I Want to Build Muscle but Don't Know What to Eat

Building muscle is a two-part equation, and most people only focus on one part. They train hard in the gym but eat randomly at home. The result: months of effort with minimal visible progress. The truth is that what you eat matters just as much as how you train — and in some ways, it matters more.

This guide covers the nutrition side of muscle building in plain language. No bodybuilder jargon. No supplement stack recommendations. Just the fundamentals that actually drive muscle growth, backed by research, with a practical meal plan you can start using today.

What Are the Three Fundamentals of Muscle Building Nutrition?

Muscle growth requires three things working together:

1. A calorie surplus — eating more calories than your body burns.
2. Adequate protein — providing the raw building blocks for muscle tissue.
3. Progressive overload in training — giving your muscles a reason to grow.

This guide focuses on the first two. Without them, even the best training program will produce disappointing results. A 2019 meta-analysis in the British Journal of Sports Medicine confirmed that calorie surplus and protein intake were the two strongest nutritional predictors of muscle gain during resistance training.

How Many Extra Calories Do I Need to Build Muscle?

You need a calorie surplus, but not a massive one. Your body can only build a limited amount of muscle per day — roughly 0.5 to 1 pound of muscle per month for most natural lifters, according to research by Alan Aragon and published in the Journal of the International Society of Sports Nutrition.

Any excess calories beyond what is needed for muscle synthesis get stored as fat. This is why "dirty bulking" (eating everything in sight) leads to gaining mostly fat with a little muscle mixed in.

Recommended Surplus by Experience Level

Experience Level	Recommended Surplus	Expected Monthly Muscle Gain
Beginner (0-1 year)	300-500 cal/day	1.5-2.5 lbs (0.7-1.1 kg)
Intermediate (1-3 years)	200-350 cal/day	1-1.5 lbs (0.45-0.7 kg)
Advanced (3+ years)	100-250 cal/day	0.5-1 lb (0.2-0.45 kg)

For most beginners, a surplus of 300-400 calories above your TDEE (Total Daily Energy Expenditure) is the sweet spot. If your TDEE is 2,500, aim for 2,800-2,900 calories per day.

Nutrola calculates your TDEE and target calories during setup. As you log your meals, the app tracks whether you are consistently hitting your surplus — which is the single biggest factor in whether you gain muscle or spin your wheels.

How Much Protein Do I Need to Build Muscle?

Protein is the macronutrient that directly builds and repairs muscle tissue. Without enough of it, a calorie surplus just adds fat.

The most comprehensive meta-analysis on protein and muscle growth, published in the British Journal of Sports Medicine in 2018, analyzed 49 studies and concluded that the optimal protein intake for maximizing muscle gains is 1.6 to 2.2 grams per kilogram of bodyweight per day.

Protein Targets by Bodyweight

Bodyweight	Minimum Target (1.6 g/kg)	Optimal Target (2.0 g/kg)	Upper Range (2.2 g/kg)
60 kg (132 lbs)	96g per day	120g per day	132g per day
70 kg (154 lbs)	112g per day	140g per day	154g per day
80 kg (176 lbs)	128g per day	160g per day	176g per day
90 kg (198 lbs)	144g per day	180g per day	198g per day
100 kg (220 lbs)	160g per day	200g per day	220g per day

If you are significantly overweight, base your calculation on your lean body mass or target bodyweight instead of your current weight.

Best Protein Sources for Muscle Building

Food	Serving	Protein	Calories
Chicken breast	150g cooked	46g	248
Greek yogurt (0% fat)	200g	20g	118
Eggs	3 large	18g	234
Lean ground beef (93%)	150g cooked	32g	232
Salmon	150g cooked	34g	312
Whey protein powder	1 scoop (30g)	24g	120
Cottage cheese	200g	22g	160
Lentils	200g cooked	18g	230
Tofu (firm)	200g	20g	200
Tuna (canned, in water)	1 can (120g)	30g	132

Nutrola's 100% nutritionist-verified database means every protein value is accurate. No guessing whether "chicken breast" means raw or cooked, skin-on or skinless. Each entry specifies exactly what you are logging.

What Should I Eat Before and After Workouts?

Meal timing is less critical than total daily intake, but it does matter. A position stand by the International Society of Sports Nutrition concluded that consuming protein within 2 hours before and after training can enhance muscle protein synthesis.

