Supplementing with protein during strength training can increase muscle size gains by approximately 27%.

“people engaged in resistance training should consume 1.6 - 1.8g/kg of protein daily, surpassing standard guidelines”

“Supplementing with protein during strength training can increase gains in muscle size by approximately 27%, even when baseline protein intake is already considered adequate.”

“combining protein supplementation (up to 1.6g/kg of body weight) with resistance training results in a 27% greater increase in lean body mass compared to resistance training alone without additional protein.”

“A key meta-analysis led by @mackinprof shows that supplementing resistance training with extra protein can boost lean body mass by up to 27%.”

“Increasing protein intake to 1.6 g/kg/day (0.72 g/lb/day) has been shown in several studies to maximize strength gains by 10% and muscle gains by 27% during resistance training, compared to an intake of 1.2 g/kg/day.”

“More protein led to a 10% increase in strength and 25% increase in muscle mass compared to the controls.”

“while doubling it, combined with resistance training, increases muscle mass by 27% and strength by 10% more than training alone.”

“1.6 grams of protein per kilo per day was the type of intake that you need to consume. But the effect is small. So in other words, I like, you know, to put it practically, I say, you get most of the benefit from just going to the gym. And then the protein effect is a thin layer on top.”

“now what I said the optimal requirements we don't know but we do know is that at least for muscle mass gain so for the resistance type guys that want to gain more muscle that it tends to have greater gains in muscle mass and in muscle strength if you consume more protein that is what being advised so if you go towards 1.2 or even 1.4 1.6”

“For people engaged in resistance training a protein intake of 1.6 gram per kilogram body weight per day has been shown to maximize gains in lean body mass with a 27% increase in muscle mass over even a 1.2 gam per kilogram intake”

“a metaanalysis from Dr Stuart Phillips and colleagues highlights the importance of protein intake by showing that people who engage in resistance training and supplemented with additional protein taking their total daily protein intake up to 1.6 gram per kilogram body weight increase their muscle mass by 27% and their strength by 10% more than those who did resistance training without additional protein supplementation”