what is the single most nutritious food?
['Salmon. Not all fish is created equal. ... ', 'Kale. Of all the healthy leafy greens, kale is the king. ... ', 'Seaweed. The sea has more than just fish. ... ', 'Garlic. Garlic really is an amazing ingredient. ... ', 'Shellfish. ... ', 'Potatoes. ... ', 'Liver. ... ', 'Sardines.']