Nutrition for lean muscle
3000 calorie muscle gain diet plan
A structured eating plan for lean muscle development: low morning carbs, carbohydrates loaded at dinner to fuel overnight recovery, and a slow-digesting casein protein every night. Roughly 3000 calories a day with a protein target of 160 to 200g.
Key principles
| Principle | Guidance |
|---|---|
| Protein target | 160 to 200g per day. Prioritise whole-food sources: eggs, meat, fish, dairy. |
| Carb timing | Minimise starchy carbs at breakfast. Load carbohydrates at dinner (rice, potato, sweet potato, couscous) to fuel overnight recovery and muscle glycogen replenishment. |
| Fats | Keep healthy fats moderate across all meals. Avocado, olive oil, nuts, eggs, and fatty fish are your primary sources. |
| Casein protocol | Take 1 scoop casein protein after dinner every night. Casein digests slowly (7 to 8 hours), feeding muscles through sleep. |
| Training days | Increase dinner carbohydrates by 20 to 30% on heavy training days. Add an extra 1/2 cup of rice or potato. |
| Hydration | Aim for 2.5 to 3L water per day. Electrolytes from food sources are sufficient with this plan. |
Day 1 – Monday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | 3-egg omelette with spinach, mushrooms and cheese. 1/2 avocado. Black coffee or green tea. No toast. | 420 |
| Morning snack | 30g mixed nuts, 2 hard-boiled eggs. | 280 |
| Lunch | Grilled chicken breast 180g, large green salad with olive oil dressing, 1/2 avocado. | 550 |
| Afternoon snack | Greek yogurt (full-fat) with a small handful of berries plus 1 tbsp chia seeds. | 250 |
| Dinner | 200g grilled salmon, 1.5 cups brown rice, roasted vegetables (zucchini, capsicum, broccoli) with olive oil. | 900 |
| After dinner | 1 scoop casein protein in 250ml full-fat milk or water. Optional: 1 tbsp almond butter. | 350 |
| Evening snack | 1/4 cup guacamole with vegetable sticks, or 30g dark chocolate. | 250 |
| Daily total | 3000 |
Day 2 – Tuesday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | Protein smoothie: 1 scoop whey, 1 cup spinach, 1/2 avocado, 250ml almond milk, 1 tbsp almond butter. | 430 |
| Morning snack | 2 hard-boiled eggs, 1 small pear. | 240 |
| Lunch | 180g canned tuna on large mixed green salad with olive oil and avocado, 1 small whole grain roll. | 560 |
| Afternoon snack | 1 cup full-fat cottage cheese with 1 tsp honey. | 260 |
| Dinner | 200g baked chicken thigh, 1.5 cups white jasmine rice, steamed edamame and green beans. | 920 |
| After dinner | 1 scoop casein protein mixed in 250ml full-fat milk. Stir in 1 tsp honey if desired. | 360 |
| Evening snack | 30g mixed nuts plus 20g 85% dark chocolate. | 250 |
| Daily total | 3020 |
Day 3 – Wednesday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | 3 scrambled eggs cooked in butter, sauteed kale, 2 turkey rashers. No carbs. | 410 |
| Morning snack | 1 small apple, 30g cheddar cheese. | 230 |
| Lunch | Beef burrito bowl: 180g lean mince, 1/2 cup black beans, roasted capsicum, sour cream, salsa. No rice. | 570 |
| Afternoon snack | Full-fat Greek yogurt 200g, 1 tbsp chia seeds, cinnamon. | 240 |
| Dinner | 200g lean beef stir-fry with mixed vegetables, 1.5 cups basmati rice, sesame oil and tamari. | 930 |
| After dinner | 1 scoop casein protein plus 250ml full-fat milk. Add frozen berries for flavour. | 350 |
| Evening snack | 2 tbsp peanut butter on 1 small rice cake. | 270 |
| Daily total | 3000 |
Day 4 – Thursday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | Frittata: 4 eggs, sweet potato (small, pre-baked), feta, spinach. Keep portions small on sweet potato. | 440 |
| Morning snack | 1 scoop protein powder in water, 20g macadamias. | 260 |
| Lunch | Lentil soup (200ml coconut milk base) with a poached egg on top, large side salad. | 560 |
| Afternoon snack | 200g full-fat cottage cheese plus sliced cucumber and cherry tomatoes. | 250 |
| Dinner | 200g grilled pork tenderloin, 1.5 cups roasted sweet potato wedges, steamed broccolini with olive oil. | 900 |
| After dinner | 1 scoop casein protein stirred into 250ml milk with a pinch of cinnamon. | 360 |
| Evening snack | 30g mixed nuts plus 1 small mandarin. | 240 |
| Daily total | 3010 |
Day 5 – Friday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | 2 poached eggs, 1/2 avocado, 4 slices smoked salmon, handful of rocket. No bread. | 430 |
| Morning snack | 1 cup edamame (salted), 1 boiled egg. | 260 |
