Bulking: What It Means, How to Start, and How Is It Different From Cutting?

  • Medical Reviewer: Dany Paul Baby, MD
Medically Reviewed on 9/1/2022

What is bulking?

Bulking is a particular body-shaping technique where you focus on building muscles and minimizing fat gain. Bulking involves body-shaping exercises and increase caloric intake and cutting is different because it involves different exercises.
Bulking is a particular body-shaping technique where you focus on building muscles and minimizing fat gain. Bulking involves body-shaping exercises and increase caloric intake and cutting is different because it involves different exercises.

Bulking is a particular body-shaping technique where you focus on building muscles and minimizing fat gain. People use a variety of methods to achieve this result. Keep in mind that some bulking techniques are healthier than others, though, and all health recommendations depend on your body’s unique needs.   

Bulking involves dietary changes combined with a particular workout routine. In broad terms, you should increase your caloric intake and begin an intense resistance training routine at the same time. Bulking is typically done in short bursts, like periods of 10 to 12 weeks. 

The main goal of bulking is to build muscle. Muscle is a major source of lean body weight. This is a healthy type of weight that’s unrelated to fat. People usually need to steadily work for months or years to build muscle mass. Short periods of bulking, on the other hand, are a way to see quick gains within the long-term trajectory of your muscle-building goals. 

Do not try bulking as a full-time activity. This technique is something that should be used on and off as one phase of your muscle and strength-training plan. It can be preceded by a period of maintenance and followed by a technique called cutting. Cutting aims to maintain muscle and eliminate fat. 

The exact way that you incorporate bulking into your life depends on why you’re using this technique. For example, if you’re using it as part of an athletic training program, then you’ll want to vary your dieting and exercise strategy based on your season. 

What's the difference between bulking and cutting? 

Bulking and cutting are two separate body-shaping techniques. They’re both common in the bodybuilding community. Both of the techniques focus on the difference between body weight that comes from muscle and weight that comes from fat. 

The biggest danger of bulking is that it can also lead to fat build-up. The technique involves caloric increases that either need to be used immediately or converted to muscle — otherwise, the calories become fat. Most bulking techniques will involve some amount of fat gain along with muscular increases. 

This is why many people who bulk follow this period with a cutting phase. The cutting phase is meant to increase the definition of your muscles by eliminating the surrounding fat. You’ll want to adjust your caloric intake when you switch from bulking to cutting. You may also want to modify exactly where those calories are coming from. For example, some people cut out carbohydrates during their cutting phase.

The cutting period should also be much shorter than the bulking phase. If your bulking phase lasts around 10 weeks, then your cutting phase should be about one week.

Who is bulking best for? 

Bulking is commonly done by bodybuilders. This is because bodybuilding focuses more on the size and appearance of muscles than any other sport. As long as you do it in a healthy way, though, bulking could work for anyone who wants to increase the size and strength of their muscles.

What should your diet look like when you are bulking? 

You’ll need to increase the number of calories that you eat each day when you’re bulking. In order to build your muscles, you need to make sure that your body has both enough energy and all of the necessary building blocks.  

What you eat is just as important as the number of calories. There isn’t one specific recommendation for the proportion of carbohydrates to proteins to fats that's best for bulking muscle mass, but general recommendations include a 40 to 30 to 30 ratio of proteins to carbohydrates to fats. 

Regardless of your exact ratio, you’ll want to make sure that you get a large amount of protein. Just make sure that you don’t sacrifice too many carbohydrates in your diet. These are a major source of energy. You can’t build muscle without them. 

To bulk in a healthy and effective way, your calories can’t come from unhealthy foods. You need to make sure that you’re not just eating lots of junk foods like: 

  • Sugary treats
  • Fried foods 
  • Other sources of saturated fats

Eating too many of these bad foods can lead to problems like heart disease.

You should also prioritize complex carbohydrates over simple ones. Complex carbs include foods like oatmeal and brown rice. Simple carbs include white bread and many types of baked goods. 

When you’re bulking, make sure that you’re eating steadily so your body always has energy to work with. Eat three to six meals a day and make sure that you consume a mix of carbohydrates and protein both before and immediately after a workout. One expert recommends a glass of chocolate milk as the perfect post-workout snack. 

SLIDESHOW

Foods That Aren't as Healthy as You Think See Slideshow

What should your exercise routine look like when you are bulking? 

The best exercise routine for your bulking phase will ultimately depend on your personal goals. You should focus the most on the muscle groups where you want to see the greatest gains. The best exercises are full-body workouts or routines that target all parts of your body over the course of a week. 

In general, you’ll want to begin an intense resistance training routine that’s designed for your body. 

Resistance training involves using some kind of weight to increase the pressure on your muscles while you perform a particular movement. Sources of resistance that you can incorporate into your routine include: 

  • Free weights
  • The weight of your own body
  • Weight machines
  • Resistance bands

You also need to make sure that you strike a balance between working out and resting. You need to work out enough to turn most of the extra calories into muscle, but you also need to give your body enough time to rest so you can actually build the new muscle tissue. 

How is bulking different for beginners compared to experts? 

Beginners are usually able to gain muscle mass faster than people who have been working on bodybuilding for a long time. This means that you should set larger goals and pack on more calories early on in your muscle-building journey. 

For example, it’s reasonable for a beginner to aim for an increase of 0.25 percent to 0.5 percent of their body weight per week during periods of bulking. This involves massive caloric increases. People who already have substantial muscle mass should expect smaller gains and increase their caloric intake less. 

When should you talk to a doctor or nutritionist? 

Always talk to your doctor before beginning a new workout routine. A nutritionist is also a very helpful resource for information on the most balanced diet for your body and your goals. 

Studies show that many bodybuilders don’t rely on expert advice when they’re creating their workout routine. This can be very dangerous for your health, though. An expert can help you figure out the safest way to build muscle fast. 

You should also talk to your doctor before taking any supplements that are meant to help you build muscle. Supplements may not be approved by the U.S. Food and Drug Administration and can cause dangerous side effects. 

Medically Reviewed on 9/1/2022
References
SOURCES:

Better Health Channel: "Weight and muscle gain."

BMJ: "Association of fried food consumption with all cause, cardiovascular, and cancer mortality: prospective cohort study."

Journal of Strength and Conditioning Research: "Dietary Strategies of Modern Bodybuilders During Different Phases of the Competitive Cycle."

Sports (Basel): "Nutrition Recommendations for Bodybuilders in the Off-Season: A Narrative Review."

Texas Children's Hospital: "Gaining Weight – Building Muscle."

Vital Record: News from Texas A&M Health: "A beginner's guide to 'bulking up'."