Is osteoporosis hereditary?
Explore the genetic variants associated with bone density, osteoporosis and fracture risk — one of the most heritable skeletal traits.
Osteoporosis means bone mass declines and bone structure weakens, raising fracture risk. Twin and family studies show bone density has one of the strongest hereditary components among common traits — large GWAS have linked hundreds of loci to bone mineral density.
What the analysis shows
DNAHelper shows which bone-density-related variants your raw file contains and what research has linked them to. The result is a statistical association — not a diagnosis of osteoporosis, which can only be made with a bone density scan (DXA) and clinical assessment. The analysis is based on the traits osteoporosis, heel bone mineral density, spine bone mineral density, bone fracture (1190 associated variants, strong evidence strength).
Which variants matter
Bone density is highly polygenic — genome-wide studies have identified hundreds of loci associated with bone mineral density, many near genes in bone remodelling systems (including WNT signalling and the RANK/RANKL pathway). Each individual variant has only a marginal effect.
Most associations are found against bone density measured by heel ultrasound or DXA of the hip and spine — and the same loci often recur in fracture-risk analyses. Rare variants with larger effects exist, but common variants dominate the picture.
What research has actually found
Heritability of bone mineral density is estimated at roughly 50–85 percent in twin studies — among the highest for common measurable traits. Having close relatives with osteoporosis or a hip fracture is itself one of the strongest risk markers.
Yet the known variants explain only part of the heritability, and genetics does not say who will actually sustain a fracture. Age, sex, fall risk and hormonal changes weigh heavily.
What matters more than genes
Weight-bearing exercise, adequate calcium and vitamin D, not smoking and moderate alcohol consumption are well-documented factors for bone health. Preventing falls — lighting, vision, balance — has a direct effect on fracture risk.
For suspected osteoporosis or a previous fragility fracture, medical assessment is the way forward — bone density measurement and any treatment are decided on clinical grounds, not genetic variants.
Limitations — read this before interpreting the result
This is educational information about statistical associations — not a medical statement, not a health test and not a statement about your health. The analysis is based on the traits osteoporosis, heel bone mineral density, spine bone mineral density, bone fracture (strong evidence strength). If you suspect symptoms, contact healthcare — a predisposition is not a diagnosis.
Privacy: your file never leaves the browser
You pick your raw file locally — it is parsed and analysed entirely in your browser and is not uploaded for the standard analysis. The only exception is the optional DNA Chat feature where you, after explicit consent, can share selected variants. Read the privacy policy · What happens to your DNA file?
Compatible raw files
Works with raw data exports from MyHeritage, 23andMe, AncestryDNA and FamilyTreeDNA (.txt, .csv, .zip). The download guides show exactly where to find the file at your provider — and the file formats are explained here.
Also read: Method & science · All analyses · All traits · Muscle mass and genes · Vitamin D and genes