Nutrition · Moderate evidence
Distribute protein throughout the day
Dividing protein into servings of around 0.4 g/kg across four or more meals stimulates protein synthesis more than concentrating everything into one or two.
Controlled trials and narrative review · 3 sources · 2 min
What the studies show
- Four 20 g servings every 3 hours stimulated protein synthesis more than two 40 g servings or eight 10 g servings.
- Even distribution throughout the day outperformed concentrating intake at dinner across 24 hours of synthesis.
- Around 0.4 g/kg per meal across at least four meals provides a practical target to maximize anabolism.
How Letz applies it
The meal plan distributes protein evenly across planned meals instead of clustering it all at dinner.
Numbers derived from this rule
| Parameter | Range | Weight | Rule |
|---|---|---|---|
| Protein per meal | 0.3–0.55 g/kg/meal | 50% | About 0.4 g/kg per meal across four or more meals maximizes protein synthesis; older adults need the upper end of the range.Distribute protein throughout the day · Protein in older adults |
| Protein meals per day | 3–5 meals | 40% | The number of meals does not affect weight; distributing protein across 3 to 5 meals improves its utilization.Distribute protein throughout the day · Nutrient timing and the anabolic window · Meal Frequency and Eating Window |
Who it applies to
Adults engaging in resistance training who want to maximize the utilization of ingested protein.
Limits
Acute protein synthesis is not equivalent to long-term muscle gain; total daily intake remains the primary factor.
Sources
- Schoenfeld & Aragon, Journal of the International Society of Sports Nutrition, 2018 DOI 10.1186/s12970-018-0215-1
- Areta et al., Journal of Physiology, 2013 DOI 10.1113/jphysiol.2012.244897
- Mamerow et al., Journal of Nutrition, 2014 DOI 10.3945/jn.113.185280
More in Nutrition
- Protein and Training AdaptationSufficient protein can support gains in lean mass and strength alongside training; the response varies and does not increase indefinitely with higher intakes.
- Higher Protein Intake During a Calorie DeficitIn a deficit, higher protein protects lean mass and can even allow muscle gain alongside intense training; the effective range rises to approximately 1.6 to 2.4 g/kg.
- Rate of weight lossLosing weight slowly, at around 0.5 to 1% of body weight per week, better preserves lean mass, strength, and metabolic rate compared to rapid weight loss.
- Protein in older adultsOlder adults need more protein per meal to stimulate muscle synthesis; consensus guidelines recommend 1.0 to 1.2 g/kg/day or more for those who train.