Research
Macro partitioning
Most athletes consume sufficient protein in their habitual diet to support muscle maintenance, and additional protein provides only a minimal advantage for hypertrophy.
You likely already eat enough protein to support your training goals. While slightly more protein might offer a tiny edge, it is not required for most athletes. Focus on your training and total energy intake first.
GoodQualifiesHIGH confidence
Most athletes ingest sufficient protein in their habitual diet. Additional protein will confer only a minimal, albeit arguably important, additional advantage.
Why this rating
The paper is a comprehensive review citing multiple studies, though it notes a lack of 'convincing outcome data' for very high intakes.
Source
Protein and amino acids for athletes
Kevin D. Tipton et al. · Journal of Sports Sciences · 2003
DOI 10.1080/0264041031000140554
narrative_reviewCited 256×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
Related findings · Macro partitioning
- Total daily protein intake of 1.6 g/kg/day is sufficient for maximizing resistance training-induced muscle gains, with an upper confidence interval of 2.2 g/kg/day.Strong
- Resistance exercise training combined with sufficient dietary protein intake acts synergistically to maximize skeletal muscle hypertrophy, with protein intake saturating around 1.6 g/kg/day for general populations and potentially requiring 2.0-2.2 g/kg/day for resistance-trained individuals.Strong
- Trans fats should be completely eliminated from the diet, as they increase LDL cholesterol, decrease HDL cholesterol, and are directly associated with increased coronary risk.Strong
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