Osteoporosis: Building Stronger Bones at Any Age
Dr. Michael Zimmer

Dr. Michael A. Zimmer

Osteoporosis: Building Stronger Bones at Any Age

Medically reviewed by Michael A. Zimmer, MD, MACPBoard-Certified Internal Medicine, Medical Director
Post Summary

Osteoporosis silently weakens bones until a fracture occurs. Learn who's at risk, how bone density is measured, and evidence-based strategies for building and maintaining strong bones through nutrition, exercise, and medication when needed.

The Silent Thief: Building Stronger Bones at Any Age

Your bones are alive—constantly breaking down and rebuilding in a process called remodeling. When you're young, your body builds bone faster than it breaks it down. But around age 30, this balance shifts. Without intervention, bones gradually become thinner, weaker, and more fragile—a condition called osteoporosis.

Osteoporosis is called the "silent disease" because bone loss occurs without symptoms. Many people don't know they have it until a bone breaks—often from a minor fall or even a sneeze. Each year, osteoporosis causes more than 2 million fractures in the United States, leading to pain, disability, loss of independence, and increased mortality.

The good news: osteoporosis is preventable, treatable, and it's never too late to take action.

Understanding Bone Health

Bone is living tissue made primarily of collagen (a protein providing flexibility) and calcium phosphate (a mineral providing strength). Throughout life, old bone is constantly removed (resorption) and new bone is formed.

  • Childhood through early adulthood: Bone formation exceeds resorption; bones grow larger and denser
  • Peak bone mass (around age 30): Maximum bone density achieved
  • After 30: Resorption gradually exceeds formation; bone density declines
  • Menopause: Estrogen loss accelerates bone loss in women
  • Later years: Continued decline without intervention

The stronger your bones at peak bone mass, the more you can afford to lose before osteoporosis develops.

Who Is at Risk?

Several factors increase osteoporosis risk:

Non-Modifiable Risk Factors

  • Age: Risk increases with age
  • Sex: Women are 4 times more likely to develop osteoporosis
  • Family history: Parental hip fracture increases your risk
  • Body frame: Small, thin-boned individuals have less bone to lose
  • Ethnicity: White and Asian women have highest risk
  • Early menopause: Before age 45, or surgical menopause

Modifiable Risk Factors

  • Low calcium and vitamin D intake
  • Sedentary lifestyle
  • Smoking
  • Excessive alcohol (more than 2 drinks daily)
  • Low body weight

Medical Conditions and Medications

  • Rheumatoid arthritis
  • Inflammatory bowel disease
  • Celiac disease
  • Hyperthyroidism
  • Long-term corticosteroid use (prednisone)
  • Some cancer treatments
  • Certain seizure medications
  • Proton pump inhibitors (long-term use)

Recognizing Osteoporosis

Osteoporosis typically has no symptoms until a fracture occurs. Warning signs may include:

  • Height loss (more than 1.5 inches)
  • Stooped or hunched posture (kyphosis)
  • Back pain (may indicate vertebral fracture)
  • A fracture from minor trauma

By the time these signs appear, significant bone loss has already occurred.

Bone Density Testing

A DEXA scan (dual-energy X-ray absorptiometry) measures bone mineral density and is the standard test for diagnosing osteoporosis. The test is:

  • Quick (10-15 minutes)
  • Painless
  • Uses minimal radiation

Results are reported as a T-score:

| T-Score | Interpretation | |---------|----------------| | -1.0 and above | Normal bone density | | -1.0 to -2.5 | Low bone mass (osteopenia) | | -2.5 and below | Osteoporosis |

Who Should Be Tested?

  • All women 65 and older
  • All men 70 and older
  • Postmenopausal women under 65 with risk factors
  • Men 50-69 with risk factors
  • Anyone who has had a fragility fracture
  • Anyone taking medications affecting bone

Building Stronger Bones: Nutrition

Calcium

Calcium is the primary mineral in bones. Your body can't make it, so you must get it from food or supplements.

Daily calcium needs:

  • Women 50 and under: 1,000 mg
  • Women over 50: 1,200 mg
  • Men 70 and under: 1,000 mg
  • Men over 70: 1,200 mg

Best food sources:

  • Dairy products (milk, yogurt, cheese)
  • Calcium-fortified foods (orange juice, cereals, plant milks)
  • Sardines and canned salmon (with bones)
  • Leafy greens (kale, bok choy—not spinach, which has poor absorption)
  • Tofu made with calcium sulfate

If you need supplements:

  • Calcium carbonate: Take with food; most calcium per pill
  • Calcium citrate: Can take without food; better for those with low stomach acid
  • Don't exceed 500-600 mg per dose (better absorption)
  • Don't exceed 2,000 mg total daily (including food)

Vitamin D

Vitamin D is essential for calcium absorption. Without adequate vitamin D, you could take all the calcium in the world and still have weak bones.

