If you've been diagnosed with osteoporosis, you need lots of vital nutrients like calcium and vitamin D. Breakfast may be the best time to boost your bone health. Many foods and beverages are now fortified with calcium, such as orange juice, milk, and cereal. Experts advise taking up to 1,500 milligrams of calcium a day, in doses of 500 milligrams each, as your body can only absorb 500 milligrams at a time. Incorporate calcium-rich foods into your meals throughout the day. Calcium not only strengthens bones but also enhances the effects of osteoporosis medications. For breakfast, choose calcium-fortified cereals, milk, yogurt, and orange juice. For lunch and dinner, include high-calcium foods like sardines, Swiss cheese, cheddar cheese, canned salmon, turnip greens, and kale. Remember to also get enough vitamin D, which helps your body absorb calcium.