Table 2.

Summary of the effect of protein supplementation on change in lean body mass (LBM), stratified by the supplemental protein dose or by the presence or absence of resistance training

Subgroup	Mean difference in LBM (kg)	95%CI (kg)	No. of trials	Total no. of individuals
All trials	0.51	0.36–0.65	138	5866
Protein dose < 0.3 g/kg BW/d	0.38	0.20–0.55	40	1815
Protein dose 0.3–0.6 g/kg BW/d	0.41	0.19–0.63	56	2641
Protein dose ≥ 0.6 g/kg BW/d	0.80	0.45–1.14	42	1410
With resistance training	0.48	0.31–0.65	72	2686
Without resistance training	0.53	0.36–0.76	66	3180

Abbreviations: BW, body weight.