| Lunch | 180g grilled chicken wrap (small whole wheat tortilla), lots of salad greens, avocado, yogurt dressing. | 570 |
| Afternoon snack | Smoothie: 1 banana, 1 tbsp peanut butter, 1 cup full-fat milk, handful of ice. | 320 |
| Dinner | 200g baked white fish, 1.5 cups roasted potato with rosemary and olive oil, sauteed kale with garlic. | 870 |
| After dinner | 1 scoop casein protein plus 250ml milk. Blend with 1/2 frozen banana for a thicker shake. | 370 |
| Evening snack | 30g almonds plus 20g dark chocolate. | 250 |
| Daily total | 3070 |
Day 6 – Saturday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | Acai bowl: blended acai, banana (half), spinach, protein powder. Keep granola topping minimal. | 420 |
| Morning snack | 3 slices turkey breast, 30g cheese, cucumber. | 250 |
| Lunch | Quinoa and black bean bowl with roasted vegetables, avocado, Greek yogurt dollop. Generous serve. | 580 |
| Afternoon snack | 2 hard-boiled eggs, 1 small handful mixed nuts. | 270 |
| Dinner | 200g lamb backstrap, 1.5 cups couscous with roasted root vegetables (parsnip, carrot, beet). | 920 |
| After dinner | 1 scoop casein protein mixed in 300ml full-fat milk. A slow evening protein boost. | 380 |
| Evening snack | 1 cup full-fat yogurt with a drizzle of honey and walnuts. | 250 |
| Daily total | 3070 |
Day 7 – Sunday
| Meal | Food and preparation | ~kcal |
|---|---|---|
| Breakfast | 3-egg omelette with goat cheese and wilted spinach, 1/2 avocado, black coffee. No toast. | 440 |
| Morning snack | 1 scoop protein powder in almond milk, 1 small pear. | 260 |
| Lunch | 180g grilled lean steak, large rocket and parmesan salad with balsamic, 1/2 avocado. | 560 |
| Afternoon snack | 200g full-fat Greek yogurt with chia seeds and cinnamon. | 250 |
| Dinner | 200g grilled salmon, baked potato (large) with olive oil and sour cream, steamed asparagus. | 930 |
| After dinner | 1 scoop casein protein plus 250ml full-fat milk. This is your muscle-repair shake, do not skip. | 360 |
| Evening snack | 1/4 cup hummus with veggie sticks, or 2 slices turkey. | 260 |
| Daily total | 3060 |
Supplement notes
Casein protein
Use a high-quality micellar casein supplement (for example Optimum Nutrition Gold Standard Casein, or a grass-fed micellar casein). Avoid casein blends with high sugar content. Mix with full-fat milk for an additional 150 to 200 kcal and extra leucine and calcium from dairy, or use water if calories are tracking high that day.
Optional additions
Creatine monohydrate (5g daily, any time). Magnesium bisglycinate (350mg before bed, particularly beneficial alongside casein). Zinc if dietary intake is low. Vitamin D3 if sunlight exposure is limited.
Frequently asked questions
How much protein do you need to build muscle on a 3000 calorie plan?
This 3000-calorie-a-day muscle-gain plan targets around 160 to 200 grams of protein daily, spread across meals and snacks. Protein is the key driver of muscle repair and growth, so it features at breakfast, lunch, dinner and in snacks. The plan also keeps overall calories high enough to support gaining lean muscle, with around 2.5 to 3 litres of water a day to stay well hydrated.
Why eat carbs at dinner and casein before bed for muscle gain?
The plan keeps morning carbohydrates low and loads carbs at dinner with foods like rice, potato and sweet potato, which supports recovery around the evening. Casein protein is taken after dinner each night because it digests slowly over about 7 to 8 hours, feeding the muscles through sleep when overnight recovery happens. On training days, dinner carbohydrates are increased by roughly 20 to 30% to match the extra demand.
What does a muscle gain meal plan look like?
A typical day combines lower-carb, protein-rich breakfasts like omelettes or egg-based smoothies, protein with carbohydrate at lunch, an afternoon snack, a carbohydrate-loaded dinner such as salmon with rice or beef stir-fry with rice, a scoop of slow-digesting casein after dinner, and an evening snack, totalling around 3000 calories. Moderate healthy fats from avocado, olive oil, nuts and eggs feature throughout, with 2.5 to 3 litres of water across the day.
Reviewed by Rohan Smith, BHSc Nutritional Medicine · Elemental Health & Nutrition, Adelaide. Last reviewed 13 June 2026.
Important: This summary is general information, not personalised medical advice, diagnosis, or a treatment protocol. Speak with a qualified practitioner about your individual situation. Book a consultation →