Pre-Workout Nutrition (1-2 Hours Before)

Your goal: fuel the session with carbs and provide amino acids from protein.

Pre-Workout Meal Ideas	Protein	Carbs	Calories
Oatmeal with protein powder and banana	30g	65g	450
Rice cakes with peanut butter and a protein shake	28g	45g	420
Chicken wrap with rice and vegetables	35g	50g	480
Greek yogurt with granola and berries	22g	45g	380

Post-Workout Nutrition (Within 1-2 Hours After)

Your goal: replenish glycogen with carbs and provide protein for muscle repair.

Post-Workout Meal Ideas	Protein	Carbs	Calories
Protein shake with banana and oats	30g	55g	420
Grilled chicken with sweet potato and vegetables	40g	50g	480
Salmon with rice and steamed broccoli	35g	55g	510
3-egg omelet with toast and fruit	24g	40g	400

Do not overthink timing. If you train at 7 AM and had dinner at 8 PM the night before, having a small snack before training and a solid meal after is enough. The total daily protein and calorie intake always matters more than the exact minute you eat.

What Does a 7-Day Muscle Building Meal Plan Look Like?

Here is a complete week of meals at approximately 2,500 calories with 180g of protein per day. Adjust portions up or down based on your specific calorie target.

Day 1

Meal	What to Eat	Calories	Protein
Breakfast	3 eggs scrambled with spinach, 2 slices whole wheat toast, 1/2 avocado	520	28g
Snack	Protein shake with banana	280	30g
Lunch	Grilled chicken breast (180g) with quinoa (1 cup) and roasted vegetables	580	50g
Snack	Greek yogurt (200g) with walnuts (15g)	210	22g
Dinner	Lean ground beef (150g) stir fry with rice (1 cup) and mixed vegetables	580	38g
Snack	Cottage cheese (150g) with blueberries	160	16g
Total		2,330-2,500	184g

Day 2

Meal	What to Eat	Calories	Protein
Breakfast	Overnight oats (60g oats, milk, protein powder, chia seeds, berries)	480	35g
Snack	2 hard-boiled eggs, apple	230	12g
Lunch	Turkey and avocado sandwich on whole grain bread, side salad	520	35g
Snack	Rice cakes (3) with 2 tbsp peanut butter	290	10g
Dinner	Baked salmon (180g) with sweet potato (200g) and asparagus	560	40g
Snack	Protein shake with almond milk	160	26g
Total		2,240-2,500	158-180g

Day 3

Meal	What to Eat	Calories	Protein
Breakfast	Protein pancakes (oats, eggs, protein powder, banana) with berries	480	35g
Snack	Trail mix (40g) with a protein bar	340	22g
Lunch	Chicken and rice bowl with black beans, salsa, and cheese	600	45g
Snack	Cottage cheese (200g) with pineapple	200	22g
Dinner	Grilled steak (150g) with roasted potatoes and green beans	550	38g
Snack	Greek yogurt (150g) with honey	150	15g
Total		2,320-2,500	177g

Day 4

Meal	What to Eat	Calories	Protein
Breakfast	4-egg omelet with mushrooms, peppers, cheese, whole wheat toast	550	36g
Snack	Protein smoothie (protein powder, banana, spinach, almond butter)	350	30g
Lunch	Tuna salad wrap (2 wraps) with mixed greens and tomato	500	40g
Snack	Edamame (150g shelled)	190	17g
Dinner	Chicken thighs (200g) with brown rice and roasted broccoli	580	42g
Snack	Casein shake or glass of milk with a banana	250	18g
Total		2,420-2,500	183g

Day 5

Meal	What to Eat	Calories	Protein
Breakfast	Greek yogurt bowl (250g) with granola, mixed berries, and seeds	420	28g
Snack	2 eggs with whole wheat toast	290	16g
Lunch	Beef and vegetable stew with crusty bread	550	38g
Snack	Apple with 2 tbsp almond butter	270	7g
Dinner	Grilled chicken (180g) with pasta (100g dry) and marinara sauce	620	48g
Snack	Cottage cheese (200g) with walnuts	230	24g
Total		2,380-2,500	161-180g

