Thetagold fitness
The New Gold Standard in Fitness
Top Personal Training, Nutrition and Accountability Coaching in the Washington DC Metropolitan area. Specializing in improving the overall health of its clients through proper nutrition, exercise and sleep
increase energy
My personal training method increases my clients energy by tapping into the body’s natural sustainable fuel source.
WEIGHT TRAINING
My weight training approach allows for my clients to gradually increase their strength while at the same time building muscle.
weight loss
My proven method not only gets my clients to lose pounds but reduce body fat percentage the healthy way. Online Coaching Available.
about me
hello, I'm Carlos Fenwick
I am a dynamic, energetic and compassionate personal trainer who delivers high quality training sessions to all of my Washington DC personal training clients. I am constantly in communication with my clients and persistent in getting them to their goals. My interest is seeing my clients do well not only in-home personal training but in all aspects of their life. I thrive on people around me flourishing and prospering.

Weight training
Weight loss
Energy
High Intensity Interval Training
Strength Training
ISSA Certified

Start your transformation Today!
Satisfaction That Speaks
"Quite frankly, I am amazed how quickly Carlos was able to get me back into shape and on a healthy journey. I haven’t exercised in YEARS, and I ate whatever was available (fast food)! But In 3 months, I was able to drop 15 pounds, lose 3% body fat, and improve my diet with encouragement and guidance from Carlos. I am now able to work my 12 hour shifts without feeling tired or sluggish. Every session was challenging, yet fun. After each session, I left feeling and looking better than before. I can not recommend a greater personal trainer!"
Oliver K.
Similar to many, I also embarked on a goal of 'finally getting fit' for the new year. Albeit starting a bit late, I met Carlos in the gym in my building (as he does home visits) in early February to inquire about his services. Intrigued by his 'Keto and Intermittent Fasting' training, I decided to go with him as opposed to other trainers who were not similarly trained. We met only days later, and I was immediately impressed. He spoke to me about my eating habits, overall health and previous diet and exercise regimes, and then we did a short mock training so he could assess my fitness levels. The decision to sign up with him was easy, as I felt as though he cared! Within hours of signing up, I received an email with very useful nutrition information and suggestions for supplements. It's been weeks now and working out with Carlos a few times a week has been one of the best decisions I have made this year! He has a wonderful personality, but do not let that fool you. He pushes you. He is knowledgeable and caters workouts to your individual needs. I promise that if you go with Carlos, you cannot go wrong! You will see results, and more importantly, you will enjoy the process.
Lauren M.
"I have been working with Carlos for more than seven years. He has guided me through post-pregnancy weight loss and fitness, training during pregnancy, and in the past few years as I have struggled to find time to train as I balance kids, work, and home life.
Carlos kind but firm approach to motivation is one of the reasons for our long relationship. He recognizes when it is time to push me to work harder and when it is time to rest.
Over the years, Carlos has adapted my workouts to best fit my changing needs. He has also provided invaluable information on nutrition and supplements."
Julie C.
After a sports injury and gaining 27 pounds, I was unmotivated to exercise. Disgusted with my body image, I searched for a trainer and discovered Theta Gold Fitness. I liked Carlos philosophy and demeanor and joined in August 2019.
Carlos listens and adjusts exercises to my level and comfortability. If a routine doesn’t fit, he offers challenging alternatives. His nutritional knowledge offers a well rounded approach to a healthy lifestyle. He checks in routinely after training and is always responsive to my questions and concerns.
Carlos positive energy motivates me to stay focused. He’s always prepared, works hard, level up exercises, and we have fun while achieving results. He’s the consummate professional, punctual, attentive, efficient, and effective. Carlos has helped improved my quality life and is and is a great investment. I highly recommend Theta Gold Fitness if you want to improve your health, body image, nutrition, and lifestyle.
Shawn G.
Carlos changes lives! He is such a positive energy, knowledgeable and encouraging trainer in both fitness and nutrition and overall wants the absolute best for his clients. Waking up multiple times a week at 6:30am has turned into the highlight of the week. Since beginning to train with Carlos, I have noticed a significant different in my strength and endurance levels. From a visible standpoint, I have firmed and toned up considerably. I would never have been able to get where I am today without Carlos. He listens to your goals and tailors the program accordingly. In short, he is THE BEST.
Brittney B.
Carlos Fenwick is one in a million. His personal training both virtually and in person is the best I have ever seen or experienced. His energy is wholly positive and committed but it is coupled with his dedication to his clients and tailoring sessions and goal to his client. This is more rare than it may seem - he does not have his plan and then proceeds - he is constantly assessing and reassessing his clients and making sure they are meeting goals but they are doing so in the best way possible for them individually. He is also, a lot of fun! I would not wait another day to get in touch with Carlos and start your journey today!
