HEALTHY LIFESTYLE FUEL: Our mackerel has 16 grams of protein per serving and is the perfect addition to keto, paleo, and Mediterranean diets—or any healthy lifestyle.SIMPLE INGREDIENTS: Chicken of the Sea Mackerel Fillet packets contain only premium cuts of wild caught mackerel perfectly seasoned with salt and packed in soybean oil for rich, delicious flavor.CONVENIENT AND VERSATILE: With no can opener required, our convenient, portable mackerel packets are equally at home in your pantry or your lunchbox. Add to your favorite recipes.WILD CAUGHT: To protect our ocean waters, Chicken of the Sea is proud to offer only responsibly sourced, high quality, wild-caught mackerel.