Omega-3 fatty acids are essential nutrients that your body cannot produce and must acquire from food. Sources of this vital fat include salmon, flaxseed oil, which contains both omega-3 and omega-6 fatty acids.
Omega-3 fatty acids are important in the diet to help balance omega-6 essential fatty acids. The Western diet is typically much more indulgent in omega-6, and this can lead to disease-causing inflammation in the body.
Omega-3 can
Feed the brain - DHA specifically plays a role in how well cells can communicate with each other; their actions may help support memory and promote cognitive health
Help lower risk of heart disease (when part of a healthy lifestyle)
Help lower triglyceride levels (when part of a healthy lifestyle)
Help support memory
Support eye health and help reduce the risk for age-related vision problems
Different Omegas are shown in below diagram
Omega-3 is not prevalent across our regular food items. Only few specific non-veg and very few veg foods have it. To cater need of enough omega-3 in our body, supplement is needed. Supplement fulfill gap between daily intake and actual need of the body
Eating fish oil supplements with meals that contain fat is MUCH better for absorption. More of the Omega-3 gets into your ‘system’ and more stays there over time when you eat your fish oil pills with food.
The fat present in your food is what helps Omega-3 get absorbed into your body.
https://authoritynutrition.com/12-omega-3-rich-foods/
https://www.youtube.com/watch?v=OJfNYFHrkLw
http://www.livestrong.com/article/502625-the-best-time-to-take-omega-3/
http://omegavia.com/fish-oil-with-food-empty-stomach/
http://www.beautiful-minds.com/the-benefits-of-algal-dha/is-dha-different-from-omega-3s