Yael L.
I hired Carlos as a personal trainer at a time when I was looking to lose weight and build body strength. Carlos took my goals seriously, developed a strategy unique to my needs and level, and kept track of all the relevant data. In addition to having a systematic approach, Carlos is an absolute delight. Bringing energy and a “Everything is possible” attitude to every work out. He also kept me accountable. After several months of training with him I discovered that my aging body no longer felt old, and my energy levels had brought me a sense of contentment that I wouldn’t have achieved otherwise. Call Carlos. Now.
Carilyn T.
Finally! It all makes sense. After years of confusion and frustration about body weight, I finally feel on solid ground. Carlos has tailored a plan specific to me. He did that through the most useful and unique aspects of this program, high interest, accurate education, and excellent communication. Now I have a specific formula for my body to lose weight. All I need to do is follow it. 8 pounds and counting!
Dr. Dolet
Meeting Carlos Fenwick was one of the best things that happened to me in 2019! I met Carlos in my building gym, and to be honest, the first thing I noticed about Carlos was his great personality. For me, having a personal trainer was not only a matter of guiding me through training but also having a positive attitude towards life. I had no doubt that he was the person that I need to start training with. Carlos offered me a complete program that focused on exercise and nutrition. With regard to nutrition, he recommended for me to start with the Keto diet, and also to begin tracking all of my food during the week. As I adjusted to the Keto diet, he he then introduced intermittent fasting into my program. The benefits have been fantastic!! More energy throughout the day and weight loss. After 3 months I began to notice a real difference in my dietary habits, energy levels and muscular strength.
CF will be there to give you motivation, nutritional tools and dynamic training. Without hesitation I would recommend Carlos Fenwick to anyone looking for a knowledgeable high energy personal trainer.
M. Sequeira
My successful journey to lose weight began this year in March of 2020. That’s when son, Carlos Thomas Fenwick, a Certified Personal Trainer and Keto/Intermittent Fasting Coach suggested I try his program which consists of the Keto Diet, along with intermittent fasting, some exercise and a sufficient amount of sleep each night to start to shed the fat the right way.
Prior to starting the program with my son, I felt miserable most of the time and complained a lot. For the last 10 years, I have been over 200 pounds. I am 61 years old and 5’5” tall and had had enough!! In addition, due to my weight problem, my doctor told me I had developed high blood pressure, high cholestrol and diabetes type 2. Something had to be done about it!!
Carlos told me his program worked because it focused on eliminating sugar from my diet, which was contributing mostly to my excess fat. He explained
that the approach we were going to take was to make the body healthy first - and then we would watch the weight start to come off. The more I listened to Carlos the more it made sense that if I stay disciplined and commited to his program, I would definitely feel and look better. Not only does Carlos educate his clients about fitness and nutrition, my son applies it in his own life.
I must admit in the beginning I struggled because it was hard to kick my old unhealthy eating habits, but I am happy to say that It has been about 16 weeks since I began this weight loss journey and I have lost over 26 pounds and a little over 4% body fat!!! For the past several decades I have been trying to accomplish what I accomplished with my son in 4 months! My target weight is 180 pounds. I have a ways to go but each day I tell myself, I can do this! Thank you Carlos for helping me reach my fitness goals and dreams! I love you
V. Fenwick
"Carlos is a once in a lifetime trainer. He knows how to work with a plethora of people regardless of experience level and also walks you through maintaining a “healthy lifestyle”. He is not just your trainer, but a health coach, a friend, and fierce advocate of living a happier lifestyle. He will truly change how you perceive fitness."
A. Stahl
"The additional things I would say is Carlos' true passion for what he does. i decided that I will continue working with him probably even after I achieve my weightloss goals. "
Geoffery F.
"Carlos is the bomb!!! His energy is out of this world, his work ethic is stern and encouraging. Glad to be on my journey with him!"
Tami Z.
"Carlos has great energy, high motivation and is well vested in his clients and their individual fitness goals. Best trainer ever!"
Talia Z.
"Carlos saved me. If it wasn't for his support and direction for the past 5years I would have continued towards obesity, hypertension, and diabetes. And since I am a family physician I know this to be true. Thank you Carlos!"
Ernest B.
I enjoyed my time working with carlos. he was a great personal trainerthat helped me begin my fitness/health journey. i learned a lot about nutrition by working with him. carlos went above and beyond to make sure that we had constant communication and that i was staying on track with my nutrition. one thing that makes carlos the best trainer is that he's always in a good mood and his laughter is contagious. i couldn't recommend him more to anyone that is looking for a trainer in dc.
