Tibial Fracture - Genes & Biomarkers Summary Gene / Biomarker Bad Score Free Actions Non-free Actions GENES BIOMARKERS COL1A1rs1107946 low-BMD alleleCalcium + Vit D-rich dietGenetic collagen panel VDRReduced Vit D sensitivityDaily sunlight exposureVit D3 supplement LRP5Loss-of-function variantWeight-bearing exerciseDEXA bone density scan RUNX2Low osteoblast expressionResistance trainingOsteocalcin blood test OPGLow OPG/RANKL ratioAvoid smoking & alcoholOPG/RANKL assay Vitamin D<20 ng/mLSunlight + fatty fishVit D3 supplement PTH>65 pg/mLCalcium-rich foodsPTH + calcium test P1NP<20 ng/mLDaily walk + exerciseBone formation panel CTX-1>0.57 ng/mLReduce alcohol, no smokingAnti-resorptive therapy IGF-1<100 ng/mLProtein intake + sleepIGF-1 serum test Magnesium<0.75 mmol/LNuts, seeds, leafy greensMg supplement (citrate) hs-CRP>3 mg/LAnti-inflammatory dietInflammation panel test