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Sports Nutrition: Calcium

Strong bones support strong athletic performance and calcium plays a major role in good athlete nutrition.

Calcium

Calcium is the most abundant mineral in the body and is needed to build and maintain strong bones. Adequate calcium intake can help prevent osteoporosis and high blood pressure, and is needed for heart, muscle, and nerve function. Both children and adults need adequate intake of calcium and recommendations depend on age and sex.

Stress fractures account for 0.7% to 20% of all sports medicine clinic injuries, therefore athletes should focus on a diet rich in calcium, vitamin D, and protein. The Collegiate and Professional Sports Dietitians Association (CSPDA) recommends 1000 to 1300 milligrams of calcium per day for athletes. Incorporating three daily servings of dairy foods like milk, yogurt, and cheese will help athletes meet their calcium recommendations.

Food sources of calcium include: 

  • Milk*, yogurt, and cheese
  • Canned sardines and salmon with bones
  • Certain vegetables, such as kale, broccoli, and Chinese cabbage (bok choi)
  • Calcium-fortified foods such as breakfast cereals, fruit juices and soy beverage
  • *Milk is the leading food source of calcium and vitamin D for all Americans over the age of 2.

*Milk is the leading food source of calcium and vitamin D for all Americans over the age of 2.

It’s important to note that if you’re relying on vegetables to meet your calcium needs, you’ll need to eat a lot of them. For example, you would need to eat about 10 cups of raw spinach to get the same amount of calcium in one 8-ounce glass of milk. Plant-based beverages are also sometimes fortified with calcium, but in varying amounts. It’s important to read the label to understand the nutrients in these products.

High calcium meal and snack ideas: 

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