Is it possible to build muscle and lose fat at the same time (body recomposition)?

Yes — primarily in beginners, those returning after a break, and individuals with significant body fat. Requires high protein intake (2.2–2.4g/kg) and a small deficit or maintenance calories. Slower than dedicated bulk/cut cycles.

Does protein timing around workouts matter?

It matters less than total daily protein. If total protein is adequate (1.6–2.2g/kg), precise timing has minimal additional benefit. That said, a protein-containing meal 1–2 hours before and after training is a reasonable practice.

How many calories should I eat to build muscle?

Your TDEE + 100–300 kcal/day. More than this primarily adds body fat. Use FreeBMIKit’s TDEE Calculator to find your maintenance calories first.

Is whey protein better than plant protein for muscle building?

Whey has higher leucine content and superior amino acid profile. However, multiple studies show equal hypertrophy outcomes when total protein is matched and leucine is adequate. Pea protein performs comparably to whey in well-designed trials.

How do I calculate my protein and macro targets for muscle building?

FreeBMIKit’s Macro Calculator and TDEE Calculator work together — enter your goal (Muscle Gain) to get personalized protein, carb, and fat targets based on your body weight and activity level.

Nutrition for Muscle Building: What Science Says About Protein, Timing, and Calories

The Calorie Surplus: How Much Is Needed

Muscle tissue contains roughly 100–150 kcal per gram of protein laid down. Net rates of muscle gain: untrained beginners can gain 1–2 kg lean mass/month; intermediate lifters 0.5–1 kg/month; advanced 0.25–0.5 kg/month. Required surplus: only 100–300 kcal/day above TDEE for natural muscle gain. Larger surpluses primarily add fat, not extra muscle beyond a certain threshold.

Protein: The Non-Negotiable

Current consensus (International Society of Sports Nutrition): 1.6–2.2g protein/kg body weight/day for maximizing muscle protein synthesis (MPS). Beyond 2.2g/kg shows diminishing returns. Leucine is the key amino acid that triggers MPS — each meal should contain 2–3g leucine (roughly 20–40g of quality protein). All amino acids must be available simultaneously for optimal MPS — meal composition matters.

Protein Distribution Matters

Spreading protein evenly throughout the day (3–4 meals with 30–40g protein each) produces greater 24-hour MPS than one large protein bolus. The “anabolic window” is real but wider than the gym myth suggests — MPS remains elevated for 3–5 hours after training. A pre-sleep protein dose (40g casein or slow-digesting protein) stimulates overnight MPS.

Carbohydrates for Performance and Recovery

Carbs fuel high-intensity resistance training (via glycolysis and stored glycogen). Low-carb diets impair training performance and reduce training volume — which reduces the muscle-building stimulus. Peri-workout carbs (before and after training) replenish glycogen and reduce muscle protein breakdown. Target: 3–5g/kg carbohydrates for moderate training volume.

The Role of Creatine

Creatine monohydrate is the most researched and proven legal performance supplement. 3–5g/day increases phosphocreatine stores → higher training intensity → greater hypertrophic stimulus. Direct: creatine also has modest anabolic signaling effects independent of training intensity. Compatible with all protein sources including vegan protein (vegans respond more strongly — lower dietary creatine baseline).

Vegan Muscle Building

Vegan athletes can build muscle equivalently to omnivores given: adequate total protein (may need 2.0–2.2g/kg given lower leucine density of plant proteins), emphasis on soy, pea, tempeh (highest leucine plant sources), creatine supplementation (essential — no dietary creatine), and vitamin B12 supplementation.