Osteoporosis in women — and men?

Published: April, 2010

Each year, osteoporosis contributes to more than 2 million bone fractures in the United States. Thankfully, osteoporosis symptoms need not threaten the health of your bones or your quality of life. This report describes how you can prevent and treat osteoporosis through diet, exercise, and medications. You'll also find advice on choosing a calcium supplement, tips on fall-proofing your home, and help with putting together a personalized plan to preserve or boost your bone strength.

Most people think of osteoporosis — a condition characterized by a loss of bone mass and density — as mainly a health problem for older women. If you're male, you may have breathed a small sigh of relief — or simply tuned out — whenever osteoporosis came up. It wasn't a disease you needed to worry about.

True, osteoporosis is more common in women. But men are by no means immune.

Consider these facts:

  • Two million American males have the condition, and millions more have osteopenia, a lesser degree of bone loss.
  • By 2020, the number of men in the United States with thinning bones is expected to top 20 million. Death rates from heart disease and other traditional killers of men are declining, so more men are living long enough to contend with age-related conditions like osteoporosis.
  • Osteoporosis starts earlier and gets worse faster in women because of midlife hormonal shifts, but starting at about age 65, both sexes lose bone at about the same rate.

A particularly dire consequence of osteoporosis is a broken bone. One in four men over age 50 can expect to have an osteoporosis-related fracture some time in his life. That's better than the odds women that age face. But regardless of gender, a broken bone in middle or old age can exact a high price: lingering pain, loss of mobility, long-term disability, and loss of independence.

Caused by low testosterone

Osteoporosis is associated with some male-only conditions — for example, abnormally low testosterone levels (hypogonadism). Both women and men can get the skin condition psoriasis, but research suggests it is linked to loss of bone density in men. Androgen deprivation therapy, which is one way to treat advanced prostate cancer, usually involves drugs that interfere with testosterone. But testosterone promotes bone formation, so those drugs can wind up weakening bones.

Some medications affect bones in both sexes. Long-term cortisone treatment for conditions such as asthma or rheumatoid arthritis can diminish bone mass. The proton-pump inhibitors (Nexium, Prevacid, others) used to treat gastroesophageal reflux disease (GERD) and the selective serotonin reuptake inhibitor antidepressants (Paxil, Prozac, others) have come under scrutiny after the publication of studies suggesting that they, too, may contribute to bone loss. Experts warn that it's too early to draw firm conclusions about the danger to bone health from these drugs. Still, talk with your doctor if you're taking these medications.

Bone health advice: the same for all?

Lifestyle and health habits also are a major factor in osteoporotic risk, for both men and women. Smoking and heavy alcoholic drinking weaken bones. Interestingly, men are more likely than women to engage in those behaviors.

Keeping bones strong is yet another reason to exercise. Vitamin D is also important for bone health — as well as overall good health. Many experts now say we should be getting at least 800 to 1,000 international units (IU) of vitamin D daily, especially during the winter months in the northern latitudes when limited sunlight reduces the amount of the vitamin produced naturally by the skin.

But when it comes to perhaps the most familiar prevention tip — keep your calcium intake high — the recommendations for men are cloudier. Many studies point to an association between long-term daily calcium intake at levels of 1,500 mg or more and a greater risk of developing advanced prostate cancer — although it's important to note that not all have. On the other hand, there's no question that some calcium is needed to maintain bone strength, and there's a string of results that suggest the mineral may lower colon cancer risk. Researchers also note that the calcium–prostate cancer connection may stem from low vitamin D intake.

Great Britain set its daily calcium recommendation at 700 milligrams (mg), which may be closer to the amount that most men should be consuming. For men in danger of developing osteoporosis, the right balance may be about 700 mg to 1,000 mg of calcium a day, which can be achieved with a normal diet that includes one to two servings of dairy products, and plenty of vitamin D, which usually means taking the vitamin in pill form.

Benefiting from women's experience

Men are fortunate because women have pioneered osteoporosis diagnosis and treatment. Men may, however, have fewer treatment choices at this time because some drugs have been tested only in women. Alendronate (Fosamax), the oldest and best-studied drug in the bisphosphonate class, has been shown to be effective in men. An alternative for men receiving androgen deprivation therapy is one of the selective estrogen receptor modulator drugs. These medications, originally developed to treat breast cancer, help preserve bone by mimicking the action of estrogen. And clinical trials show that an experimental drug, denosumab, may have promise for treating men with bone loss resulting from hormonal therapy.

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