Bodybuilding Diet for Beginners: Where to Start
By CoachAk · · 7 min read
A bodybuilding diet for beginners is simpler than the internet makes it look. Get your calories right for your goal, eat enough protein, fill the rest with carbohydrate and fat from mostly whole foods, and do it consistently for months. Meal timing, "clean" foods, carb cut-offs and most supplements can wait. Here is where to start, in the order that matters.
The short answer
- Set your calories for your goal: a little above maintenance to build muscle, a little below to lose fat.
- Eat 1.6 to 2.2 g of protein per kg of body weight a day, spread over 3 to 6 meals.
- Split the rest between carbohydrate, which fuels your training, and a moderate amount of fat.
- Build meals from whole foods: a protein, a carbohydrate, fruit or vegetables and a little fat.
- Weigh yourself and adjust based on your weekly average, not on single days.
If you have kidney disease, diabetes or another health condition, speak to your doctor before making big changes to your diet.
Step 1: Set your calories for your goal
Everything starts from your maintenance calories: what you can eat each day without gaining or losing weight. A calculator gives you an estimate, and two or three weeks of tracking tells you the real number. See how to calculate your maintenance calories, or use the free calorie and macro calculator.
Then adjust it for your goal:
| Goal | Calories | Target rate of change |
|---|---|---|
| Build muscle | About 5 to 10% above maintenance | Gain about 1 to 1.5% of body weight a month as a beginner |
| Lose fat | Below maintenance | Lose about 0.5 to 1% of body weight a week |
| Not sure yet | At maintenance | Hold steady while you learn the basics |
The free calculator uses a surplus in that range. The target rate of gain sits at the cautious end of a 2019 review of off-season nutrition for natural bodybuilders by Iraki and colleagues in Sports, which recommends that beginners and intermediates gain about 0.25 to 0.5% of body weight a week (roughly 1 to 2% a month). The fat loss rate comes from a 2014 review of contest prep nutrition by Helms, Aragon and Fitschen in the Journal of the International Society of Sports Nutrition, which found losing about 0.5 to 1% of body weight a week helps keep muscle.
For a 75 kg (165 lb) beginner building muscle, that is a gain of roughly 0.75 to 1.1 kg (1.7 to 2.5 lb) a month. Faster is not better: muscle grows slowly, so a bigger surplus mostly adds fat.
Step 2: Hit your protein
Protein is the building material for muscle, and the one macro worth being precise about.
A 2018 meta-analysis by Morton and colleagues in the British Journal of Sports Medicine pooled 49 studies and found that the benefit of protein for muscle gain levelled off at about 1.6 g per kg of body weight a day, with 2.2 g as a sensible upper end to cover most people. For a 75 kg (165 lb) lifter, that is about 120 to 165 g a day.
How to get there:
- Spread it out. The Iraki review suggests 3 to 6 meals with about 0.40 to 0.55 g of protein per kg in each. For a 75 kg lifter, that is roughly 30 to 40 g a meal.
- Start the day with protein. Breakfast is often the meal with the least protein in it.
- Use whole foods first, with a protein shake as a convenience.
On a fat loss diet, aim towards the top of the range. For the full detail and food lists, see how much protein you need to build muscle, or use the protein calculator.
Step 3: Split the rest between carbs and fats
Once protein is set, the rest of your calories come from carbohydrate and fat. The Iraki review recommends:
- Fat: about 0.5 to 1.5 g per kg of body weight a day. Enough for health and for meals you enjoy.
- Carbohydrate: the rest, aiming for at least 3 to 5 g per kg a day to fuel hard training.
Protein and carbohydrate have about 4 calories per gram and fat about 9 (NHS figures). Here is how that works for a 75 kg lifter eating 2,800 calories a day to build muscle:
| Grams | Calories | |
|---|---|---|
| Protein (2 g per kg) | 150 g | 600 |
| Fat (1 g per kg) | 75 g | 675 |
| Carbohydrate (the rest) | about 380 g | about 1,525 |
| Total | 2,800 |
That is about 5 g of carbohydrate per kg, which meets the review's minimum, and fat at about a quarter of calories, the same share the free calculator uses. On a fat loss diet, the calories come down, protein stays high, and most of the cut comes from carbohydrate and fat.
