There is no established standard dose for this case; it is advisable to consult a professional.
Effect by goal · level of evidence
Muscle mass and performance
improvesVery highstudy (A)
Position stand of the International Society of Sports Nutrition: to gain and maintain muscle, 1.4-2.0 g of protein per kg per day is enough in people who train; taking it before or after strength exercise boosts muscle synthesis. Well-supported consensus.
Meta-analysis with meta-regression: increasing daily protein helps gain some lean mass and strength in healthy adults, but the extra benefit levels off around ~1.6 g/kg/day. Beyond that, it adds little. It confirms an optimal range, not 'the more, the better'.
Nutrient · Highest evidence: Very high · 2 findings
Findings
Muscle mass and performance — improves (Very high, study). Position stand of the International Society of Sports Nutrition: to gain and maintain muscle, 1.4-2.0 g of protein per kg per day is enough in people who train; taking it before or after strength exercise enhances muscle synthesis. Well-supported consensus. 28642676
Lean mass, strength, and function — improves (Moderate, meta-analysis). Meta-analysis with meta-regression: increasing daily protein helps gain some lean mass and strength in healthy adults, but the extra benefit flattens out at around ~1.6 g/kg/day. Beyond that, it adds little. Confirms an optimal range, not 'the more, the better'. 35187864
Information, not medical advice. Prescription drugs require a doctor.
Information, not medical advice. Scientific evidence reflects the quality of the studies.