Lean bulk

Building muscle is easier when you eat a little more than you burn. The key word is little. A small surplus gives your body the raw material to grow; a large one mostly adds fat that you will later have to diet off.

How big a surplus

Muscle grows slowly, so it can only use a small amount of extra energy. The app sets your surplus from a target rate of weight gain rather than a fixed number of calories.

The surplus is weekly kg x 7,700 / 7, using the usual estimate of 7,700 kcal per kg of body weight.

0.25% a week is a good default. That is roughly 0.7 kg a month for a 70 kg lifter.

Who can go faster

• Beginners in their first year can gain muscle quickly and do well towards 0.5% a week.
• Underweight or very lean people who struggle to eat can use the faster end.
• Experienced lifters gain muscle slowly, so 0.1-0.25% a week keeps fat gain small.
• Anyone starting with a higher body fat may do better with a fat-loss phase or a recomposition first. See fat loss.

Set your numbers in the TDEE calculator, or see the full method in calories and TDEE.

Macros for a bulk

• Protein: 1.8 g per kg of body weight. The surplus itself helps protect muscle, so you need a little less than on a cut.
• Fat: 0.8 g per kg, and at least 20% of calories.
• Carbs: the rest. On a bulk, carbs end up doing most of the work, fuelling harder training and more volume.
• Fibre: 14 g per 1,000 kcal.

The macros calculator turns this into grams, and macros explained has a worked example.

Training is what makes it lean

A surplus without hard training is just weight gain. To turn food into muscle:

• Follow a structured programme with each muscle trained about twice a week.
• Use double progression and log every set, so the weights actually go up.
• Keep compounds at 1-3 reps in reserve and isolation work at 0-1.
• Add sets slowly while progress continues, and deload after about 6 weeks or when lifts stall.

How to build muscle covers all of this. If your lifts are not improving after several weeks of eating more, more food is not the fix; your programme or recovery is.

Track and adjust

1. Weigh yourself every morning and use the weekly average.
2. Every two weeks, compare the average with your target pace.
3. Not gaining after two weeks? Add about 150-250 kcal a day.
4. Gaining much faster than planned? Take away about 150-250 kcal.

Also measure your waist every 2-4 weeks. If your waist is climbing much faster than your lifts, the surplus is too big.

The tracker works out your real maintenance from 2-4 weeks of food and weight logs, which removes most of the guesswork.

Avoiding a dirty bulk

A dirty bulk is “eat everything” with no plan: sweets, fried snacks, mass-gainer shakes and a surplus of 800-1,000 kcal or more. The scale moves quickly, but most of that weight is fat. The longer fat-loss phase that follows eats into the time you could have spent building.

Signs you are drifting into one:

• Gaining well over 0.5% of body weight a week for several weeks
• Waist growing fast while lifts creep up slowly
• Feeling sluggish, bloated or out of breath on stairs
• Most extra calories coming from mithai, namkeen, biscuits, fried food and sweetened drinks

Better ways to add calories

If you are someone who finds it hard to eat enough, use dense but wholesome foods:

• A glass of milk with a banana, oats and a spoon of peanut butter
• A handful of groundnuts, almonds or a few dates between meals
• An extra roti, a bigger serving of rice or poha, or an extra katori of dal
• Paneer, eggs, chicken or fish added to existing meals
• A teaspoon of ghee or oil on dal or sabzi (about 45 kcal each)

Mass-gainer powders are mostly expensive sugar and oil. Milk, banana, oats and peanut butter do the same job at a fraction of the cost. See supplements for what is worth buying.

Keep about 80% of your food whole and minimally processed, and leave the other 20% for flexibility so the plan is something you can keep doing.

How long to bulk

A lean bulk works best as a long phase, usually several months. Short bulks of a few weeks rarely build enough muscle to notice. Many people run a bulk until their waist or body fat reaches a level they are not comfortable with, then do a short fat-loss phase and repeat.

Common mistakes

• Calling it a bulk while eating too little protein or too few calories to gain at all
• Eating a huge surplus “to be safe”
• Changing the programme every few weeks
• Skipping sleep; muscle is built in recovery, see sleep and recovery

This is general information, not medical advice; see a doctor if you have diabetes, high cholesterol, a heart condition or any other medical concern before changing your diet.