Your bones are constantly changing — old bone is broken down and new bone is built in a continuous cycle of renewal. But as we age, or due to certain genetic and lifestyle factors, this balance can tip: bone is lost faster than it is replaced. The result is osteoporosis — a condition that makes bones weak, brittle, and vulnerable to fractures from even minor falls or bumps.
Osteoporosis is often called a "silent disease" because it typically has no symptoms until a fracture occurs. Yet it affects an estimated 50 million people in India — and the majority don't know they have it until a bone breaks.
Who Is at Risk?
Osteoporosis can affect anyone, but certain factors significantly increase risk:
- Age — Bone density peaks in your late 20s and gradually declines thereafter; risk increases significantly after 50
- Gender — Women are at much higher risk, particularly after menopause when oestrogen levels drop sharply
- Genetics — Genetic factors account for more than 50% of the variation in bone mineral density (BMD) between individuals; a family history of osteoporosis or fractures significantly elevates your risk
- Small body frame — People with smaller frames have less bone mass to draw from as they age
- Nutritional deficiencies — Low calcium and vitamin D intake throughout life reduces peak bone mass
- Sedentary lifestyle — Lack of weight-bearing exercise accelerates bone loss
- Smoking and excess alcohol — Both impair bone formation and calcium absorption
- Certain medications — Long-term corticosteroid use is a major risk factor for secondary osteoporosis
- Medical conditions — Rheumatoid arthritis, coeliac disease, inflammatory bowel disease, and hyperthyroidism all increase osteoporosis risk
The Genetics of Osteoporosis
Bone mineral density (BMD) — the amount of calcium and other minerals in your bones — is one of the most heritable traits in medicine. Genome-wide association studies (GWAS) have identified over 500 genetic variants associated with BMD and fracture risk. Key genes include:
- LRP5 — Encodes a receptor in the Wnt signalling pathway that regulates bone formation; variants are associated with both high and low bone mass
- RANKL/RANK/OPG pathway genes — Regulate the balance between bone formation and resorption; variants affect fracture risk
- VDR (Vitamin D Receptor) — Variants affect how efficiently your body uses vitamin D for calcium absorption and bone mineralization
- COL1A1/COL1A2 — Encode type I collagen, the main structural protein in bone; variants affect bone quality and fracture risk
- ESR1 (Oestrogen Receptor 1) — Influences how bones respond to oestrogen; particularly relevant for post-menopausal bone loss
Understanding your genetic predisposition to low BMD allows you to take targeted preventive action — before bone loss becomes significant.
Recognizing the Signs
Osteoporosis itself is silent — but these signs may indicate significant bone loss has already occurred:
- Back pain caused by a fractured or collapsed vertebra
- Loss of height over time
- A stooped or hunched posture (kyphosis)
- A bone that breaks much more easily than expected — from a minor fall, a bump, or even a sneeze
The most common fracture sites are the hip, spine, and wrist. Hip fractures in particular are associated with significant morbidity — up to 20% of older adults who suffer a hip fracture die within a year from related complications.
Diagnosis
The gold standard for diagnosing osteoporosis is a DEXA scan (Dual-Energy X-ray Absorptiometry) — a low-radiation imaging test that measures bone mineral density at the hip and spine. Results are reported as a T-score:
- T-score ≥0: Normal bone density
- T-score between -1 and -2.5: Osteopenia (low bone mass; precursor to osteoporosis)
- T-score ≤-2.5: Osteoporosis
Screening is recommended for all women over 65, all men over 70, and younger individuals with significant risk factors.
What You Can Change: Lifestyle Strategies for Bone Health
Calcium and Vitamin D
Calcium is the primary mineral in bone; vitamin D is essential for calcium absorption. Adults need 1,000–1,200 mg of calcium daily and 600–2,000 IU of vitamin D daily (higher amounts for those with deficiency). Dairy products, leafy greens, fortified foods, and sunlight exposure are key sources.
Weight-Bearing and Resistance Exercise
Exercise is one of the most powerful tools for building and maintaining bone density. Weight-bearing activities (walking, jogging, dancing, stair climbing) and resistance training (weights, resistance bands) stimulate bone formation and improve muscle strength and balance — reducing fall risk.
Protein
Adequate protein intake supports bone matrix formation. Studies show that higher protein intake is associated with greater bone mineral density. Include lean meat, fish, eggs, dairy, legumes, and nuts in your diet.
Avoid Smoking and Limit Alcohol
Smoking impairs bone cell production and increases bone resorption. Alcohol reduces calcium absorption and increases calcium excretion. Both significantly accelerate bone loss.
Maintain a Healthy Weight
Being underweight is a significant risk factor for osteoporosis — low body weight is associated with lower bone mass. Being overweight puts excess stress on bones and joints. A healthy BMI (18.5–24.9) supports optimal bone health.
Medical Treatment
For those diagnosed with osteoporosis or at high fracture risk, medications can slow bone loss and reduce fracture risk:
- Bisphosphonates (alendronate, risedronate) — First-line treatment; reduce bone resorption
- Denosumab — Inhibits RANKL, reducing bone resorption
- Teriparatide — Stimulates new bone formation; used for severe osteoporosis
- Hormone Replacement Therapy (HRT) — For post-menopausal women; reduces bone loss but has other risk considerations
FAQs
Can osteoporosis be reversed?
Osteoporosis cannot be fully reversed, but bone loss can be slowed and fracture risk significantly reduced with appropriate treatment and lifestyle changes. Some medications can modestly increase bone density over time.
At what age should I get a bone density test?
Women over 65 and men over 70 should have routine DEXA screening. Younger individuals with risk factors — including a family history of osteoporosis, early menopause, long-term steroid use, or a genetic predisposition to low BMD — should discuss earlier screening with their doctor.
🧬 Know Your Genetic Bone Health Risk
Genomepatri by MapmyGenome includes genetic insights into bone mineral density, vitamin D metabolism, calcium absorption, and osteoporosis risk — alongside 100+ health and wellness traits. Our board-certified genetic counsellors correlate your results with your health history to give you a complete picture and actionable recommendations.
→ Order Genomepatri — India's #1 At-Home DNA Wellness Test (₹7,999)
Also explore: MapMyBiome — your gut microbiome influences calcium absorption and bone health too.
