In older people with osteoporosis , higher protein intake ( ≥ 0.8-g/kg body weight/day , i.e. , above the current RDA ) is associated with higher BMD , a slower rate of bone loss , and reduced risk of hip fracture , provided that dietary calcium intakes are adequate .
Intervention with dietary protein supplements attenuate age-related BMD decrease and reduce bone turnover marker levels , together with an increase in IGF-I and a decrease in PTH .
There is no evidence that diet-derived acid load is deleterious for bone health .
Thus , insufficient dietary protein intakes may be a more severe problem than protein excess in the elderly .
A summary of systematic review s and meta-analyses addressing the benefits and risks of dietary protein intakes  for  bone health in adults suggests that dietary protein levels even above the current RDA may be beneficial in reducing bone loss and hip fracture risk , provided calcium intakes are adequate .
Several systematic review s and meta-analyses have addressed the benefits and risks of dietary protein intakes for bone health in adults .
Adequate supplies of dietary protein are required for optimal bone growth and maintenance of healthy bone .
Variation in protein intakes within the “ normal ” range accounts for 2–4 % of BMD variance in adults .
Risk Factors for Hip Fracture in Older Men: The Osteoporotic Fractures in Men Study (MrOS).
Almost 30 % of hip fractures occur in men ; the mortality , morbidity , and loss of independence after hip fractures are greater in men than in women . To comprehensively evaluate risk factors for hip fracture in older men , we performed a prospect i ve study of 5994 men , primarily white , age 65 + years recruited at six US clinical centers . During a mean of 8.6 years of 97 % complete follow-up , 178 men experienced incident hip fractures . Information on risk factors including  femoral neck bone mineral density ( FNBMD ) was obtained at the baseline visit . Cox proportional hazards models were used to calculate the hazard ratio ( HR ) with 95 % confidence intervals ; Fine and Gray models adjusted for competing mortality risk . Older age ( ≥75 years ) , low FNBMD , currently smoking , greater height and height loss since age 25 years , history of fracture , use of tricyclic antidepressants , history of myocardial infa rct ion or angina , hyperthyroidism or Parkinson 's disease , lower protein intake , and lower executive function were all associated with an increased hip fracture risk . Further adjustment for competing mortality attenuated HR for smoking , hyperthyroidism , and Parkinson 's disease . The incidence rate of hip fracture per 1000 person-years ( PY ) was greatest in men with FNBMD T-scores < -2.5 ( white women reference data base ) who also had 4 + risk factors , 33.4 . Men age ≥80 years with 3 + major comorbidities experienced hip fracture at rates of 14.52 versus 0.88 per 1000 PY in men age < 70 years with zero comorbidities . Older men with low FNBMD , multiple risk factors , and multimorbidity have a high risk of hip fracture . Many of these assessment s can easily be incorporated into routine clinical practice and may lead to improved risk stratification . © 2016 American Society for Bone and Mineral Research
In older people with osteoporosis , higher protein intake ( ≥ 0.8-g/kg body weight/day , i.e. , above the current RDA ) is associated with higher BMD , a slower rate of bone loss , and reduced risk of hip fracture , provided that dietary calcium intakes are adequate .
Intervention with dietary protein supplements attenuate age-related BMD decrease and reduce bone turnover marker levels , together with an increase in IGF-I and a decrease in PTH .
There is no evidence that diet-derived acid load is deleterious for bone health .
Thus , insufficient dietary protein intakes may be a more severe problem than protein excess in the elderly .
A summary of systematic review s and meta-analyses addressing the benefits and risks of dietary protein intakes  for  bone health in adults suggests that dietary protein levels even above the current RDA may be beneficial in reducing bone loss and hip fracture risk , provided calcium intakes are adequate .
Several systematic review s and meta-analyses have addressed the benefits and risks of dietary protein intakes for bone health in adults .
Adequate supplies of dietary protein are required for optimal bone growth and maintenance of healthy bone .
Variation in protein intakes within the “ normal ” range accounts for 2–4 % of BMD variance in adults .