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 .
Milk supplementation prevents bone loss in postmenopausal Chinese women over 3 years.
Previously published results from a 2 year r and omized , controlled clinical trial on supplementing the diet of postmenopausal Chinese women with  high-calcium milk powder  ( containing 800 mg of calcium ) showed that bone loss , as measured by bone mineral density ( BMD ) , was prevented . To determine whether the effect of calcium supplementation could be sustained , the study was extended for 1 additional year . According to the intention-to-treat analysis , the differences in the rate of bone loss ( percentage decrease in control group -- percentage decrease in milk supplementation group ) in the third year of the study were : total body BMD , 0.23 % ( 95 % confidence interval [ CI ] 0.07%-0.39 % ) ; total spine BMD , 0.31 % ( 95 % CI - 0.02%-0.65 % ) ; and total hip BMD , 0.44 % ( 95 % CI 0.19%-0.69 % ) . Analysis by the per- protocol method showed a similar effect size . These results indicate that the effects of milk supplementation in preventing  bone loss in postmenopausal Chinese women were sustained after 2 years
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 .