
Matt Karstetter
Contributing Writer
Know Your Body Type – Ectomorph, Mesomorph, or Endomorph
We all know that in the sport of bodybuilding, to be successful undoubtedly requires a person to push their known limits and leave their comfort zone behind. It takes a “never say die” mindset and overall self-discipline to reach set goals and separate yourself from the crowd. This combined with the correct diet, training protocol and supplementation is more or less the name of the game, right? Yes, but its not usually that cut and dry. There are endless training programs out there guaranteeing results and even more diets telling what you need to eat to be the next Branch Warren. So how do you sift through all the BS and find the program that’s right for you? Start at your base and identify what body type category you fall into.
ECTOMORPH
An ectomorph generally has a naturally slim physique, smaller joints and lean muscle.
Ectomorph Characteristics:
- Smaller frame and bone structure
- Hard gainer
- Flat chest
- Small shoulders
- Thin
- Lean muscle mass
- Finds it hard to gain weight
- Fast metabolism
Ectomorphs find it very hard to gain weight. They have a fast metabolism which burns up calories very quickly. Ectomorph’s need a large amount of calories in order to gain weight. Workouts should be short and intense focusing on big muscle groups. Generally, ectomorphs can lean out rather easy which can be a big advantage when preparing for a competition.
MESOMORPH
A mesomorph has a large bone structure, large muscles and a naturally athletic physique. They find it quite easy to gain and lose weight.
Mesomorph Characteristics:
- Athletic
- Defined muscles
- Gains muscle easily
- Gains fat more easily than ectomorphs
The mesomorph body type responds the best to weight training. Gains are usually seen very quickly, especially for beginners. The downside to mesomorphs is they gain fat more easily than ectomorphs. This means they must watch their calorie intake. Usually a combination of weight training and cardio works best for mesomorphs.
ENDOMORPH
Endomorphs make gains rather easily. They most often have a shorter build with thick arms and legs. Endomorphs find they are naturally strong in leg exercises like the squat
Endomorph Characteristics:
- Gains muscle and fat very easily
- Is generally short and “stocky”
- Finds it hard to lose fat
- Slow metabolism
Diet and cardio are highly important for an Endomorph. A clean diet will serve and Endomorph well.
Use this information as a guide to determine what body type you are and choose the workout and diet protocol that honors your particular physique. Keep in mind that it is possible to fall into more than one category and a lot of guys like myself do. Generally, it will be a combination of ectomorph/mesomorph or mesomorph/endomorph. I myself am a combination of ectomorph/mesomorph. I lean out rather quickly and can handle large amounts of calories, but I have a large muscle bellies and athletic build.
As always keep in mind I am not a physician and the information in this article has been drawn from my own research, self knowledge, and personal theory. I would strongly suggest doing further research before attempting any drastic changes to your body or lifestyle. I do appreciate you taking the time to read this article and I hope it helps. Go Hard!
Bodybuilding Accomplishments:
2007 – State of Kansas – Light Heavy Novice: 1st, Light Heavy Open: 3rd
2009 – Muscle Mayhem: Light Heavy 3rd
2010 – Midwest Iron Man Chicago: Heavy weight: 3rd
2011 – Muscle Mayhem : Heavy Weight: 3rd
2011- WBFF Central USA Championships: Heavy Weight: 1st (Pro Card Winner)


Bio:
Born in the small town McPherson, KS in 1983, Matt is the youngest of 4, with three older sisters. A strong work ethic was instilled in him at an early age and that has been his foundation to work towards achieving his goals and dreams ever since. Growing up, he played nearly every sport possible, but his favorite was baseball.
In 2002, he attended Kansas State University and graduated in 2007 with a degree in business. Since he was old enough to work, he did just that, and during his college years he framed houses and bar tended.
When he graduated, he took the National General Contractor exam, passed and started his own General Contracting and Land Development company in 2007. Initially, he built single family residential homes, but more recently has been getting into commercial and investment properties.
He missed playing ball in college, but he soon realized that it was the weights that he was truly in love with. He began competing in 2007, and now present day, motivation has never been higher. He turned Pro in the WBFF Central USA Championships in May of 2011 and has now set his sights on getting his IFBB Pro Card and has an intense 2012 season ahead of him.

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