Osteoporosis is called the "silent disease" because bone loss occurs gradually, without pain or symptoms, until a fracture happens. By the time many women are diagnosed, they've already lost significant bone density. A hip fracture in a woman over 65 carries a 20–30% mortality risk within one year — a statistic that should make every woman over 60 take bone health seriously.
The good news: bone loss is not inevitable, and even bone that has thinned can respond to treatment. This guide covers what the evidence actually shows — separating effective prevention from well-marketed myths.
Understanding Bone Loss After Menopause
Bone is living tissue that constantly breaks down and rebuilds. Before menopause, estrogen helps maintain this balance. After menopause, estrogen drops sharply — and bone breakdown accelerates dramatically. Women can lose 1–3% of bone density per year in the first 5–7 years after menopause, potentially losing 20% of their bone density in that window alone.
After age 65, bone loss slows but continues. The goal of prevention is to slow this loss, maximize peak bone density that remains, and reduce fracture risk through both bone strength and fall prevention.
Get a DEXA Scan — Medicare Covers It Free
A DEXA (dual-energy X-ray absorptiometry) scan measures bone mineral density and is the gold standard for diagnosing osteoporosis. Medicare Part B covers a DEXA scan every 24 months for postmenopausal women and women with risk factors — at no cost to you.
Results are expressed as a T-score: above -1.0 is normal; -1.0 to -2.5 is osteopenia (low bone density); below -2.5 is osteoporosis. A T-score of -2.5 or below, or a previous fragility fracture, typically indicates that medication should be discussed.
Calcium and Vitamin D — The Foundation
These two nutrients are essential for bone health, but supplementation strategy matters. Women over 50 need 1,200 mg of calcium daily — ideally from food sources first (dairy, leafy greens, fortified foods) and supplements to fill the gap.
Vitamin D is critical for calcium absorption. Without adequate vitamin D, you can consume all the calcium you want and absorb very little of it. Get your vitamin D level tested — most seniors need 1,000–2,000 IU daily to maintain optimal levels (50–60 ng/mL), though your doctor should guide the dose based on your blood level.
Exercise: The Most Underused Bone Treatment
Exercise is the only intervention that both strengthens bone AND reduces fall risk — making it more valuable than medication alone for many women. The key types:
Weight-bearing exercise forces bones to support your body weight, stimulating bone formation. Examples: walking, dancing, stair climbing, tennis. Aim for 30 minutes most days.
Resistance training builds muscle (which pulls on bone, stimulating density) and dramatically reduces fall risk. Even light dumbbell or resistance band work 2–3 times per week makes a meaningful difference.
Balance training (tai chi, yoga, single-leg exercises) does not directly build bone but reduces fall risk — and a fall avoided is a fracture avoided.
Medications: When Exercise and Nutrition Aren't Enough
If your T-score is -2.5 or below, or if you've had a fragility fracture (a fracture from a low-impact fall or minor injury), medication is typically recommended. Your doctor will assess your 10-year fracture risk using the FRAX calculator.
Bisphosphonates (alendronate/Fosamax, risedronate/Actonel) are first-line medications. They reduce fracture risk by 30–50% and are taken weekly (oral) or every 3 months (IV). Generic versions are inexpensive and covered by most Part D plans.
Denosumab (Prolia) is an injection every 6 months — very effective but more expensive. Discuss with your doctor if bisphosphonates cause side effects or aren't appropriate for your situation.
Lifestyle Factors That Steal Bone
- Smoking: Directly toxic to bone-forming cells. One of the strongest modifiable risk factors for osteoporosis.
- Alcohol: More than 2 drinks per day interferes with calcium absorption and suppresses bone formation.
- Corticosteroids: Long-term use of prednisone and similar drugs causes significant bone loss. If you take these, ask your doctor about bone protection strategies.
- Proton pump inhibitors (Nexium, Prilosec): Long-term use may impair calcium absorption. Discuss with your doctor if you take these regularly.
- Sedentary lifestyle: Bone responds to the stress of weight-bearing activity — inactivity accelerates bone loss.
- Ask your doctor to order a DEXA scan if you're postmenopausal and haven't had one recently
- Get your vitamin D level tested — supplement appropriately
- Aim for 1,200 mg calcium daily from food + supplements combined
- Walk at least 30 minutes daily and add resistance training 2x per week
- Practice balance training to reduce fall risk
- Quit smoking if you currently smoke
- Limit alcohol to 1 drink per day or less
- If T-score is -2.5 or you've had a fracture, discuss medication with your doctor
Frequently Asked Questions
How can women over 60 prevent osteoporosis?
Women over 60 can prevent osteoporosis through weight-bearing exercise (walking, dancing), resistance training, adequate calcium (1,200 mg daily from food and supplements combined), vitamin D (1,000–2,000 IU daily), not smoking, limiting alcohol, and medication when T-score is -2.5 or below.
At what age should women get a bone density test?
The U.S. Preventive Services Task Force recommends bone density screening (DEXA scan) for all women aged 65 and older. Younger postmenopausal women with risk factors should also be screened. Medicare covers a DEXA scan every 24 months for postmenopausal women at no cost.
What is a normal bone density T-score for a 65-year-old woman?
A T-score above -1.0 is normal bone density. A T-score between -1.0 and -2.5 indicates osteopenia (low bone density). A T-score of -2.5 or below is diagnosed as osteoporosis. A previous fragility fracture (from a minor fall or injury) also indicates osteoporosis regardless of T-score.
Does calcium alone prevent osteoporosis?
No — calcium alone is not sufficient to prevent osteoporosis. Vitamin D is essential for calcium absorption. Without adequate vitamin D, most dietary or supplemental calcium is not absorbed. Weight-bearing exercise is also necessary to stimulate bone formation. All three work together — none is effective alone.
What medications treat osteoporosis?
First-line osteoporosis medications are bisphosphonates such as alendronate (Fosamax) and risedronate (Actonel), taken weekly by mouth. They reduce fracture risk by 30–50% and generic versions are covered by most Medicare Part D plans. Denosumab (Prolia) is an injection given every 6 months for those who cannot take bisphosphonates.