Spinach
Spinach is a nutrient dense vegetable rich with powerful antioxidants, lutein and zeaxanthin (both linked to improved eye health), kaempferol, quercetin (to help ward off infection), vitamin K1 (which is important for healthy blood clotting), folic acid, iron (which helps to create hemoglobin) and calcium (essential for bone health, nervous system, heart and muscles). It’s also one of the best sources of dietary magnesium (important for energy metabolism, nerve function, heart health and healthy immune system).