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ConditionOsteoporosis
Osteoporosis is bone loss: bones become more porous and break more easily. It runs for years without symptoms, until a fracture is the first warning.
Osteoporosis at a glance
WhatBone loss, more brittle bones
PreventablePartly, with lifestyleStrong
MeasureBone density (DEXA)
TreatableYes, effective medicinesStrong
91 studies16 answersupdated aug 2026
Evidence per claim
Bone density can be measured with a DEXA scan
View evidence →Bone medicines work and are usually safe
View evidence →Strength training is well proven against bone loss
View evidence →Menopause speeds up bone loss in women
View evidence →Practical use
For whom
Mainly women after menopause, older adults and people with earlier fractures.
Not for whom
Do not wait for a fracture: bone loss is silent, so timely measuring pays off.
Usual dose
Strength training, enough protein and vitamin D; medication (bisphosphonates) at higher risk.
Key caveats
Calcium and vitamin D alone are often not enough; loading the bones is essential.
What we know, and don't
Known
Bone density is easy to measure
Strength training and nutrition help
Medicines work at higher risk
Not yet
The ideal combination per person
How long to use medication
How much each lifestyle factor contributes
Common misconceptions
"You will notice osteoporosis yourself."
False. It is silent until a fracture; that is why measuring matters.Strong evidence
"Just taking calcium prevents it."
Incomplete. Loading (strength training) and vitamin D matter at least as much.Moderate evidence
How Osteoporosis connects
Effects
Training
Conditions
Related
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