Calcium

Collard juice contains calcium, the most abundant mineral in your body. Your body retains large amounts of potassium in your bone and tooth tissue, and getting enough calcium helps keep your bones dense and strong. Calcium activates enzymes needed for blood clotting, promotes cell communication and helps control your bodys hormone levels. A 2 ounce serving of collard juice provides you with 147 milligrams of calcium, or 15 percent of your recommended daily intake, according to the Linus Pauling Institute.