Is it ok for a teenage boy to bulk and cut? (2024)

As a parent, you want your teenager to be fit and healthy. So, going to the gym and lifting weights is generally seen as a good thing. But, if your son has expressed an interest in building muscle, you may have concerns about the bulking and cutting cycle that is regularly promoted by the fitness industry and often associated with muscle building. It’s something we hear about frequently when we speak with teen boys and their parents.

In this blog post, we'll explore what bulking and cutting are, why it isn’t suitable for teenagers, and how to support your son's muscle-building goals in a healthy way.

What are bulking and cutting?

Bulking and cutting are two phases of a muscle-building regimen that involve manipulating calorie intake to increase muscle growth and minimize body fat. During the bulking phase, a person increases their calorie intake and focuses on weightlifting to build muscle mass. The cutting phase involves decreasing calorie intake to reduce body fat and accentuate the muscles that were built during the bulking phase.

Is bulking and cutting appropriate for teenagers?

Bulking and cutting may be common, but it doesn’t mean it is necessary or appropriate, especially for teenagers. Teenagers are still growing and developing, and their bodies have unique nutritional needs. Excessive calorie restriction or overconsumption can be harmful, affecting hormone health, growth, and development. It also may impact mental health, and lead to eating disorders or muscle dysmorphia (the idea that your body is smaller and less muscly than it actually is).

It's important for teenagers to focus on overall health and fitness rather than solely on building muscle.

How can parents support their teenager's muscle-building goals in a healthy way?

If your son is interested in building muscle, there are several ways you can support him in a healthy way:

1. Help him understand how to fuel his goals. If he wants to build muscle, knowing how to fuel in and around training is key.

2. Get the foundations right. Young athletes’ bodies are under construction, to build a solid foundation a balanced and varied diet that includes protein, carbohydrates, colour and healthy fats is essential for muscle building and overall health and wellbeing.

3. Steer clear of muscle-building supplements: Bulk powder, creatine, BCAAs and pre-workout powders are all highly marketed for muscle growth. But, many are unregulated and can be harmful, and they are not suitable for teenagers.

4. Encourage a good sleep routine. Muscles are breaking down and rebuilding to become stronger and bigger. Sleep is an important part of this. 8-10 hours a night is recommended and will do more good than any supplement!

5. Be aware that bulking and cutting cycles and excessive focus on body composition or weight isn’t healthy and is associated with symptoms of eating disorders: Be aware of any changes in your son's eating habits or body image and seek professional help if necessary. BEAT is the UK’s eating disorder charity and has great information and support.

If you help your teenager nail the basics and understand better how to fuel for their goals, then they don’t have to force themselves into a shred phase and it can make it all a bit easier and less stressful on their body. We are here to help you fuel your teenager’s goals.

References:

1. Ganson, K.T., Cunningham, M.L., Pila, E. et al.“Bulking and cutting” among a national sample of Canadian adolescents and young adults. Eat Weight Disord27, 3759–3765 (2022). https://doi.org/10.1007/s40519-022-01470-y

2.  American Academy of Paediatrics. (2016). Body Image and Eating Disorders. Paediatrics, 138(3), e20161649. doi: 10.1542/peds.2016-1649

3. Thomas, D. T., Erdman, K. A., & Burke, L. M. (2016). American College of Sports Medicine Joint Position Statement. Nutrition and Athletic Performance. Medicine & Science in Sports & Exercise, 48(3), 543-568. doi: 10.1249/MSS.0000000000000852

4. Trexler, E. T., Smith-Ryan, A. E., & Norton, L. E. (2014). Metabolic adaptation to weight loss: implications for the athlete. Journal of the International Society of Sports Nutrition, 11(1),

Is it ok for a teenage boy to bulk and cut? (2024)

FAQs

Is it ok for a teenage boy to bulk and cut? ›

Be aware that bulking and cutting cycles and excessive focus on body composition or weight isn't healthy and is associated with symptoms of eating disorders: Be aware of any changes in your son's eating habits or body image and seek professional help if necessary.

Is 15 a good age to start bulking? ›

While weightlifting is fine for a 15-year-old, bodybuilding and powerlifting may not be. These are adult-only competitive sports. A gradual increase in intensity will also help teens avoid injury and get greater long-term results: Warm up and cooldown for 5-10 minutes.

How many years should you bulk before cutting? ›

A good rule of thumb for lifters is at least 8 - 12 weeks for bulking and then you can go into your cut phase if you're happy with the results. How long does it take to cut after bulking? The cutting phase varies per person, often cuts are around 8 - 16 weeks, dependent on your goals and achievements.

