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Macronutrient Guide

Protein Calculator

Calculate your optimal daily protein target to support muscle maintenance, muscle hypertrophy, or body recomposition goals.

Protein Intake Planner

Specify your current bodyweight and primary fitness objective.

Protein Requirements and Exercise Science

Protein is the main building block of the human body, providing essential amino acids that repair micro-tears in muscle tissue caused by exercise. For sedentary adults, the baseline RDA is established to prevent deficiency. However, those engaged in physical training require substantially higher amounts to support tissue recovery.

During a calorie deficit (fat loss phase), high protein intake becomes even more critical. Because the body lacks sufficient energy from food, it will catabolize its own muscle tissue if dietary protein is inadequate. Aiming for the upper end of the recommended range protects your hard-earned muscle mass.

High-Quality Protein Sources

  • Animal sources: Chicken breast, turkey, lean beef, eggs, wild-caught fish, and dairy products like Greek yogurt or cottage cheese provide complete amino acid profiles.
  • Plant sources: Tofu, tempeh, seitan, lentils, chickpeas, edamame, and quinoa are excellent plant-based proteins, though mixing sources is recommended to ensure complete amino acid coverage.
  • Supplements: Whey isolate, casein, pea protein, and soy protein powders can assist you in hitting daily goals when food sources aren't convenient. Keep track of your full daily nutrient ratios using our Macro Calculator.

Frequently asked questions.

For general health, the Recommended Dietary Allowance (RDA) is 0.8 grams per kilogram of body weight. However, for active individuals, fat loss, or muscle building, recommendations range from 1.2 to 2.2 grams per kilogram (0.54 to 1.0 grams per pound) of body weight.
Protein has a high thermic effect of food (TEF), meaning your body burns more calories digesting it compared to fats and carbs. It also increases satiety, helping you feel full longer, and prevents the loss of lean muscle tissue during a calorie deficit.
For healthy individuals, higher protein intakes (up to 3.3g/kg) are generally safe and do not cause kidney issues. However, consuming protein in extreme excess of your energy needs will simply be stored as fat or burned as fuel, without adding additional muscle-building benefits.