About Us

We’re like you..

We too want to find the finest supplements for ourselves and our families. We don’t want to spend hours reading reviews, watching videos and getting MBAs in nutrition just to figure out what type of Nootropic will best help us study.  That’s why we created Muscle and Brawn – To provide valuable advice at no cost to you.

M+Bs Founder

Steve Shaw is the original founder of Muscle and Brawn, an experienced powerlifter with over 31 years experience pumping iron. During competition he’s recorded a 602.5lb squat, 672.5lb deadlift and a 382.5lb bench press. His mission with Muscle and Brawn was to share tips that have worked for him over the years – helping readers to build more muscle and get stronger. In the last few years Steve has stepped down from Muscle and Brawn, in 2020 Nchip.org purchased muscleandbrawn.com to combine and awesome fitness site with an even greater editorial reach.

The Writing Team

Assist. Prof. Dr. Dimitar Marinov, MD, PhD

About Us

He graduated from the Medical University of Varna, Bulgaria with flying colors and jumped towards pursuing his PhD right away! One of the lessons he learned in med school was that “prevention is better than cure”. This is why he turned his focus on work and research in the field of nutrition. He’s also a specialist in Nutrition and Dietetics, which in Bulgaria is a medical speciality. As a dietitian, he helps people make the proper lifestyle changes and successfully manage or even avoid some of the most common and deadly chronic diseases. Nowadays, he is also teaching at the same university where he graduated. His students are going to be future doctors whom he educates about preventive medicine and healthy diets. Email: Dimitar@muscleandbrawn.com Connect with Dimitar on LinkedIn and social media or see all of Dimitar’s work for us Here

Kathryn Giuffrida, MPH

About Us

Kathryn is a native of the sunshine state and currently resides with her husband and 2 cats in central Florida.

She obtained a MPH in Toxicology & Risk Assessment from USF in 2018 and also received national certification in public health from the National Board of Public Health Examiners.

Kathryn is a year-round swimmer and qualified to compete in the 2020 TYR Pro Series. She has also competed in bodybuilding within the women’s figure division.

You can read her work for Muscle and Brawn here.

Ernst Peibst

About UsErnst Peibst has spent over 3,000 hours researching anabolic steroids and PED’s. He’s also dedicated the last 7 years educating people about their effects, with hundreds of thousands of people reading his articles. He’s studied countless science papers, read several expert books and has consulted some of the finest doctors in the world – on the topic of steroids.      

About UsSteve Theunissen

I’ve had a passion for health and fitness ever since I was a kid. When I was ten, I was stricken with a bad case of glandular fever. I was stuck in bed for months. My house was right next to my school and every morning I’d see, my schoolmates go running past during their physical education sessions. On one occasion, my doctor was visiting to give me a check-up when the kids ran past. He commented, “If you tried to run like them, you’d probably die!”

That comment fuelled me to build up my strength, fitness – and confidence. I started working out in my bedroom then, at 15, joined the first gym in my hometown of Rotorua, New Zealand. I came to love fitness and soon managed to combine it with my other great love, writing, to produce a series of audio fitness courses that I sold through the local TV Guide. Within three years, I was managing my own gym. In 1987, I became the first personal fitness trainer in New Zealand, with the opening of Ultimate Bodies One-on-One fitness studio.

In the late 1990’s, I became passionate about doing something to help combat the growing problem of childhood obesity. This led me to complete a teaching degree. For the next dozen years, I combined my love of literacy with my passion for fitness to educate middle school students. I started up the country’s first Bootcamp for Kids, along with providing courses in healthy nutrition and developing the fitness mindset.

I hold the following certifications from the International Sorts Sciences Association:

  • Certified Personal Trainer
  • Fitness Nutrition Certification
  • Specialist in Group Fitness & Guided Study
  • Strength & Conditioning Certification
  • Sports Nutrition Certification
  • Transformation Specialist & Guided Study

For the past five years, I have been a full-time fitness writer.  I also love to write about history and have written more than thirty books on the great battles throughout history. I live in sunny Tauranga, New Zealand with my wife of 33 years, Shelley.

Dr. Thomas O’Connor MD

About UsAfter many years of caring for thousands of men on testosterone and anabolic steroids Dr. Thomas O’Connor created Testosteronology, a sub-specialty of Internal Medicine. No other medical specialty offers comprehensive and personalized medical services for men on androgens; Testosteronology is distinct from Endocrinology and Urology. Testosteronology is more specific than Endocrinology, which deals with all hormones in men and women. And it is different from Urology, a surgical specialty that does not focus on the common medical aspects of how androgens effect men. These aspects include cardiovascular complications, adverse effects on red blood cell production (polycythemia), psychological side affects of androgens, and other internal medicine related conditions. Testosteronology offers men from all over the world a safe place where they are respected, listened to, and protected by the most cutting edge, progressive men’s heath physicians on earth.


  • American Board of Internal Medicine Certification – Since 2005
  • Clinical Instructor/Teaching Physician-Department of Medicine-University of Connecticut School of Medicine
  • Physician Preceptor Clinical Longitudinal Immersion in the Community (CLIC)
  • Residency Training – University of Connecticut School of Medicine – 2005
  • Professional Medical Studies – New York Medical College – 2002
  • Pre Medical – Post Baccalaureate – Syracuse University


  • Graduate degree in Exercise Physiology – Master’s Degree – Long Island University
  • Author of “Anabolic Doc” column in Muscular Development magazine  2009-2020 and co-host of “Ask the Anabolic Doc” podcast series
  • Contributor to Bill Llewellyn’s Anabolics 11th Edition
  • Author – “America on Steroids – A Time to Heal”, 2017
  • YouTube channel “Anabolic Doc” for anabolic steroid education
  • Featured anabolic steroid expert: Muscle and Fitness, New York Times, New York Daily News
  • Featured expert in Generation Iron’s films: “GI part 3” and “Enhanced 2 the Max”