Question: what is the single most healthiest food?
Answer: 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. Many sea animals are high in nutrients, but shellfish may be among the most nutritious of all. ... 
Potatoes. ... 
Liver. ... 
Sardines.