Bulk or cut first? Cut first if you carry a lot of body fat, bulk first if you are lean, and recomp if you are a beginner in between. Rates and rules.
It is usually better to cut first if you carry a lot of body fat and bulk first if you are already lean. A common rule of thumb is to cut first above roughly 20% body fat for men or 30% for women, and bulk first below about 15% or 25%. In between, beginners can recomp: eat near maintenance, get plenty of protein, and lift hard, because new lifters can gain muscle while losing fat.
Bulk or cut first is one of the most common questions new lifters ask, and the answer depends less on your goal than on where you are starting. Two people who both want to look more muscular can need opposite plans.
This guide gives you a simple way to decide, what the research says about building muscle in a deficit, and how fast to cut or bulk once you pick a direction.
It is better to cut first if you have a lot of body fat, and to bulk first if you are lean. If you are somewhere in the middle and new to lifting, you often do not need to choose: you can lose fat and build muscle at the same time.
The reasoning is practical. Bulking from a high body fat level adds more fat on top, makes the eventual cut longer, and hides the muscle you build. Cutting when you are already lean leaves little fat to lose and makes it harder to gain muscle. The body fat cutoffs below are rules of thumb used by coaches, not lines drawn by research, so treat them as a starting point.
Decide by your current body fat, your training experience, and what bothers you most when you look in the mirror. This table covers the common cases:
| Your situation | Best first phase | Why |
|---|---|---|
| Lean (under ~15% body fat for men, ~25% for women) and want more size | Bulk | Little fat to lose; a small surplus helps you build muscle faster |
| Higher body fat (over ~20% for men, ~30% for women) | Cut | Losing fat first makes later muscle gain easier to see and the next bulk cleaner |
| In between and new to lifting | Recomp at or near maintenance | Beginners can gain muscle while slowly losing fat |
| In between and lifting for years | Pick the goal you care about more | Trained lifters gain muscle slowly in a deficit, so phases work better |
| Skinny-fat (low muscle, some belly fat) | Recomp, then a slow bulk | Building muscle changes your shape more than losing a few pounds |
If you cannot measure body fat, use simpler signs. If you can see some outline of your abs in good light, you are probably lean enough to bulk. If your waist is the first thing you want to change, cut first. Ab exercises build the muscle underneath but will not burn the fat over it, as our guide to the best ab exercises for building muscle explains.
Yes, beginners and people returning to training can often build muscle while losing fat, especially with high protein and hard training. In a 2016 trial by Longland and colleagues, young men ate about 40% below their energy needs for 4 weeks while doing resistance training and interval training 6 days a week. The group eating 2.4 g of protein per kg of body weight gained 1.2 kg of lean mass and lost 4.8 kg of fat, while the group eating 1.2 g/kg gained only 0.1 kg of lean mass and lost 3.5 kg of fat.
The rate of weight loss matters too. In a 2011 study by Garthe and colleagues, elite athletes assigned to lose about 0.7% of body weight a week increased lean mass by 2.1%, while those assigned to a faster 1.4% a week saw no lean mass gain.
But there is a limit. A 2022 meta-analysis by Murphy and Koehler found that lifting in an energy deficit impaired lean mass gains compared with lifting without one, though strength gains were similar, and that a deficit of about 500 calories a day prevented lean mass gains. So a cut can hold or slowly build muscle, but a bulk builds it faster once you are lean.
Bulking from a high body fat level mostly adds fat, and the extra muscle is hard to see under it. Muscle growth is slow, so a surplus only helps up to a point; past that, the extra calories are stored as fat.
A 2019 review by Iraki and colleagues recommended novice and intermediate lifters gain only about 0.25 to 0.5% of body weight per week on a bulk, and closer to 0.25% for advanced lifters, for whom they cautioned that gaining 2 kg (4.4 lb) a month may add unnecessary fat. If you start at a higher body fat, even that slow gain stacks on top of fat you would eventually want to lose. Our guide on how many calories to eat to bulk gives surplus targets by body weight.
Body recomposition, or recomp, means eating around maintenance while lifting hard so you lose fat and gain muscle at the same time. Your scale weight may barely move, but your waist gets smaller and your lifts go up.
It works best for:
It works less well for lean, experienced lifters, who usually make faster progress with a dedicated bulk or cut. Whatever you choose, keep protein high; our guide on how much protein you need to build muscle covers the numbers.
Cut at about 0.5 to 1% of body weight per week, and bulk at about 0.25 to 0.5% per week. Slower is better for keeping or building muscle in both directions.
| Phase | Weekly rate of change | At 180 lb (82 kg) | Source |
|---|---|---|---|
| Cut | Lose 0.5 to 1% of body weight | 0.9 to 1.8 lb a week | Helms 2014 |
| Lean cut, muscle-focused | Lose about 0.7% of body weight | About 1.3 lb a week | Garthe 2011 |
| Recomp | Roughly stable weight | Within a pound or two a month | Maintenance intake |
| Bulk (novice or intermediate) | Gain 0.25 to 0.5% of body weight | 0.45 to 0.9 lb a week | Iraki 2019 |
Helms and colleagues' 2014 recommendations for natural bodybuilders set calories to lose about 0.5 to 1% of body weight a week to maximize muscle retention. Our guide on how to cut without losing muscle covers the rest of a cut.
Your training should look much the same on a bulk, a cut, or a recomp: lift hard, track your sets, and try to add weight or reps over time. Lifting is the signal that tells your body to build or keep muscle; your calories decide whether it gains or loses fat around it.
On a cut, holding your strength is a win, and small gains are a bonus. On a bulk, your lifts should be going up steadily; if the scale climbs but your lifts do not, you are adding mostly fat.
Alexandros is an iPhone app that works like a personal lifting coach. It does not track food. You log sessions in plain English, rate how hard each set felt, and it tells you the weight and reps for next time, so you can see whether a bulk or cut is keeping your training moving. Alexandros is in early access; its terms say certain features require a paid subscription through the App Store.
Most skinny-fat beginners do best with a recomp: eat near maintenance, eat plenty of protein, and lift three times a week. Building muscle changes your shape more than losing a few pounds.
A common rule of thumb is to cut first above roughly 20% body fat for men or 30% for women. These cutoffs are guidelines from coaching practice, not research findings.
Yes, especially as a beginner. In a 2016 trial by Longland and colleagues, young men in a large calorie deficit gained 1.2 kg of lean mass while losing 4.8 kg of fat on a high-protein diet.
Cut until you reach your target body fat, then bulk. At 0.5 to 1% of body weight a week, losing 10% of your body weight takes roughly 10 to 20 weeks.
It is usually inefficient. Most of the extra weight on a bulk is fat when you start with a lot of body fat, so cutting or recomping first tends to get you to your goal sooner.
