There seems to be a general consensus that when it comes to calcium, people instantly think about milk. Indeed, a 200 ml glass of milk contains about 250 mg of calcium, which is a quarter of the daily dose recommended by nutritionists. However, there are other healthier and more natural sources we can take advantage of. Tofu, for instance, is a soy derivative that contains 159 mg of calcium for every 100 g. Plus, it is high in protein, phosphorous and magnesium, the minerals responsible for energy transportation in our blood and for the muscle contraction. The same applies to broccoli, which is also source of vitamin A and C, and to spinach, the green leafy-vegetable most remembered for its iron content. These are good alternatives for people allergic to milk, as well as for those seeking a healthier lifestyle. Why not give it a try?