Omega-3 fatty acids are a type of unsaturated fat that is beneficial for human health. They are found in fish oil and certain plant oils, and can also be made in the body from alpha-linolenic acid (ALA), another type of unsaturated fat.
Omega-3 fatty acids are important for many aspects of human health, including heart health, brain development and function, and inflammation.
The American Heart Association recommends that people eat at least two servings of fish per week to get enough omega-3 fatty acids. Good sources of omega-3 fatty acids include salmon, tuna, mackerel, herring, sardines, and trout. Plant sources include flaxseed oil, canola oil, soybean oil, and walnut oil.
Some people take supplements containing omega-3 fatty acids to get the benefits without having to eat fish or other foods that contain them. Omega-3 supplements are available as capsules or liquids.