Should I cut at 16 body fat? ›

Men with a body fat percentage of about 15-16% should consider cutting. For men that are around 10-13% body fat or less, I would not cut even if it's tempting to be leaner. You don't have much muscle mass to cut down to, and you'll just be really skinny.

What should a 16 year old eat to build muscle? ›

The Best Protein Sources
FoodServing SizeGrams of Protein
Milk1 cup8
Beans½ cup7 to 9
Peanut, almond and soy nut butters2 tablespoons7 to 8
Cheese1 ounce5 to 7
9 more rows
Jul 21, 2020

What age do boys fill out? ›

From 14-17 years most boys will be either 'In puberty' or 'Completing puberty'. After 17 years boys will usually be 'Completing puberty'. If this is not the case, maturation is delayed and further assessment may be needed.

How to get ripped at 15? ›

Do body-weight exercises like push-ups, sit-ups, and squats. Then, add weights to your strength training, starting with light weights and low repetitions. Eat a healthy mix of carbohydrates like fruits and vegetables and unsaturated fats like nuts and avocados. Then, eat lean protein like chicken, turkey, and fish.

Do you lose muscle when cutting? ›

Cutting is nothing more than lowering your fat percentage by adhering to a strict diet plan. This makes your muscle mass more visible. The difference between cutting and a regular diet is that with a regular diet you often lose muscle mass. Cutting is adjusting your diet so that the loss of muscle mass is minimal.

Is it better to start with a cut or bulk? ›

So, if you're looking to put on some muscle and gain strength, start with bulking. Then, cut to lose the extra fat, and repeat. Track and then track some more. Use a fitness tracker to keep tabs on your calorie intake, whether you're on a deficit or surplus.

What does a 15 percent bf look like? ›

For men , it typically results in a defined and muscular appearance , with visible abs and defined muscles in the arms , chest , and legs . For women , 15 percent body fat can also result in a toned and lean physique , with defined muscles in the arms , legs , and stomach .

What bf to stop bulking? ›

Generally speaking the cutoff body fat percent for bulking is about 15-16% for males and around 22-23% for females. This means that if you are above these body fat levels you should cut (lose fat), and if you are under, you should bulk.

What is the ideal body fat for a 16 year old boy? ›

Different authorities have consequently developed different recommendations for ideal body fat percentages. In males, mean percentage body fat ranged from 23% at age 16–19 years to 31% at age 60–79 years. In females, mean percentage body fat ranged from 32% at age 8–11 years to 42% at age 60–79 years.

Can you bulk at 17% BF? ›

Take Home Points: Always bulk if you are close to or below 8% or 17% body fat for men or women, respectively. Always cut if you are close to or above 18% or 28% body fat for men or women, respectively.

Is 16 too late to start bodybuilding? ›

It is not too early and it most certainly not too late. At this age, you are fully grown and fully developed. Bodybuilding is not like other sports, we are talking about many different factors here. There are genetics, there is bone growth and structure, and also stress on your body.

Is it OK to start bodybuilding at 16? ›

Getting started in bodybuilding as a teen is one of the best things you can do to ensure your health and fitness, not just now but in your 20s and beyond. Whether you want to gain muscle, lose weight, improve your sports performance, or just get in shape, working out can take you there. The trick is to do it properly.

Can a 16 year old boy start bodybuilding? ›

Powerlifting, maximal lifts, and bodybuilding are not recommended for young people who are still growing because they can cause serious injuries. Some people looking for big muscles may turn to anabolic steroids or other performance-enhancing drugs.

How much should a 15 year old eat when bulking? ›

Experts recommend consuming 10–20% above your daily weight maintenance calorie needs during the bulking phase for an average weight gain of 0.25–0.5% of your body weight per week ( 1 , 6 , 7 ).

How much protein does a 15 year old need to build muscle? ›

We can optimize building muscle by having moderate portions of protein every few hours at each meal and snack. Have 20-30g protein every 3-4 hours to build muscle. Many teen athletes take a protein powder to build muscle and gain weight. Taking protein powder on its own is not particularly helpful to build muscle mass.

Can you start bulking at 14? ›

Many 14-year-old boys experience growth spurts during puberty and can build muscle through weight training. However, since their skeletal system is still developing, they need to be careful to avoid injury.

How much muscle can a 15 year old gain in a year? ›

This means a 130lb teenager who never has lifted weights might gain 1.3-1.95 pounds of muscle per month (15-23 pounds per year) in a year with a great lifting program and eating plan.

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