Glenn Koslowski

Glenn Koslowski is a well known coach that has worked with many world class athletes and celebrities when they need to peak for a sports event, movie or photo shoot. With over 15 years of experience in nutrition and training, he always brings his clients to their best shapes and highest athletic abilities in the shortest possible time.

7 reasons why you might be struggling to stay lean after a cycle

Coming off a cycle can feel like hitting a brick wall: strength takes a big hit, pumps disappear, and no matter how clean your diet is, fat just starts coming back, especially around the midsection. It’s not just about willpower or training intensity. When you stop taking performance-enhancing drugs (PEDs), your metabolism, hormones, and nutrient […]Read More

Anabolics and appetite: PEDs and hunger, digestion, and bloating

Performance-enhancing drugs (PEDs) are often discussed in terms of muscle growth, strength, and recovery. But one underexplored side effect is how these compounds affect appetite, digestion, and bloating. The relationship between anabolics and the gut isn’t as glamorous as strength gains, but it can make or break progress in both bulking and cutting phases. How […]Read More

Growth Hormone and Insulin: the dual engine for size

Most lifters talk endlessly about training, food, sleep, testosterone and other steroids, but the real metabolic drivers of elite size are two peptide hormones: growth hormone (GH) and insulin. They don’t fight each other; they complement each other. GH sets the conditions for growth, and insulin determines where nutrients actually go. Together, they form the […]Read More

Cardio and gear: conditioning without killing the gains

Some people look at cardio as the enemy of gains, especially when on cycle. The fear? That too much conditioning and energy expenditure from cardio will eat muscle, mess with recovery and ruin your hard-earned progress. But the truth is, cardio done right doesn’t kill gains, it protects them and allows you to work harder, […]Read More

Retatrutide: what is it and is the hype worth it?

Pharmaceuticals once reserved for treating chronic diseases are increasingly finding their way into fitness conversations. With the likes of bodybuilders such as Nick Walker openly talking about using it in his current prep, the latest compound attracting attention is retatrutide, an experimental drug developed for obesity and type 2 diabetes management. While it’s not yet […]Read More

Why orals hit hard and then fade fast

Almost everyone who’s used oral steroids remembers the same thing: that first week. Strength jumps fast; pumps are violent and confidence spikes. Training feels electric. You feel on in a way injectables rarely replicate so quickly. And then, just as suddenly, it starts to slip. The weight is still going up, the drug is still […]Read More

Kidneys: why you should pay attention to them while on PEDs

When lifters talk about health risks of PEDs, the conversation almost always revolves around the liver, heart, or natural hormone production. But there’s one critical organ that quietly takes massive damage in the background: the kidneys. Why the Kidneys Matter So Much for Enhanced Athletes Kidneys are extremely important for the body to function, even […]Read More

SHBG: the hidden governor of your Testosterone

Most lifters judge a cycle by two things: how much testosterone they’re taking and how high their bloodwork comes back. If total test is sky-high, the assumption is simple: the cycle should be crushing. When it doesn’t, confusion sets in. Training feels flat, pumps are not there. Libido is way off. Strength barely moves. People […]Read More

When the pump lies to you

Few sensations in the world of bodybuilding feel as convincing and as joyful as a good pump. Even Arnold Schwarzenegger compared it to having an orgasm:  muscles swell, skin tightens, veins rise, everything looks bigger, fuller, and more “on”. For most lifters, pump becomes a shortcut for instant feedback: if the pump was good, the […]Read More

Serotonin vs. Dopamine: neurochemistry in fitness and performance

When people think of training, they usually think in terms of muscles, joints, and energy systems. But behind the scenes, two key neurotransmitters, serotonin and dopamine, are constantly shaping how you perform, recover, and even how much you enjoy training. Understanding their balance is crucial if you want to optimize both physical output and mental […]Read More