The bodybuilding diet for beginners: what to eat
You do not need special "bodybuilding foods". The NHS Eatwell Guide covers most of it, with a little more protein than most people eat:
- Fruit and vegetables: at least 5 portions a day, in a variety.
- Starchy carbohydrates: choose wholegrain or higher-fibre versions where you can, such as brown rice, wholewheat pasta and potatoes with the skins on.
- Fibre: the UK guideline is 30 g a day, and the NHS says most adults only eat about 20 g.
- Fish: at least 2 portions a week, one of them oily, such as salmon, sardines or mackerel.
- Drinks: 6 to 8 cups or glasses of fluid a day.
A simple way to build any meal is to put one food from each column on the plate:
| Protein | Carbohydrate | Fruit and veg | Fat |
|---|---|---|---|
| Chicken, turkey, lean beef | Rice, pasta, potatoes | Any vegetables | Olive oil |
| Fish, prawns | Oats, bread, wraps | Berries, bananas, apples | Nuts and seeds |
| Eggs, Greek yoghurt, cottage cheese | Beans, lentils | Salad | Avocado |
| Tofu, tempeh, whey or plant protein | Fruit, cereal | Frozen veg mixes | Cheese |
Mostly whole foods, plus a few foods you simply enjoy, is the version you will still be following in a year.
A sample day
Here is what a day could look like for a 75 kg lifter building muscle. Portions depend on your own targets.
| Meal | What |
|---|---|
| Breakfast | Porridge with milk, berries and a scoop of whey, plus two eggs |
| Lunch | Chicken wrap with salad, a piece of fruit and a yoghurt |
| Before training | Banana and a slice of toast with peanut butter |
| After training | Salmon, rice and vegetables cooked in olive oil |
| Evening | Greek yoghurt or cottage cheese with nuts |
Four or five meals, each with a protein, each easy to repeat.
What not to worry about yet
Beginners lose a lot of energy on details that barely matter. These can wait:
- The "anabolic window". A 2013 meta-analysis by Schoenfeld, Aragon and Krieger in the Journal of the International Society of Sports Nutrition found that once total protein was accounted for, eating protein right around training made no significant difference to muscle or strength. Eating enough protein across the day was what counted.
- The perfect number of meals. Anywhere from 3 to 6 a day works, which is the range both the Helms and Iraki reviews give. Pick what fits your day.
- Carbs at night. Your total for the day matters far more than the clock.
- "Clean" and "dirty" foods. No single food builds or ruins a physique. Your totals and your habits over weeks do.
- Supplements. Most are not needed. Creatine has the best evidence for lifters: see creatine: what it does and doesn't do. Protein powder is just food in a convenient form.
- Perfect tracking. Weigh and log your food for two or three weeks to learn what your targets look like. After that, you can decide how closely you need to keep tracking.
How to know it is working
- Weigh yourself every morning and compare weekly averages with your target rate.
- Keep a training log. If your lifts are going up, your diet is supporting your training.
- Give each change two to three weeks before judging it, then make one small change, such as adding or removing a snack, if the trend is off target.
Where coaching helps
The basics of a bodybuilding diet for beginners fit on one page. The hard part is adjusting them as your body responds, and staying consistent when work, travel and social life get in the way.
With one-to-one coaching from CoachAk, your daily calorie and macro targets, step target and training program are set for you in the app, and updated as your body responds. You log your weight daily and see a smoothed trend, and each week you send a check-in covering your weight, training and nutrition adherence, hunger, energy, sleep and more. Your coach replies with written feedback explaining what changes next week and why, and you can message your coach directly between check-ins.
If you want your nutrition set up and adjusted for you, apply for coaching.
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