Facts: Arugula microgreens are wonderful for helping keep bones healthy and strong. The same amount of calcium is contained in arugula microgreens as is found in spinach. A benefit of the arugula microgreens is that it has a much lower amount of oxalates compared to spinach, which prevent full calcium absorption. Nutrients: Vitamins A and C, calcium, iron, and phosphorus. Microgreen Color: GreenMicrogreen Flavor: Peppery flavor, slightly buttery and cabbage-likeMicrogreen Texture: Crisp, fresh.