Calcium for Female Adolescent Athletes


    What does Dr. Goldstein think about vitamins?
    The American diet allows almost every child enough vitamins and minerals that I don't
    believe they are necessary. They aren't dangerous either, but are probably a waste of money
    in most instances.

    Are there any exceptions?
    Athletes, especially female adolescents WILL BENEFIT FROM A CALCIUM SUPPLEMENT to
    strengthen bone and reduce the chances of fractures and stress fractures. The
    calcium is best absorbed if mixed with Vitamin D- either in the vitamin or by natural sunlight
    (the risk of excessive sunlight, of course, is skin damage and skin cancer)
               
Some research suggests that "non-loading" sports such as swimming has added risk to
maturing bones, increasing the chances of osteoporosis in early adulthood. "Loading
sports" such as gymnastics, while risky for acute injury and fractures, may be more
protective in the long run when it comes to overall bone health.

Nutrition is extremely important as well, especially for the young athlete. Females are at
particular risk. See
Female Athlete Triad article.

    What is the dose?

    Milk (8 ounces has about 200mg of Calcium)and ice cream is probably
    not enough!
    I advise young children to take about 1000mg Calcium with Vitamin D
    (800 IU)
    and teenagers to take 1500mg-2000mg of Calcium with Vitamin D
    (between 800-1000 IU). This can be any brand as long as the Vitamin D is
    with it... so even though calcium carbonate tablets (TUMS for instance) is a good source of
    Calcium- it lacks the Vitamin D for absorption. Recent research has shown that American's
    diet may lack Vitamin D needed for healthy bones- especially during infancy and young
    childhood.

    Are there athletes that should not take Calcium?
    Children with a personal history (or family history) of kidney stones, kidney problems, or
    urine abnormalities should check with their doctor before starting a calcium supplement.

               August 2010- there has been a suggestion of increased cardiac risk (for myocardial
                infarction) with increased calcium supplementation if not taken with Vitamin D.


    Are there things that take away the Calcium benefits?
    The best things to avoid are soft drinks. These are "healthless" drinks (with phosphorus that
    "competes" with calcium) that should be replaced with milk, fruit juices, and water.

    The bottom line---
    The bottom line is that children are participating in high level sport at a younger age and are
    putting their growing bodies at risk for several potential problems. All females begin losing
    calcium around 25 years of age- so building up stores before then is crucial!
    ASK YOUR DOCTOR IF IT IS SAFE FOR YOUR CHILD!

wellbody
Focused on the healthcare of athletes

Calcium Dosages
*Talk to your doctor first!
Pre-teen (8-12 years old)
Calcium: 1000mg daily
500mg twice daily

Vitamin D: 800 IU daily
400IU twice daily

Teenagers (over 12 yrs)
Calcium: 1500mg daily
1000mg in the AM and  
500mg in PM

Vitamin D: 800-1000 IU daily
400 IU in the AM and
400 IU in the PM