Day 6

Meal	What to Eat	Calories	Protein
Breakfast	Breakfast burrito (3 eggs, black beans, cheese, salsa, whole wheat tortilla)	550	32g
Snack	Protein bar	220	20g
Lunch	Grilled salmon (150g) with couscous and Mediterranean salad	540	36g
Snack	Greek yogurt (200g) with granola	260	22g
Dinner	Pork tenderloin (180g) with roasted sweet potato and steamed green beans	500	40g
Snack	Protein shake with oats	280	28g
Total		2,350-2,500	178g

Day 7

Meal	What to Eat	Calories	Protein
Breakfast	Smoked salmon on whole grain toast with cream cheese and capers	420	25g
Snack	Hard-boiled eggs (2) with carrot sticks and hummus	270	16g
Lunch	Chicken Caesar salad (large) with whole grain croutons	520	42g
Snack	Banana with protein shake	280	28g
Dinner	Homemade turkey meatballs (200g) with spaghetti and tomato sauce	600	42g
Snack	Cottage cheese (150g) with berries	160	18g
Total		2,250-2,500	171-180g

Log each day in Nutrola to see exactly where you stand on protein and calories. The app's protein tracking makes it easy to spot if you are consistently falling short — the most common mistake beginners make.

What Are the Most Common Muscle Building Nutrition Mistakes?

Mistake 1: Dirty Bulking

Eating 4,000-5,000 calories per day of pizza, burgers, and ice cream will make you gain weight, but most of it will be fat. Your body can only synthesize a limited amount of muscle per day. Everything beyond what is needed for muscle growth and normal function gets stored as fat.

A 2019 study in the Journal of the International Society of Sports Nutrition found that participants in a controlled surplus of 300-500 calories gained similar muscle mass to those in a 700-1,000 calorie surplus, but with significantly less fat gain.

Mistake 2: Surplus Too Large

Related to dirty bulking but subtler. Even eating "clean" foods, a surplus of 800+ calories per day is too much for most natural lifters. You will gain fat faster than muscle, and then you need to cut longer to reveal the muscle you built.

Mistake 3: Not Eating Enough Protein

Hitting your calorie target is necessary but not sufficient. If you eat 2,800 calories but only 80g of protein, you will gain weight — but a disproportionate amount will be fat. Prioritize protein at every meal.

Mistake 4: Inconsistency

Eating 2,800 calories on Monday, 1,800 on Tuesday, 3,500 on Wednesday, and 2,000 on Thursday averages out to 2,525, but the inconsistency makes it harder for your body to optimize muscle protein synthesis.

Aim for consistent daily intake within 100-200 calories of your target. Nutrola's weekly consistency view helps you see how steady your intake has been — not just whether you hit the average.

Mistake 5: Ignoring Carbs

Carbohydrates are not the enemy when building muscle. They fuel your workouts, replenish glycogen, and support recovery. A study in the Journal of Sports Sciences found that low-carb diets during resistance training resulted in less strength gain and more fatigue compared to moderate-carb diets.

Aim for 3-5g of carbs per kilogram of bodyweight per day. For an 80 kg person, that is 240-400g of carbs.

How Do I Know If My Muscle Building Diet Is Working?

Track these indicators over 4-week periods:

Indicator	Good Sign	Warning Sign
Scale weight	Gaining 0.5-1 lb per week	Gaining more than 1.5 lbs per week (too much fat)
Strength	Lifts are increasing over time	Lifts are stagnant despite consistent training
Waist measurement	Staying the same or increasing very slowly	Increasing rapidly (fat gain outpacing muscle)
How clothes fit	Shirts tighter in shoulders and arms	Pants getting tight in the waist
Energy levels	Feeling strong and fueled in workouts	Feeling sluggish or bloated

If you are gaining more than 1.5 pounds per week, reduce your surplus by 100-200 calories. If you are not gaining at all, increase by 100-200 calories. Small adjustments, tracked consistently in Nutrola, keep you in the muscle-building sweet spot.

What Should I Do Right Now?

1. Calculate your protein target using the table above (aim for 2.0g per kg of bodyweight).
2. Calculate your calorie target (TDEE + 300-400 calories for beginners).
3. Pick 2-3 days from the meal plan above and try them this week.
4. Download Nutrola and track your protein and calorie intake for the first week. The photo AI makes logging fast — snap a photo of each meal and the app handles the rest.

Building muscle is a slow process. Expect visible results in 8-12 weeks of consistent training and eating. The key word is consistent. Nutrola helps you stay consistent by making tracking so simple that you actually do it every day — not just when you remember.