5. Watercress for other greens
Watercress is a better source of vitamins C, B1, B6, K, E, Iron, Calcium, Magnesium, Manganese, Zinc, and Potassium than apples, broccoli, and tomatoes. By weight, watercress has more calcium than milk, more vitamin C than an orange and more absorbable iron than spinach (spinach is high in oxlactic acid, which blocks the natural absorption of iron). A single 4-ounce bunch of watercress has more than a full day’s RDA for potassium.
Recipe: Springtime Watercress Soup