How Much Protein Do You Actually Need?
The RDA (Recommended Dietary Allowance) for protein is 0.8g per kg of body weight — but this is the minimum to prevent deficiency, not an optimal level for active people. Research consistently shows that higher protein intakes support better outcomes for muscle maintenance, fat loss, and satiety.
Protein Recommendations by Goal
- Sedentary adults: 0.8g/kg — meets basic needs
- General fitness / light activity: 1.2–1.4g/kg — supports muscle maintenance
- Endurance athletes: 1.4–1.7g/kg — repairs muscle breakdown from cardio
- Strength athletes / bodybuilders: 1.6–2.2g/kg — maximizes muscle protein synthesis
- Weight loss phase: 1.6–2.4g/kg — higher protein preserves muscle during a calorie deficit
Protein Timing: Does It Matter?
The body can optimally use approximately 25-40g of protein per meal for muscle protein synthesis. Spreading your daily protein across 3-5 meals maximizes muscle building signals throughout the day. A post-workout meal with 30-40g protein within 2 hours of training is especially important for recovery.
Quality Matters Too
Complete proteins (containing all 9 essential amino acids) include meat, fish, eggs, dairy, and soy. Plant proteins are often incomplete — combine rice with beans, or use varied plant sources to ensure you get all essential amino acids. Leucine content is particularly important for muscle protein synthesis.