Calcium is an important mineral that is essential for healthy bones. The following vegetables are considered dietary sources of calcium: spinach, collard greens, turnip greens, kale, white beans, okra, soybeans, beet greens and Chinese cabbage. Be aware that it can be more difficult for your body to absorb calcium from plant sources because of phytic acid and oxalate which are found in plants and can bind with the calcium. Other non-dairy foods that contain calcium are sardines, salmon and fortified ready-to-eat cereals. Don’t forget about calcium fortified orange juice too! Fruits and vegetables may improve your bone health in another way by creating a more alkaline environment in your body which results in less calcium lost in your urine and more calcium for bone growth.