Oily, cold-water fish from remote, pollution-free waters (anchovies, herring, mackerel, salmon, sardines) are some of the most nutrient-rich foods on the planet: no other food comes close to their omega-3 levels.
Mark Sisson, Primal Blueprint 21-Day Total Body Transformation: A Step-by-Step, Gene Reprogramming Action Plan
diet, food, nutrition, paleo-diet