When Completely ready to get ready the fish, heat oven to 425 levels. Spot the basil leaves on a rimmed baking dish and arrange fish on top. Sprinkle fish with salt and pepper, then drizzle the lemon oil around the fillets. Top with olives. Scatter tomatoes round the pan.Sardines deliver 2 grams of coronary heart-healthy omega-3s for every 3 ounce

Choose small-mercury mackerel species: Go for Atlantic or jack mackerel, as they often have reduced mercury levels compared to king mackerel.Atlantic and Pacific mackerel have very low mercury levels and therefore are safer for regular intake. However, king mackerel has higher mercury levels and may be limited, especially by pregnant Women of all a