Magnificent magnesium
When Popeye declared, "I'm strong to the finish, 'cause I eats me spinach!" he probably had no idea why spinach had such powers. Well, it turns out that in addition to providing around 30% of your daily value for vitamin C, 12% of B6, 8% of iron and 6% of calcium in 3.5 ounces, it's dishing up 6% of the magnesium your body needs. That mineral helps your muscles, nerves, bones, and heart function smoothly and protects you from vitamin D deficiency. And now it turns out it's also important for brain health.