Protein for Muscle Gain: Complete 2026 Guide

How much protein do you need? When to take it? Best sources? Everything you need to know based on science to maximize your muscle hypertrophy.

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How Much Protein Do You Need?

Scientific recommendations:

1.6-2.2g
Active muscle hypertrophy
Per kg body weight/day
1.2-1.6g
Maintenance + general health
Per kg body weight/day
2.2-3.0g
Caloric deficit (cutting)
To preserve muscle while losing fat
Example: If you weigh 70 kg and want to gain muscle → you need 112-154g protein/day

Best Protein Sources

动物（完整）:

  • 🍗 Chicken/turkey breast 30g/100g
  • 🐟 Salmon, tuna 25g/100g
  • 🥚 全蛋 6g/huevo
  • 🥩 瘦牛肉 26g/100g
  • 🥛 Whey protein 20-25g/scoop
  • 🐟 虾 24g/100g

Plant-based:

  • 🌱 Cooked lentils 18g/100g
  • 🫘 Chickpeas 19g/100g
  • 🌾 Cooked quinoa 14g/100g
  • 🧊 豆腐 8g/100g
  • 🌱 Soy protein 50g/100g
  • 🥜 花生 26g/100g

Protein Timing (When to Take)

POST-WORKOUT (0-2 hours after)

20-40g proteína within 2 hours. The "anabolic window" exists but is more flexible than previously thought.

✓ Whey protein (fast absorption) + carbohydrates (glycogen replenishment)

BEFORE BED

30g酪蛋白（慢消化）。

✓ Cottage cheese, casein protein

均匀分配

4-6 comidas with 25-40g each. Maximizes muscle protein synthesis (MPS).

✓ Example 150g/day: 30g breakfast + 30g snack + 30g lunch + 30g snack + 30g dinner

Frequently Asked Questions

蛋白粉还是真实食物？

Both work. Prioritize real food (additional nutrients), use supplements for convenience when you need quick hits.

Does too much protein damage kidneys?

NO in healthy people. Studies show up to 3g/kg is safe. If you have pre-existing kidney disease, consult a doctor.

Is plant protein equally effective?

Yes, but you need to combine sources (rice + beans, quinoa + lentils) to get all essential amino acids.

Calculate YOUR Exact Macros

Trainaifit.health calculates your TDEE and generates your perfect protein/carbs/fats distribution for YOUR goal.

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