Daily vitamin D needs:

  • Adults under 70: 600-800 IU
  • Adults over 70: 800-1,000 IU
  • Many experts recommend 1,000-2,000 IU for optimal bone health

Sources:

  • Sunlight (but sunscreen, which you should use, blocks vitamin D production)
  • Fatty fish (salmon, mackerel, sardines)
  • Fortified foods (milk, cereals, orange juice)
  • Supplements (vitamin D3 is preferred)

Despite living in sunny Florida, many residents are vitamin D deficient—often because we stay indoors or use sun protection.

Other Important Nutrients

  • Protein: Necessary for bone structure; get adequate but not excessive amounts
  • Magnesium: Found in nuts, seeds, whole grains, leafy greens
  • Vitamin K: Found in leafy greens; helps with bone metabolism
  • Vitamin C: Important for collagen formation

Building Stronger Bones: Exercise

Exercise is crucial for bone health at every age. The right types of exercise stimulate bone formation and slow bone loss.

Weight-Bearing Exercise

Activities where you work against gravity while staying upright:

  • Walking and hiking
  • Jogging and running
  • Dancing
  • Stair climbing
  • Tennis, pickleball, other racquet sports

These activities stress bones in beneficial ways, signaling the body to strengthen them.

Resistance Training

Exercises using weights, bands, or body weight:

  • Free weights or weight machines
  • Resistance bands
  • Push-ups, squats, lunges

Strength training not only builds bone but also builds muscle, which protects against falls.

Balance and Flexibility

Critical for preventing falls:

  • Tai chi (excellent evidence for fall prevention)
  • Yoga
  • Balance exercises (standing on one foot, heel-to-toe walking)

Exercise Guidelines for Bone Health

  • 30 minutes of weight-bearing exercise most days
  • Strength training 2-3 times per week
  • Balance exercises daily, especially if at fall risk
  • Start slowly and progress gradually
  • Consult your doctor before starting if you have osteoporosis or other health conditions

Lifestyle Factors

Don't Smoke

Smoking accelerates bone loss and doubles fracture risk. Quitting at any age helps protect your bones.

Limit Alcohol

More than 2 drinks daily increases bone loss and fall risk. Moderate or eliminate alcohol consumption.

Prevent Falls

Most osteoporotic fractures result from falls. Reduce your risk:

  • Remove tripping hazards at home
  • Ensure adequate lighting
  • Use handrails on stairs
  • Wear sturdy, non-slip shoes
  • Have vision checked regularly
  • Review medications that cause dizziness
  • Consider a cane or walker if needed

Medication Options

When lifestyle measures aren't enough, medications can help:

Bisphosphonates

Most commonly prescribed; slow bone breakdown:

  • Alendronate (Fosamax)
  • Risedronate (Actonel)
  • Ibandronate (Boniva)
  • Zoledronic acid (Reclast)—annual IV infusion

Other Medications

  • Denosumab (Prolia): Injection every 6 months
  • Raloxifene (Evista): Selective estrogen receptor modulator for women
  • Teriparatide (Forteo) and Abaloparatide (Tymlos): Build new bone; for severe osteoporosis
  • Romosozumab (Evenity): Newest option; builds bone and reduces breakdown

Your doctor will recommend the best option based on your specific situation, fracture risk, and other health factors.

It's Never Too Late

Whether you're 40 and want to maximize bone mass, 60 and concerned about osteopenia, or 75 and managing osteoporosis—there are steps you can take to protect your bones.

  • Get adequate calcium and vitamin D
  • Exercise regularly with weight-bearing and resistance activities
  • Don't smoke and limit alcohol
  • Prevent falls
  • Get a bone density test if appropriate
  • Take medication if recommended

Strong bones support an active, independent life. Start building them today, regardless of your age.

If you're concerned about your bone health or have risk factors for osteoporosis, schedule an appointment. We can assess your risk, recommend appropriate testing, and develop a plan to keep your bones strong for years to come.

After a Fracture: The Window That Matters Most

A wrist, hip, or spine fracture from a fall at standing height is not bad luck. It is the diagnosis, and the year that follows is when the next fracture is most likely and most preventable.

The first break predicts the next

A fragility fracture roughly doubles the risk of another one, and the risk is highest in the first year or two. Yet most people who break a bone this way leave the emergency department or the orthopedic office without a bone density test or a treatment plan. If you have fractured a wrist, hip, shoulder, or vertebra after 50, you meet the treatment threshold for osteoporosis regardless of your DEXA T-score, and we start the conversation about medication at the first follow-up visit rather than waiting for the next scan. Height loss of more than an inch and a half, or a new stoop, is a reason to X-ray the spine for silent vertebral fractures.

