Spinach is a highly nutritious leafy green vegetable loaded with vitamins A, C, and K, folate, iron, calcium, folate, magnesium, potassium, and fiber. It's known for contributing to a healthy heart and blood pressure levels. Because it's rich fiber, spinach promotes healthy digestion, prevents constipation, and supports gut health. It also contains various antioxidants, such as beta-carotene, lutein, and zeaxanthin. These antioxidants help protect the body against free radicals, which can contribute to chronic diseases like heart disease and cancer.