When people engage in resistance training, eating protein across four to six meals per day leads to higher rates of muscle protein synthesis than eating the same amount of protein in fewer meals.

We analyzed the available research on whether spreading protein intake across four to six meals per day boosts muscle growth during resistance training compared to fewer meals. What we’ve found so far is mixed: 55 studies suggest that eating protein more frequently may lead to higher rates of muscle protein synthesis — the process your body uses to build and repair muscle — while 47 studies do not show this same effect [1]. The idea behind eating protein more often is that it may keep your muscles exposed to amino acids — the building blocks of protein — for longer periods, potentially signaling your body to keep building muscle. Some of the supporting studies observed this effect in controlled settings where protein intake was matched across meal patterns, meaning the total daily amount didn’t change, only how it was spread out. But other studies found no meaningful difference in muscle growth, even when protein was consumed in just two or three meals. We can’t say one approach is clearly better because the results vary. Some people may respond better to more frequent meals, while others see the same results with fewer, larger portions. The evidence doesn’t show that spreading protein across four to six meals is necessary for muscle gain, nor does it rule it out. What this means for you: if you find it easier or more comfortable to eat protein in four to six meals, go ahead. But if you prefer fewer meals, you’re not missing out on muscle growth — as long as you’re getting enough protein overall throughout the day. The timing may matter a little, but the total amount likely matters more.