Protein Timing and Distribution (Leucine Threshold)

What is Protein Timing and Distribution (Leucine Threshold)?

Optimizing muscle protein synthesis by distributing protein intake evenly across 3-4 meals, each meeting the leucine threshold of ~2.5-3g (equivalent to 25-40g protein per meal) to maximize the anabolic response throughout the day.

Is there evidence for it?

How do you do Protein Timing and Distribution (Leucine Threshold)?

1. 1.Calculate total daily protein needs: 0.7-1.0g per pound of bodyweight for active individuals. Divide evenly across 3-4 meals spaced 3-5 hours apart.
2. 2.Ensure each meal contains 25-40g of high-quality protein with at least 2.5g leucine. Best sources: whey protein (~2.5g leucine per 25g), eggs (6 eggs = ~3g leucine), chicken breast (25g protein = ~1.8g leucine, need ~35g serving).
3. 3.For older adults (50+), increase the per-meal threshold to 30-40g protein (3-4g leucine) to overcome age-related anabolic resistance.
4. 4.Time your first protein meal within 1-2 hours of waking and your last within 2-3 hours of sleep. Post-workout protein within 2 hours, though total daily intake matters more than exact timing.
5. 5.Avoid protein-sparse meals (e.g., cereal and toast for breakfast). Each meal is an opportunity to trigger MPS, which stays elevated for ~2-2.5 hours after eating.

How long does it take?

Daily meal planning, minimal extra time.

Is it hard to start?

easy.

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