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 .
Nutrition and subsequent hip fracture risk among a national cohort of white women.
This study investigated three aspects of general nutritional status ( dietary intake , biochemical markers , and anthropometric measurements )  in relation to subsequent hip fracture risk by using prospect i ve data from the First National Health and Nutrition Examination Survey ( NHANES I ) epidemiologic follow-up studies . A cohort of 2,513 white women 45 years and over who participated in the NHANES I survey in 1971 - 1975 were subsequently followed in the three follow-up studies in 1982 - 1984 , 1986 , and 1987 , respectively . Multiple nutritional variables were measured at baseline , and 130 incident hip fractures were identified by hospital records or by death certificates during the follow-up period . Cox regression analyses showed that baseline dietary energy intake ; serum albumin ; and weight , body mass index , skinfold , and arm muscle area were significantly and inversely related to subsequent hip fracture risk ( relative risks for a 1-st and ard deviation increment in these variables ranged from 0.68 to 0.83 ) . The authors suggest that poor nutritional status , evident in inadequate dietary intake , reduced serum albumin , and decreased body mass and soft tissues , increases the risk for subsequent hip fracture . The study also showed that age and previous fracture history were significant risk factors ; however , self-reported physical activity , parity , and alcohol use were not significantly related to subsequent hip fracture
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 .