can you mention some food products which contains this element?
yogurt, cheese, sardines, salmon, soy products, kale, and fortified breakfast cereals
Calcium
Foods rich in calcium include dairy products, such as yogurt and cheese, sardines, salmon, soy products, kale, and fortified breakfast cereals.
where does the majority of maple syrup come from Canada from which trees is this syrup made? Sugar maple (Acer saccharum), the black maple (A. nigrum), and the red maple (A. rubrum) why these trees are used to make this syrup? Because of the high sugar content (roughly two to five percent) in the xylem sap of these species. what nutritional values it provides? Water, carbohydrates (sugars), manganese, riboflavin, zinc and calcium can you tell me the physical characteristics of the last element from the above list? Melts at 842 °C, boils at 1494 °C,  density is 1.55 g/cm, Calcium is harder than lead which countries are the major producer of this element? China, Russia, United States
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Calcium [SEP] Food sources
Foods rich in calcium include dairy products, such as yogurt and cheese, sardines, salmon, soy products, kale, and fortified breakfast cereals. Because of concerns for long-term adverse side effects, including calcification of arteries and kidney stones, both the U.S. Institute of Medicine (IOM) and the European Food Safety Authority (EFSA) set Tolerable Upper Intake Levels (ULs) for combined dietary and supplemental calcium. From the IOM, people of ages 9–18 years are not to exceed 3 g/day combined intake; for ages 19–50, not to exceed 2.5 g/day; for ages 51 and older, not to exceed 2 g/day. EFSA set the UL for all adults at 2.5 g/day, but decided the information for children and adolescents was not sufficient to determine ULs.