There are also supplements you can take, here is what I take:
Vitamin K: This helps direct calcium to your bones. I take two forms of Vitamin K in high doses:
180mcg Menaquinone-7 (MK7) - TrueVantage brand and
45,000 mcg (45 mg) of vitamin K2 (menaquinone-4) - Life Extension K2 High Potency brand
Collagen as Fortibone: I take a daily powdered collagen supplement that contains Fortibone, which has been shown in studies to help bones. The cheapest brand I found on Amazon is AlgaeCal brand. It's cheaper if you buy two or three at a time. I make a smoothie with it along with some juice, banana, and other fruit. It also contains 11 grams of protein per serving.
Protein powder: Protein is important for your bones so you might want to consider a supplement if your diet doesn't contain enough. I’ve used two different protein powders, each with only 1 gram of sugar: Orgain Organic Vegan Protein Powder in Strawberry and Cream flavor and Oath Nutrition Protein Powder, favorite flavor is Frosty Lemonade.
Prunes: Studies have shown that eating 5-6 prunes a day can help bones.
Magnesium is also important, so I take 200-300mg of magnesium glycinate/day.
Of course, I also take calcium, vitamin D, as well as C, B complex and fish oil capsules. If you want a food based calcium, you can order Seen Calcium Chews, which gets its calcium from food (dates, milk minerals and protein, almonds and mushroom . Each chew contains 500mg calcium and 400IU Vitamin D.
@daisy17 great information!