How should protein intake be distributed to maximize muscle protein synthesis across the day?

How should protein intake be distributed to maximize muscle protein synthesis across the day?

• A. Approximately 0.25–0.4 g/kg per day, distributed across 2–3 meals.
• B. 0.8 g/kg per meal.
• C. Only one meal per day.
• D. Approximately 0.25–0.4 g/kg per meal, distributed across 4–6 meals daily to reach a total daily intake of about 1.6–2.2 g/kg.

Answer: (D)

Muscle protein synthesis responds to the amount of protein you consume at each eating occasion, with an optimal per-meal dose around a quarter to two-fifths of your body weight in grams. That means each meal should provide enough protein to reach that threshold so the anabolic response is maximized. If you spread protein across several meals, you keep this stimulation happening across the day instead of letting it drop between meals. To support growth and recovery, you also want a total daily protein intake in the range of about 1.6–2.2 g per kilogram of body weight. Putting those ideas together, distributing protein into roughly four to six meals each day, with each meal delivering about 0.25–0.4 g/kg, achieves both goals: you hit the per-meal anabolic window multiple times and you reach the recommended daily total. For example, a person weighing 70 kg would aim for roughly 18–28 g of protein per meal, across four to six meals, totaling about 112–154 g per day. That pattern best sustains MPS across the day compared with fewer meals or much larger or smaller per-meal amounts. Options that suggest fewer meals or much larger per-meal doses fail to maintain repeated MPS stimulation or to meet the total daily intake associated with optimal muscle protein accretion, which is why the distribution across 4–6 meals at 0.25–0.4 g/kg per meal is the best approach.

Muscle protein synthesis responds to the amount of protein you consume at each eating occasion, with an optimal per-meal dose around a quarter to two-fifths of your body weight in grams. That means each meal should provide enough protein to reach that threshold so the anabolic response is maximized. If you spread protein across several meals, you keep this stimulation happening across the day instead of letting it drop between meals. To support growth and recovery, you also want a total daily protein intake in the range of about 1.6–2.2 g per kilogram of body weight.

Putting those ideas together, distributing protein into roughly four to six meals each day, with each meal delivering about 0.25–0.4 g/kg, achieves both goals: you hit the per-meal anabolic window multiple times and you reach the recommended daily total. For example, a person weighing 70 kg would aim for roughly 18–28 g of protein per meal, across four to six meals, totaling about 112–154 g per day. That pattern best sustains MPS across the day compared with fewer meals or much larger or smaller per-meal amounts.

Options that suggest fewer meals or much larger per-meal doses fail to maintain repeated MPS stimulation or to meet the total daily intake associated with optimal muscle protein accretion, which is why the distribution across 4–6 meals at 0.25–0.4 g/kg per meal is the best approach.