3. Lettuce vs spinach
Why would anyone change one type of green for another? The fact is spinach contains 2 times more potassium, protein, calcium, iron, niacin, and vitamins A, B, and C than any other leaf vegetable.
Additionally, it’s high in fiber and minerals, including magnesium and phosphorus. It’s almost impossible to tell the difference in taste, but spinach has more nutritional value than lettuce.