Oily fish, such as salmon, is high in omega-3 fatty acids. These are essential nutrients, which means you can only get them from foods.
Sardines are small, oily fish that you can eat whole. They contain Trusted Source a little of almost every nutrient your body needs.
Kale is a green, leafy vegetable that’s rich in vitamins, minerals, fiber, antioxidants, and various bioactive compounds.
Seaweed provides Trusted Source minerals such as calcium, iron, magnesium, and manganese.
Garlic provides Trusted Source vitamins C, B1, and B6, calcium, potassium, copper, manganese, and selenium, as well as allicin, a sulfur compound.
Clams, oysters, scallops, and mussels are types of shellfish that can be highly nutritious.