green leafy foods, for example, are rich in calcium. here is a list of calcium rich foods:

• Salmon
• Tofu
• Rhubarb
• Sardines
• Collard greens
• Spinach
• Turnip greens
• Okra
• White beans
• Baked beans
• Broccoli
• Peas
• Brussel sprouts
• Sesame seeds
• Bok choy
• Almonds

the good news is that natural foods has all you need for calcium! :)

in the meantime, raw ginger and also baking soda dissolved in water could be of great help to your condition, if you run into trouble while you're figuring it out.

Good luck!