https://www.healthline.com/nutrition/how-much-omega-3
Salmon (4,023 mg per Serving)
Cod Liver Oil (2,664 mg per Serving)
Herring (3,181 mg per Serving)
Oysters (565 mg per Serving)
Sardines (2,205 mg per Serving)
Anchovies (951 mg per Serving)
Caviar (1,086 mg per Serving)
Flaxseeds (2,338 mg per Serving)
Chia Seeds (4,915 mg per Serving)
Walnuts (2,542 mg per Serving)
Soybeans (1,241 mg per Serving)