If you eat your greens daily you will find your blood numbers are great! Plant based calcium is absorbed better too. If you are a small woman (like me) lift weights and/or wear a weight vest when you walk. I researched and started a few months ago. Slight people have less stress on the bones so adding weight makes calcium build stringer bones.
Collards, kale, navy beans, black beans, dried figs, many other veggies especially rutabaga and parsnips, soy milk, tofu, tahini, almonds, amaranth. Best bet is to emphasize greens twice a day and include a wide range of other foods with higher counts. I recommend a cookbook called CalciYum!, which you can find used on Amazon. The recipes can easily be made salt, oil and refined sugar free.