How much protein do athletes need?

Athletes typically need 1.4–2.2 g of protein per kg of body weight per day. Endurance athletes usually need 1.2–1.6 g/kg, while strength and power athletes benefit from the higher end at 1.6–2.2 g/kg. The exact amount depends on training intensity, volume, and goals.

Do endurance athletes need as much protein as strength athletes?

Endurance athletes generally need slightly less protein than strength athletes — around 1.2–1.6 g/kg vs 1.6–2.2 g/kg. However, during heavy training blocks or competition preparation, endurance athletes may benefit from higher intakes to support recovery and reduce muscle damage.

Should athletes take protein supplements?

Supplements are convenient but not essential. Whole food sources provide the same benefit for muscle recovery and growth. If you struggle to meet your daily target through food alone due to training schedules or appetite suppression after exercise, a whey or plant-based protein shake can help bridge the gap.

How should athletes distribute protein throughout the day?

Athletes should aim for 0.25–0.40 g/kg per meal across 4–5 eating occasions. This maximizes muscle protein synthesis throughout the day. Include a protein-rich meal or snack within a few hours before and after training sessions.

Protein Calculator for Athletes

Calculate your optimal protein intake for athletic performance. Whether you train for endurance, strength, or power, get a personalized target based on your training demands.

Sex

Age

Weight

Height (cm)

Activity Level

Primary Goal

Protein Needs by Sport Type

Endurance Sports

Runners, cyclists, swimmers, and triathletes: 1.2–1.6 g/kg per day. Higher during intense training blocks to support muscle repair and immune function.

Strength & Power

Weightlifters, powerlifters, sprinters: 1.6–2.2 g/kg per day. The higher end supports muscle hypertrophy and recovery from high-intensity resistance training.

Team Sports

Soccer, basketball, rugby players: 1.4–1.8 g/kg per day. These sports combine endurance and power demands, requiring moderate-to-high protein for recovery.

Athlete Protein Targets by Body Weight

Body Weight	Endurance Base	Mixed Sport	Strength / Cut
60 kg / 132 lb	72-96 g	84-108 g	96-132 g
75 kg / 165 lb	90-120 g	105-135 g	120-165 g
90 kg / 198 lb	108-144 g	126-162 g	144-198 g
105 kg / 231 lb	126-168 g	147-189 g	168-231 g

Endurance base uses 1.2-1.6 g/kg, mixed sport uses 1.4-1.8 g/kg, and strength/cut uses 1.6-2.2 g/kg.

Adjust Protein by Training Phase

Phase	Suggested Range	Why It Changes
Base endurance block	1.2-1.6 g/kg	Supports recovery without displacing needed carbohydrates.
Hypertrophy or strength block	1.6-2.2 g/kg	Matches higher repair demands from resistance training volume.
Two-a-day or heavy mixed training	1.6-2.0 g/kg	Useful when endurance and strength work overlap.
Weight-class cut	1.8-2.2 g/kg	Helps preserve lean mass while calories are restricted.
Injury or return to play	1.6-2.2 g/kg	Supports tissue repair when training volume may be reduced.

Athlete Protein Distribution

Before Training

A mixed meal with protein and carbs 2-4 hours before training works well for most athletes. Keep fiber and fat lower if you train with a sensitive stomach.

After Training

Aim for 20-40 g of high-quality protein within a few hours after training, especially if your next meal is far away.

Across the Day

Four protein feedings is a practical default: breakfast, lunch, post-training or snack, and dinner. Total daily intake still matters most.

Formula Used for Athlete Protein Targets

Athlete targets start with the standard protein equation, then move the recommendation toward the higher end when training volume, activity level, or cutting demands are higher.

Input	Formula	How it is used
Base equation	daily protein = effective body weight in kg × g/kg target	Current body weight is used unless advanced body-fat input suggests adjusted weight is more appropriate.
Sport range	endurance 1.2-1.6, mixed sport 1.4-1.8, strength/power 1.6-2.2 g/kg	The calculator defaults to muscle gain because athlete pages are commonly used during heavy training blocks.
Activity adjustment	higher activity nudges minimum and recommended values upward	Two-a-day training, weight-class cuts, and high-volume lifting usually justify the upper half of the range.

Athletes should keep carbohydrate and total energy high enough for the sport; protein should not crowd out fuel.

Worked Example for a 75 kg Athlete

A 75 kg athlete will land in different protein zones depending on sport type and current training phase.

1. Endurance base block: 75 kg × 1.2-1.6 g/kg = 90-120 g/day.
2. Team-sport or mixed training: 75 kg × 1.4-1.8 g/kg = 105-135 g/day.
3. Strength block or weight-class cut: 75 kg × 1.6-2.2 g/kg = 120-165 g/day.
4. Across four eating occasions, 135 g/day is roughly 34 g per meal.

For a hard mixed-training week, a practical target is often 130-150 g/day before individual adjustment.

When to Use This Calculator

Use this page for sport trainingBest for endurance, team sport, strength sport, and mixed training blocks.Use muscle-gain calculator for hypertrophyBetter when lifting progress and muscle gain are the only goals.Use cutting calculator for a weight classBetter when calories, fat loss pace, and macros matter alongside protein.Use macro calculator for full fuelingBetter when you need carbs, fats, and calories as well as protein.

Matching Guides

Protein for AthletesSport-specific targets, timing, and seasonal adjustments.Pre & Post Workout NutritionHow to coordinate protein and carbs around training.Protein TimingMeal timing and distribution for training adaptations.

Sources reviewed

International Society of Sports Nutrition Position Stand: protein and exercise - Journal of the International Society of Sports Nutrition
International Society of Sports Nutrition Position Stand: nutrient timing - PubMed
International Society of Sports Nutrition Position Stand: diets and body composition - Journal of the International Society of Sports Nutrition / PMC

Frequently Asked Questions

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Learn More

Protein for Runners →

Protein targets for runners by mileage and goal, with recovery timing, food ideas, calculator links, and sports nutrition citations.

Protein for Powerlifting →

Protein targets for powerlifters by body weight, cutting phase, and training block, with research-backed citations and related calculators.

Pre & Post Workout Nutrition Guide: What to Eat & When →

Evidence-based pre- and post-workout nutrition guidance for protein, carbs, timing, and recovery.

Disclaimer: This calculator provides estimates based on published research. Individual needs vary based on sport, training volume, and body composition. Consult a sports dietitian for personalized guidance.