acid. Each of these acids provides different health benefits.
Find a quality accessory
In the event that a person has high triglyceride levels and has a high risk of heart disease, talk to a doctor about whether it is possible to use omega-3. 
The amount of omega-3 in seafood.
Sources of omega-3 in food and seafood ration sizeof omega – 3 mackerel3 ounces (100g)2.5 – 2.6 grambrian salmon3 ounces (100g)1.3-2 gramstonk3 ounces (100g)1.2 gramstonkfish3 ounces (100g)1.4 gramshelbut3 ounces (100g)0.9 gramstonk and white meat3 ounces (100g)100g)0.5 g bass (mixed species)3 ounces (100g) 0.65 g
The amount of omega-3 needed by a person
Experts recommend eating about two servings of fish a week, doing 6-8 ounces. This should include a variety of fish such as mackerel, tuna, salmon, sardines and herring, which contain high amounts of omega-3 fatty acids.
What does research indicate about the benefits of omega-3
For heart disease
In 2016, the U.S. government agency for health care and quality research (AHRQ) conducted a comprehensive assessment of 98 studies on omega-3 and heart disease, including diet and dietary supplement studies. They didn't find evidence that omega-3 can reduce the risk of heart attack or death due to heart disease.
There is an analysis conducted of about 10 main types of omega-3 supplements and involved about 77.917 participants with heart disease, each type involved at least 500 participants and the treatment lasted for a year, and research has shown no evidence that omega-3 can reduce the risk of fatal and non-fatal coronary heart disease.
Eating seafood has been associated with a reduced risk of seizures.
There is some research that suggests that omega-3 can reduce stroke that results from narrowing of blood vessels in the lacrimation, and can lower the risk of injury or death from a stroke.
For the Blues.
It is not known how much omega-3 fatty acids are useful for depression. Although some studies have shown promising results, a 2015 study of more than 1,400 people concluded that the effects of omega-3 may be more apparent if used with antidepressant drugs rather than alone.
Omega-3 has not been shown to reduce postpartum or pregnancy depression
For eye diseases
Age-related macular degeneration
This disease affects the elderly and can cause vision loss, the study showed that dietary supplements that contain vitamins, antioxidants and zinc can reduce the progression of the disease in people at risk of infection at an advanced stage of it, according to a study conducted in 2013, included more than 4,000 participants, the addition of omega-3 to these components did not provide any additional benefit
The results of several small studies suggest that taking supplements of omega-3 may help relieve symptoms of dry eye disease. However, a 2018 study sponsored by the National Institutes of Health that tested omega-3 supplements for a full year in a larger group (535 study participants) with moderate to severe dry disease, found that supplements did not offer a greater benefit than placebo.