The labs we check before treating

Bone loss sometimes has a driver that medication alone will not fix. Before starting treatment I check calcium, a vitamin D level, kidney function, a complete blood count, and thyroid function, and depending on the history, a parathyroid hormone level and a celiac screen. Vitamin D deficiency is the most common finding, hyperparathyroidism the most commonly missed, and celiac disease the one that surprises people, because it can cause osteoporosis without a single digestive symptom. The NIAMS guide to diagnosis and treatment walks through the same workup.

Staying on Treatment, and Stopping It Safely

The medications for osteoporosis work only while the plan is followed, and each one has its own rules about how long to take it and how to stop.

How long bisphosphonates run

Alendronate, risedronate, and yearly zoledronic acid are the usual starting point. After about three to five years we reassess: patients whose bone density has improved and who have not fractured can often take a supervised break, because the drug remains in bone for years, while those at higher risk continue. The two rare complications people read about, jaw osteonecrosis and atypical thigh fractures, are far less common than the hip fractures the drugs prevent, but new thigh or groin aching on long-term treatment is worth an X-ray. Tell your dentist you take one before any extraction.

Denosumab cannot simply be stopped

Denosumab is different. Its effect wears off within months of a missed injection, and stopping it without a plan causes rapid rebound bone loss and, in some patients, multiple spine fractures. If you are on it, the shot is due every six months on schedule, including through hurricane season and snowbird travel, and if it is ever discontinued we transition to a bisphosphonate rather than stopping outright. The bone-building agents teriparatide, abaloparatide, and romosozumab are used for a limited course in severe cases and are always followed by an antiresorptive to lock in the gain.

What improvement looks like

Medication does not make bones feel different, so people wonder whether it is working. The measure is a repeat DEXA scan, which Medicare covers every two years, and the goal is a stable or rising score and, above all, no new fractures. A falling score on treatment prompts a check of vitamin D, absorption, and whether the pill is actually being taken correctly, since alendronate taken with coffee or food absorbs almost nothing.

Bone Health in the Florida Context

Living in the Sunshine City changes a few things about this disease, not all of them in the direction people expect.

Sun, sunscreen, and the vitamin D question

We see plenty of vitamin D deficiency in St. Petersburg, because sunscreen, air conditioning, and indoor lives mean that the sun overhead rarely reaches skin for long. I do not recommend trading sun protection for vitamin D; skin cancer is real here. A blood level and a daily vitamin D3 supplement solve the problem without the burn. Our article on vitamin D in the Sunshine City covers testing and dosing in detail.

Falls happen on wet tile and pool decks

Most osteoporotic fractures come from falls, and the Florida versions have their own pattern: wet tile floors, pool decks, boat docks, sandy steps, and the sudden dizziness of standing up in the heat, especially on a diuretic or blood pressure medication. Osteopenia with a fall history can carry more fracture risk than osteoporosis in someone steady on their feet, which is why we treat balance as seriously as density. Our fall prevention guide for St. Pete seniors and strength training after 60 article cover the practical side, and the USPSTF screening recommendation explains who should be scanned in the first place. If you have not had a DEXA and you are a woman over 65, a man over 70, or anyone with a fracture after 50, schedule a visit.

Trusted external sources

Questions about anything on this page? Schedule a visit with Zimmer Medical Group in St. Petersburg, FL.

Frequently Asked Questions

Not necessarily. A hip, spine, wrist, or shoulder fracture from a fall at standing height after age 50 is itself a diagnosis of osteoporosis, and treatment is recommended regardless of the T-score. We still order a DEXA scan for a baseline to measure progress against, along with blood work to rule out vitamin D deficiency, parathyroid disease, and other causes, but the decision to treat does not wait on the scan.
Usually three to five years, then we reassess. Bisphosphonates such as alendronate stay in bone for years after the last dose, so patients whose density has improved and who have not fractured can often take a supervised break of a few years. People at higher risk, including anyone with a prior spine or hip fracture or a very low T-score, generally continue longer. The decision is individual and reviewed with each repeat DEXA scan.
Call us promptly. Denosumab wears off within months, and a long gap causes rapid rebound bone loss that has led to multiple spine fractures in some patients. If the injection is more than a month or so late, we get it scheduled right away, and if you plan to stop the drug for any reason we transition you to a bisphosphonate first rather than stopping outright. Plan the six-month dates around travel and hurricane season.
Many of our St. Petersburg patients cannot, because sunscreen, air conditioning, and indoor routines limit how much sun reaches the skin, and skin makes less vitamin D with age. I do not suggest skipping sun protection to fix it. A blood test tells us where you stand, and a daily vitamin D3 supplement reliably brings the level into range without the skin cancer risk that unprotected sun carries.