What metabolism do you have? Here's how to find out – gym edition

Apr 7, 2025

By Nutrition Monsters

Welk metabolisme heb jij? Zo ontdek je het – gym editie

Have you ever wondered why your training partner can eat whatever they want and stay rock solid, while you gain weight just by looking at a carbohydrate? Or why one person effortlessly builds muscle mass, while another trains hard for every gram of muscle tissue? The answer lies deeply rooted in your genetics: your physiological somatotype, or your metabolism type. Within the gym walls, we distinguish three basic types. Identifying your type is the absolute key to efficiently tailoring your training and nutrition.

24-time Olympia-winning coach Hany Rambod always emphasizes that elite athletes not only train hard but especially train and eat according to their specific physiology. There is no one-size-fits-all blueprint. What metabolism do you have? Discover the three gym somatotypes here:

1. The Ectomorph (The 'Hardgainer')

The ectomorph is naturally slim, has long limbs, and possesses a lightning-fast metabolism. Carbohydrates are burned immediately instead of stored. The big problem? Building muscle is an enormous struggle. Ectomorphs need a constant calorie surplus and must focus on heavy, compound basic exercises with sufficient rest.

2. The Mesomorph (The 'Genetically Blessed')

The mesomorph has the ultimate physiological blueprint for bodybuilding. Naturally athletic build, broad shoulders, and a narrow waist. The metabolism is perfectly balanced: they build muscle mass very quickly and burn fat relatively easily. This type responds extremely well to the classic FST-7 protocol.

3. The Endomorph (The 'Powerhouse')

The endomorph is naturally heavier built, has wide hips, and gains strength and muscle mass extremely easily. The downside: the metabolism is slower, causing the body to store fat very quickly. Endomorphs need to be sharp about their carbohydrate intake and often require higher training intensity or strategic cardio.

Pro tip from the Pro Creator: Whatever metabolism you have, you can physiologically manipulate and support your genetics with the high-end supplements from Evogen Nutrition to reach your goals:

Support for the Ectomorph (Muscle Building): Because your recovery capacity is heavily taxed by your fast metabolism, Evogen IsoJect is indispensable. This ultra-pure whey isolate delivers amino acids to your muscle cells lightning-fast thanks to IGNITOR™ enzyme technology to immediately stop muscle breakdown.
Support for the Endomorph (Fat Loss & Energy): Need to watch your calories but still want to perform? Take Evogen EVP Xtreme 3D beforehand for brute strength and focus, or choose the liquid, stimulant-free Evogen EVP AQ for an extreme 3D pump without extra calories or sugars.
The Intra-Workout Base for Everyone: Drink Evogen Amino KEM during your training to continuously supply your muscles with all 9 essential amino acids (EAAs) and high-quality electrolytes to optimize hydration and muscle preservation.

Related reading

The importance of nutrition for muscle building: What should you eat?
How to lose weight the best way: Fat loss without muscle loss
The ultimate guide to strong and muscular legs

Discover our collections Ready to perfectly tailor your training and nutrition to your metabolism type?

Discover the targeted collections at nutritionmonsters.com:

Muscle Building (the home base for the ectomorph and mesomorph)
Fat Loss (essential for the strategic cut of the endomorph)
Proteins (like Evogen IsoJect for maximum recovery)
Pre-workout
Intra-workout
Health & Wellness

FAQ

How can I definitively determine which type of metabolism I have?

Critically examine how your body has historically responded to nutrition and training. If you struggle to gain weight (both fat and muscle), you are predominantly an ectomorph. If you easily build muscle but constantly have to fight against increasing body fat, you tend to be an endomorph. If you fall right in between, you have the mesomorph blueprint. Often, people are a combination of two types.

Which pre-workout does Hany Rambod recommend for a mesomorph?

A mesomorph responds physiologically very quickly to training stimuli. To push muscle growth to the absolute maximum, Hany Rambod recommends the ultimate pump synergy. Combine a scoop of Evogen EVP Xtreme 3D for mental drive and focus with a dose of liquid Evogen EVP AQ for an extreme, physiological 3D muscle pump and cell hydration.

Does an endomorph need to cut out all carbohydrates to lose weight effectively?

No, that is not necessary and physiologically unwise. Carbohydrates are the primary fuel for intensive strength training. However, an endomorph needs to handle carbohydrates more strategically. Choose complex sources (such as oatmeal and sweet potato) and focus intake mainly around training (pre- and post-workout), when the muscles can absorb sugars most efficiently as glycogen.

Why is an EAA supplement like Amino KEM so important for an ectomorph?

Ectomorphs have a hyperactive metabolism that burns a lot of calories and amino acids even at rest. During intense training, this type is at an increased risk of muscle breakdown (catabolism). By drinking Evogen Amino KEM during the workout, the muscles are immediately protected with all 9 essential amino acids, keeping the body in an anabolic (growth-promoting) state.

Can my somatotype (metabolism) change over time?

Your genetic foundation (bone structure and predisposition) remains largely the same, but your active metabolism and physiological body composition can be drastically changed through long-term strength training, muscle building, and nutrition. A 'hardgainer' ectomorph can transform into a muscular and athletic physique through years of intense training and consistent eating.

What metabolism do you have? Here's how to find out – gym edition

1. The Ectomorph (The 'Hardgainer')

2. The Mesomorph (The 'Genetically Blessed')

3. The Endomorph (The 'Powerhouse')

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