Romaine lettuce, spinach and other leafy vegetables contain powerful disease-fighting natural antioxidants.
The average adult needs to boost their consumption of dark green vegetables by 200 to 300 percent. We currently eat so little of these foods that our health is suffering, thus the average adult should eat three cups of green leafy vegetables a week.

To reach this amount, you could have a half-cup serving almost every day, or larger servings several times a week.
Dark green vegetables provide minerals such as potassium and magnesium that are linked with healthy levels of blood pressure and blood sugar.
Dark green vegetables are also a great way to fight cancer.