Article📅 04/22/2026⏱ 8 min read👨‍⚕️ NutriAI Team

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Protein for Muscle Gain: How Much, From Where, and How to Calculate It

📅 April 21, 2026  ·  ⏱ 6 min read  ·  🏷 protein, muscle gain, gym nutrition

"I eat fine, train 4 times a week, but my weight isn't moving" — the most common complaint from people in the gym. In 80% of cases, the cause is simple: not enough protein. Let's break down how much you need and how to track it without the pain.

How much protein do you need for muscle gain?

According to the International Society of Sports Nutrition (ISSN, 2023), the optimal protein intake for muscle gain is:

1.6–2.2 g of protein per kg of body weight per day
For an 80 kg person: 128–176 g of protein per day

Below 1.6 g/kg, muscle growth slows. Above 2.2 g/kg you have surplus that the body can't use efficiently (though it isn't harmful for healthy people).

Best protein sources (by protein-to-calorie ratio)

FoodProtein (g/100g)KcalConvenience
Chicken breast (boiled)31165⭐⭐⭐⭐⭐
Cottage cheese 5%17121⭐⭐⭐⭐⭐
Tuna in water2696⭐⭐⭐⭐⭐
Whole eggs13155⭐⭐⭐⭐⭐
Greek yogurt10100⭐⭐⭐⭐
Beef (lean)26190⭐⭐⭐
Salmon20208⭐⭐⭐
Chickpeas, cooked9165⭐⭐⭐⭐

Common mistakes when counting protein

💪

AI counts your protein from a photo automatically

Snap a photo of your plate — NutriAI shows grams of protein, calories, and tells you whether you're hitting your goal. No scales, no manual entry.

Open NutriAI in Telegram

How to track protein without the daily grind

The classic approach is to weigh every portion and punch it into an app. Reality check: a week in, you're done with that.

The modern approach: AI photo analysis. You just snap your plate, and NutriAI:

  1. Identifies every component on the plate
  2. Estimates the portion size
  3. Returns a precise number for protein, fat, and carbs
  4. Tells you whether it fits your daily target

It takes 3 seconds versus 5–10 minutes of manual entry. And yes — it's free (3 analyses a day on the free tier).

A sample day: 180 g of protein for an 85 kg lifter

Total: ~197 g of protein. A realistic plan with no exotic supplements.

🤖 Start tracking protein in Telegram