It's naturally occuring in some seafoods and flax seeds, for example. There's probably some other seeds and nuts that have Omega 3 fatty acids.
More processed foods are choosing to fortify with Omega 3 Fatty Acids. Yes, it can be an additive, just like vitamin supplements are. Omega 3 fatty acids are found in fish, grass fed beef, lamb and pork, chickens fed a diet containing omega 3 FAs and their eggs. Omega 3's are in seed and nuts, too, and especially fatty fish.
No, naturally occurring Fatty Acid. Predominantly found in fish and nuts.
