September 21, 2026 · Luke

Bulk, Cut, or Recomp? How to Plan Your Phases on a Calendar

How to plan bulk and cut phases: how fast to gain or lose, how long each phase should last, when recomp makes sense, and how to lay it all out on a calendar.

A lot of lifters spend a year trying to do two opposite things at once. Monday they want to get bigger, so they eat more. Thursday they want abs, so they skip dinner. By December they weigh the same, look the same, and feel like the gym doesn't work.

Phases fix that. You pick one job for a stretch of time (gain, lose, or hold), give it an end date, and put it on the calendar. Here's how to choose the job, how fast to go, and how long each phase should last.

The four phases, in plain English

Bulk. Eat a bit more than you burn, so you have fuel to build muscle faster. Some fat comes along for the ride. That's the trade.
Cut. Eat a bit less than you burn, to lose fat while keeping the muscle you built.
Maintain. Eat about what you burn. Your weight holds steady. This is the rest stop between the other two, and it's underrated.
Recomp. Eat around maintenance, train hard, and eat plenty of protein. You build some muscle and lose some fat at the same time, slowly. The scale barely moves, but your body does.

How fast to gain on a bulk

Slower than most people think. Eating way more doesn't build muscle faster. It mostly adds fat.

A 2019 review of research on lifters recommends gaining about 0.25 to 0.5 percent of your body weight per week if you're a beginner or intermediate, which usually means eating about 10 to 20 percent more than maintenance. For a 180 lb lifter, that's about half a pound to a pound a week. More experienced lifters should go slower, because they can't add muscle as fast anymore.

A small 2023 study of trained lifters found the same thing from the other direction: the group that ate much more than maintenance gained noticeably more fat, but not more muscle or strength.

How fast to lose on a cut

The usual target for lifters is about 0.5 to 1 percent of your body weight per week. For a 180 lb lifter, that's about 1 to 2 pounds a week.

Slower is usually better for keeping muscle. In one study of elite athletes, the group that lost weight more slowly (about 0.7 percent a week) ended up with more lean mass and bigger strength gains than the group that lost faster, even though both lost about the same total weight. It took them a few extra weeks. That's a good trade.

How long each phase should last

There's no perfect number, but here's what most people use:

Cut: usually 8 to 16 weeks. Long enough to see real change, short enough to stay sane. If you have a lot to lose, plan it in blocks with breaks in between (more on that below).
Bulk: usually several months, often three to six or more. Slow gains need time to add up to anything.
Maintain: at least a few weeks between a cut and a bulk. After a very hard cut, some research suggests it can take a few months for your body to fully settle back to normal.
Recomp: as long as it keeps working. Check every four weeks.

Whatever you pick, set a check-in every four weeks. Look at your weekly weight average, your lifts, and your progress photos. If things aren't moving in the right direction, change one thing and check again in four weeks.

Diet breaks: pausing a cut on purpose

A diet break means eating at maintenance for a week or two in the middle of a cut. It sounds like cheating. It might be the opposite.

In a well-known 2018 study, men with obesity who alternated two weeks of dieting with two weeks at maintenance lost more fat than men who dieted straight through, and kept more of it off six months later. A 2021 study in trained lifters, with one-week breaks every three weeks, found about the same fat loss either way, but the lifters taking breaks reported less hunger.

So breaks don't seem to slow you down, and they make a long cut easier to stick with. If your cut is longer than about 12 weeks, plan a break or two.

When recomp makes sense

Recomp works best for:

Beginners. New muscle comes fast when you've never trained before.
People coming back after a layoff. Muscle you had before returns quickly.
People carrying more body fat. Your body has plenty of stored energy to work with.

It can work for experienced lifters too, especially with plenty of protein, but it's slow. One recent study of trained lifters found they gained about a kilo of lean mass while losing fat over 10 weeks at or slightly below maintenance. The catch with recomp is that the scale barely moves, so you need photos, lifts, and how your clothes fit to see it.

Putting it on a calendar

Here's a simple example of a year for an intermediate lifter:

Months	Phase	Why
January to April	Lean bulk	Gain slowly while lifts climb
May	Maintain	Settle before the cut
June to August	Cut (12 weeks, one diet break)	Lose the fat gained, keep the muscle
September	Maintain	Rest from dieting
October to December	Recomp or maintain	Holidays are a bad time to start a cut

Two rules make a plan like this work. First, plan around real life. Don't start a cut the week before Thanksgiving, a wedding, or a vacation. Second, don't switch jobs halfway because you had a bad week. The whole point of a phase is that you stick with it long enough to see what it does.

Which phase should you pick?

Brand new or coming back after a break? Recomp, or a slow lean bulk.
Want to lose a noticeable amount of fat? Cut, with breaks if it's long.
Lean already, but want more muscle? Lean bulk.
Life is chaotic right now? Maintain. Keep training, don't diet. It still counts.

Be careful with this if...

Bulking and cutting aren't for everyone. Doctors discourage dieting for teenagers. A large survey of young people found that bulk-and-cut cycles went along with more eating disorder and muscle dysmorphia symptoms. And eating too little for how much you train can hurt your hormones, bones, and performance.

If you have a medical condition, talk to your doctor before changing how you eat. And if tracking food or weight starts taking over your thoughts, stop, and talk to a doctor or a specialist. Maintenance and consistent training are a perfectly good plan.

Where Gym Bully AI fits

Gym Bully AI has phase planning built into its calendar. Mark a bulk, cut, maintain, or recomp phase with start and end dates, and it shows on every day it covers, plus a tag on your Today screen, so you always know which job you're on.

If you use the app's food tracking, your daily targets follow the phase you're in. As a starting point, it adds about 10 percent for a bulk, takes away about 20 percent for a cut and 5 percent for a recomp, and never sets calories below 1,200. Protein is set at 2.0 g per kilogram of body weight during a cut or recomp, and 1.8 g otherwise. Start a cut and your numbers tighten that day. Every number is editable, because it's a starting point, not a prescription.

The weight tracker shows your trend against your goal, and none of it ever reaches the bullies. They care about one thing: whether you trained. A phase only works if you show up for it, and that's the app's real job: on your training days, an AI bully texts you until you go. It's one subscription: $59.99 a year with a free first week, $9.99 a month, or $129.99 once.

Frequently asked questions

How long should a bulk last? Usually several months, often three to six or more. Gain slowly, about 0.25 to 0.5 percent of your body weight a week, and check in every four weeks.

How long should a cut last? Usually 8 to 16 weeks, losing about 0.5 to 1 percent of your body weight a week. For longer cuts, plan a week or two at maintenance every so often.

Should I bulk or cut first? If you're new to lifting, recomp or a slow lean bulk usually makes more sense. If you're carrying more fat than you'd like and you've trained for a while, a cut first is common.

Can you build muscle while losing fat? Yes. That's recomp. It works best for beginners, people returning to training, and people with more body fat, and it's slow.

How much of a calorie surplus do I need to bulk? About 10 to 20 percent above maintenance for beginners and intermediates, less if you're experienced. More than that mostly adds fat.

The takeaway

Pick one job, go slow, give it an end date, and check in every four weeks. Gain about a quarter to half a percent a week on a bulk, lose about half a percent to one percent a week on a cut, and use maintenance as a rest stop. None of it works if you skip the gym, so let the bully handle that part. Get the app.