Alonda C.
I found Carlos to be reliable, knowledgeable, and focused on helping me to become the best version of myself. I would definitely recommend.
Chauncey D.
Carlos at ThetaGold Fitness gave me the knowledge and self-motivation to start and continue my weight loss journey. I highly recommend his services for over all health and weight loss needs.
L. Francois
It has been a pleasure to work with Carlos. He’s knowledgeable, easy to work with and flexible. During Covid we worked outside and virtually when necessary. We set goals and he kept me motivated. He checks in regularly to see how you’re feeling and really cares about his clients achievements. He helped me get to a weight I did not think was possible and keep it off.
D. Hendry
Carlos is an amazing trainer! After gaining some (a lot) weight during quarantine, I decided it was time to lose the weight and create a new routine that I could make permanent. Finding Carlos made this a reality! I began training 1/4/2021 and by 2/22/2021, I lost 20 pounds! Along with his amazing training sessions, the keto and intermittent fasting nutrition program was easy to follow and provided quick results. He was always quick to respond any time I had a question, and any week that my progress was slower than the week before he would help me pinpoint what I ate that I would discover had a hidden carb or sugar that I never knew! Following his recommendations and tweaking the diet, my fat burning would instantly return. I have tried multiple diets and have constantly felt starved or just disappointed with my food options. However, with the keto program he assigns, I am full and satisfied with more options than I thought I would have, including chocolate options! If you want someone to train you that will give you lasting results and a nutrition plan that is easy to follow and maintain long term, I highly recommend working with Carlos! His training workouts are effective, quick, and targeted, and his nutrition plan is easy and delicious to follow. He is absolutely worth every penny and I have recommended him to numerous people.
S. Brown
Carlos is one of the best trainers and nutritional advisors I have ever dealt with. His work is absolutely amazing! He remains consistent. He understand his clients’ strengths and weaknesses and he motivates you. When I started to look for a physical trainer, it was very important for me to find someone who is motivating and caring. Carlos is that person. I encourage anyone who needs physical training as well as someone who values and can help you to understand the importance of nutrition and diet to use Carlos. His services are reasonable as far as cost is concerned so go for it.
D. Goodman
Carlos supports and guides me toward achieving my nutritional and physical goals. He doesn't guilt trip me, rather he listens and helps me think through what I can adjust. His positive outlook and cheerleader personality make him fun to work with.
Aleisa F.
I only had a month worth of services, but it was a great month.
Not only was Carlos very adept at explaining keto dieting, he was ALWAYS available. Hands-down, ThetaGold Fitness is the right fit for some one trying to lose weight & need guidance.
My favorite moment during my fitness plan was Carlos opening up about his family's weight loss journey. It was very good to hear that he had personal experience with obesity issues. He was not a drill instructor, but a kind mentor who led me on the path towards healthfulness. He has changed my life!
This fitness plan included daily updates, exercise routines, dieting advice, coaching, confidence building activities and much more! In my opinion, this is the best weight loss program on the East Coast!
If you need to lose weight and don't sign up, you will regret it. It will change your life! It changed mine!
Elliot S.
One of the first things I noticed about Carlos was his positive attitude and energy. Even at 6:30 am! His positive energy is infectious and pushes me to do more and be better. He’s very knowledgeable, supportive, checks in regularly, and sets goals to keep me motivated. He doesn’t guilt trip, but will take the time to troubleshoot what may need to change. Working with Carlos has helped me change not only my body, but my relationship with food and exercise. I’m already 23 pounds down and look forward to continuing to work with Carlos toward my ultimate goal!
Nia E.
If you’re looking to get fit and have fun, Carlos is your guy! He is very encouraging and motivating. With his help, I was able to gain muscle mass in just 12 sessions. His nutritional advice and meal outline was very detailed and easy to follow. Because of him, I’m living a much healthier lifestyle. Thank you ThetaGold Fitness!
Kyana R.
I heard about Carlos from a friend and am so glad I started. I cannot say enough nice things about Carlos. He is personable, professional and extremely knowledgeable. He is encouraging, motivating, and very thorough with his explanations and visuals to demonstrate proper technique and form to ensure you are safely and effectively achieving your fitness goals. Carlos challenges you and is right by your side guiding you along the way. If you are considering personal training and prefer a private experience with a highly knowledgeable and “practice what you preach” individual, Carlos is the trainer for you
Bernadine
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Contact us to Learn More about our Personalized In-Home and Online Personal Training Services Serving the Washington DC Area!
tel. (202) 793-8275
Email: cfenwick@thetagoldfitness.com
Serving the Washington DC Area!