World’s Healthiest Vegetable Revealed: Watercress Tops the List and Costs Just £1 Wednesday, June 3, 2026 watercress nutrition vegetables health supermarket leafygreen cdc cruciferous potassium vitamins Scientists have identified the world’s most nutrient-dense vegetable, and the surprising winner is watercress. According to research published by the Centers for Disease Control and Prevention (CDC), watercress earned a … Read More