World's Healthiest Vegetable Revealed by Scientists — Costs Just £1 in Supermarkets Wednesday, June 3, 2026 watercress nutrition vegetables healthy superfood cdc vitamins leafygreens brassicaceae nutrientdensity Scientists from the Centers for Disease Control and Prevention (CDC) have identified the world’s most nutrient-dense vegetable, awarding it a perfect score of 100. Surprisingly, this top-ranking vegetable is not an exotic or … Read More