Research
Energy balance
Energy intake is more critical than protein intake for maintaining nitrogen equilibrium and lean body mass during training.
Ensure you are eating enough total calories to support your training. If you are not gaining muscle, increasing your total energy intake may be more effective than simply adding more protein.
GoodSupportsHIGH confidence
There is evidence to suggest that energy intake is, in fact, more important for maintenance of nitrogen equilibrium than protein intake.
Why this rating
Supported by multiple studies cited (Butterfield, Gater, Forbes), though the paper notes limitations in long-term studies.
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
- Most athletes consume sufficient protein in their habitual diet to support muscle maintenance, and additional protein provides only a minimal advantage for hypertrophy.Good
- The metabolic response to protein ingestion is dependent on timing, amino acid composition, and concurrent nutrient intake, not just total daily protein amount.Good
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