Osteoporosis
Bone disease causing decreased bone density and increased fracture risk.
TL;DR
Silent until a fracture happens. Postmenopausal women and adults over 65 should be screened (DEXA scan). Resistance exercise, adequate protein, calcium, vitamin D, and not smoking are the foundation; medication halves fracture risk when density is low.
Overview
Osteoporosis is the silent thinning of bone structure until fractures occur with minimal trauma — typically the hip, spine, or wrist. Bone density peaks around age 30 and declines thereafter, accelerating sharply in women after menopause. Because it produces no symptoms until a fracture, screening and prevention matter more than symptom-watching.
Common Symptoms
- •No symptoms until fracture (hence silent disease)
- •Fragility fractures: hip, wrist, spine
- •Height loss and stooping (vertebral compression)
- •Back pain from vertebral fractures
- •Receding jawbone / loose teeth in some cases
Common Causes
- •Menopause (estrogen loss accelerates bone resorption)
- •Age-related bone loss
- •Long-term corticosteroid use
- •Low dietary calcium and vitamin D
- •Sedentary lifestyle and low muscle mass
- •Smoking and excess alcohol
- •Certain conditions: coeliac, hyperthyroidism, hypogonadism
Root Causes
Bone is constantly remodeled: osteoclasts resorb, osteoblasts rebuild. Osteoporosis develops when resorption outpaces formation — driven by estrogen withdrawal, aging, inactivity (bone responds to mechanical load), and inadequate raw materials (calcium, vitamin D, protein).
How It's Diagnosed
Diagnostic Markers
- DEXA scan: T-score -2.5 or below defines osteoporosis
- FRAX score: 10-year fracture probability
- Vitamin D level (25-OH): target 30-50 ng/mL
- Calcium, phosphate, ALP: rule out metabolic bone disease
- TSH and coeliac serology when risk factors suggest secondary causes
When to See a Doctor
Ask for a DEXA scan if you are a woman over 65, a man over 70, postmenopausal with risk factors, have taken steroids for 3+ months, or have had any fragility fracture after 50. A first fragility fracture strongly predicts the next.
Supplements Studied For This
Collagen (Hydrolyzed)
Reasonable adjunct to calcium, vitamin D, and exercise — not a treatment by itself.
Vitamin K1
Vitamin K1 supplements have not improved bone density in most trials, and the one fracture signal is unconfirmed.
Curcumin
Small trials from two Iranian research groups give mixed signals on bone density and markers, with no fracture data, so the evidence is insufficient.
Vitamin D
Vitamin D alone does not prevent osteoporotic fractures, but daily vitamin D with calcium gives a small hip fracture reduction, mainly in institutionalised older adults.
Vitamin K2
Mixed: small open-label trials suggested fewer fractures, but larger trials and a 2019 review that tested results against risk of bias found no clear benefit.
Calcium
Small, non-progressive bone density gains and inconsistent fracture results, with the best-quality trials and the newest meta-analysis finding little to no benefit, make the evidence mixed.
Strontium
The drug form worked but had cardiovascular harm; the supplement form is untested. DEXA improvements are largely an artifact.
Diet & Lifestyle
Suggested Pattern
Bone needs adequate protein (often underestimated in older adults), calcium from food first, and sufficient vitamin D. Very-low-protein and heavily restrictive diets accelerate bone loss.
Eat more
- Dairy or fortified alternatives (calcium + protein)
- Oily fish (vitamin D, omega-3)
- Leafy greens (calcium, vitamin K)
- Adequate protein at each meal (1.0-1.2 g/kg in older adults)
- Prunes — small trials show bone-protective effects
Avoid
- Excess alcohol
- Very high caffeine intake with low calcium
- Excess sodium (increases calcium excretion)
- Chronic cola consumption (linked to lower bone density)
Supporting Research
High prevalence of osteoporosis in patients with chronic pancreatitis: a systematic review and meta-analysis
Silicon: a review of its potential role in the prevention and treatment of postmenopausal osteoporosis
Bisphosphonates for steroid-induced osteoporosis
Complications of Cushing's syndrome: state of the art
Calcium, vitamin D, or combined supplementation to prevent fractures and falls: systematic review and meta-analysis
Articles on Osteoporosis
Calcium-Rich Foods: Best Sources and Daily Amounts
Yogurt, milk, canned fish, tofu and fortified drinks lead the list. See the calcium in each serving, what you absorb, and when to add a supplement.
14 min readTaking Calcium and Magnesium Supplements Together
Calcium and magnesium can be taken together: studies show little absorption clash. How to split doses, daily limits, the ratio and medicine spacing.
13 min readWhat Not to Take With Magnesium, and What Pairs Well
Magnesium blocks some antibiotics, thyroid and bone drugs unless you space doses, by up to 4 to 6 hours. Which medicines and minerals clash, and what pairs well.
11 min read
Frequently Asked Questions
Do calcium supplements prevent osteoporosis?
Can osteoporosis be reversed?
Is walking enough exercise for bones?
Who It Affects
Osteoporosis affects roughly 1 in 3 women and 1 in 5 men over 50 worldwide; a hip fracture carries a 20-30% one-year mortality in the elderly.
Highest risk: postmenopausal women, especially of European or Asian ancestry, low body weight, family history, steroid users, smokers.
Lifestyle Tips
- •Resistance and weight-bearing exercise 2-3x weekly — bone adapts to load
- •Vitamin D 800-2,000 IU daily if levels are low
- •Get calcium from food where possible (1,000-1,200 mg/day total)
- •Stop smoking — a major bone toxin
- •Fall-proof the home: fractures, not density, are the real enemy
- •Take osteoporosis medication if prescribed — fracture risk reduction is large
My Notes
Sign in to add personal notes
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.