Ken's Fitness & Nutrition Studio: Personal Trainer & Boot Camp Classes Jacksonville

Fantastic experience: Hiring Ken as my personal trainer has been life changing. His facility is welcoming to all body types and is clean everytime I walk into the building. I first started with Ken after my father passed away in 2021 and he truly helped me on my journey to keep my mind busy on healthy habits as well as building muscle along the way for nearly 2 years. I recently started taking sessions again this year (2025). Ken listens to my fitness goals and creates a one-of-a-kind workout every session. He encourages me to do the excercies correctly and pays attention to what my body can handle while also pushing me out of my comfort zone. Thank you Ken for providing a service that goes above and beyond a regular neighborhood gym. Your help and attention to detail keeps me motivated because I struggle to work out on my own. I can see and feel my body changing after just a few sessions back in your gym. One session at a time!

Fantastic experience: Great workouts. Let Ken know your goals and he’ll get you there. Started in September and I’m stronger and have lost 10 pounds. Ken is a wonderful trainer as he knows the direction to have you obtain optimal results. Let’s Go!

Fantastic experience: When I started working with Ken, I was 185 pounds. In a year's time, my weight got down to 166. All I had to do was train and follow a good nutrition plan. If you stay consistent and keep a healthy diet, you will see excellent results. If your goal is to lose fat and gain muscle, Ken is definitely the right choice.

Fantastic experience: Today my son completed his 2nd attempt at the CPAT physical agility for firefighting. The first time he went through it he wasn’t able to complete it, but after 45 days of training at Ken’s Fitness & Nutrition Studio Ken had my son capable and in position to accomplish his goal. Kens a personal trainer that will do what it takes to get you where you need to be to accomplish your goal and also hold you accountable so that you stay the course to obtain your goal! Thanks Ken

Negative experience: I did not get my last 3 sessions I paid for and he never mentioned a 30 time period. Make sure you read the entire contract.

Fantastic experience: On my weight lost journey training with Ken has been beneficial he kept me focused on the my goal .

Fantastic experience: Ken put me through a vigorous workout every time I walked in. I used the buy 9 and get 3 free summer special. It was an excellent value.

Fantastic experience: Ken is the best trainer in town. His knowledge about fitness is good.

Fantastic experience: Ken has been training me, past 2 years, very dedicated to all his clients. I am very satisfied with 15# weight lost. Excellent teaching given by him on maintaining a healthy lifestyle. Thank you for one to one training, I highly recommended ken to train and assist you to meet all of your fitness goals as well as living a healthy life style by following his nutritional plan. ‍♂️‍♂️⭐⭐⭐⭐⭐

Fantastic experience: Ken has helped me lose 61ibs so far! He’s great at what he does! He holds me accountable especially the time I really don’t want to come in! He’ll say “you’ve only worked out one time this week!” Guess what I schedule for the next day lol! Hes also very flexible and understand of my busy job working with pregnant women!

Fantastic experience: I am a 2 time customer. And each time i lost 13 pounds. Got me to do things i didn't think i could do. Really committed to overall heath.

Fantastic experience: Ken is an amazing trainer! I started training with him 3 months ago and I’m already down 26lbs. My goal is 60lbs and I’m well on my way. Along with training, he teaches you about the importance of changing your eating habits as well as making healthy living a lifestyle. Ken’s personal training is extremely affordable and his business hours are really flexible. I highly recommend if you’re ready to get the body you desire.

Fantastic experience: Start this journey in February. After two months of training with Ken. I have lost two sizes. Thanks Ken

Fantastic experience: Great trainer! I went in looking to get fit and pass my military fitness test and Ken helped me do just that. I started going to his gym a couple weeks before taking my test and ended up failing the first time around. The second time around that I took it, literally weeks later, I was able to pass thanks to Ken. He focused on the material I needed to improve on and really pushed me to do better. If you’re looking to get pushed and see how far you can go and get results, I 100% recommend this Ken as you’re trainer.

Fantastic experience: I have been training with Ken for about 8 months now and still continue. I have lost 32 pounds working out with him. He has motivated me and made sure I have been eating right. He is amazing

Positive experience: I had a great 30 min workout for free with Ken , I can do without the attitude especially since I’m not use to a trainer but I’m pretty sure he will get you where you need to be because I was feeling sick after the workout lol

Fantastic experience: Started with Ken with the goal of toning up and shedding a few pounds, I can say we have met and exceeded those goals. Started out at 214 lbs and now I'm at 193 lbs. Thanks to Ken for pushing me to achieve incredible results. Ken kept me interested and motivated and I love the improvement in my body. He put together a training program to help achieve great results. Didn't really know what I was doing in the gym, but under Ken's guidance I have succeeded more than I ever could hope. Working out has become much more fun now that I actually know what I'm doing. Ken ensures you get the most out of your time, and has a flexible schedule so you are able to come in when it's most convenient for you. Thanks for challenging me and pushing me a bit further every time. If you're looking for a personal trainer, highly recommend you give Ken a call.

Fantastic experience: I have thoroughly enjoyed working out at Ken's Fitness. I was running a mile in 15 minutes, he's help me decreased that to under 11!! I feel more energetic, healthier, and better overall. Adding his training to my routine has been one of the best decisions!!

Fantastic experience: Amazing trainer!!!! Very dedicated about training and helping others reach their weight goal. I Lost 30 pounds ! Come to Ken if you really want to lose weight.

Fantastic experience: Working out with ken is great experience if you trying to get your body ready for the military. He pushes you to your limit. He also motivates your body, mind, and spirit. He make me feel I can accomplish anything in life.

Fantastic experience: Ken 's Fitness & Nutrition has helped me learn how to live a healthy lifestyle. I started training about 6 months ago. I have lost 25lbs and still training. It is a lifestyle change!

Fantastic experience: Ken is an amazing trainer. I have been working him for 2 months and have lost 22lbs. I came in not being able to run and little by little he got me running 1 mile in 22 minutes. He has your interest in mind and will push you to get stronger and fit! He helped me focus on what i can do for myself and not what i can't! Thanks Ken for your coaching!

Fantastic experience: Ken is a great trainer! He's patient, yet will push you beyond what you think are your limits. If you're ready to set your fitness goals and need help achieving them, Ken is your guy.

Fantastic experience: Very knowledgeable of the human body and what is needed to achieve your desired results. More than fair prices and very open availability.

Fantastic experience: Love this place! Ken is great with my mom and me creating workouts we can do together but also cater to our individual needs. After just a few weeks we’ve both seen amazing results in our bodies through muscle building and enhanced endurance. So grateful to have found a local and experienced trainer like Ken

Fantastic experience: I take my daughter who’s an athlete to Ken for strength and conditioning. He makes personalized workouts just for your individual needs. Ken has definitely helped my daughter get in better shape, which has contributed to her becoming a better athlete.

Fantastic experience: I've been going to Ken for about a month. I started when I saw the positive results my wife was getting, and she had started only a month earlier. After years of putting things off or coming up w/excuses, I've found someone who took the time to motivate and encourage me to keep going and to keep getting better. Ken's services are top notch, and his prices more than reasonable, with no long-term contracts. You won't be disappointed if you're serious about making a lifestyle change. From one former professional couch potato to another, give Ken a try!

Fantastic experience: Ken is hands down the best personal trainer in Jax. Been going to Ken's Fitness for 2 months now. And currently still going 3 days a week. I'm now  down 19 pounds now and still going strong. My goal is to lose 100 pounds with Ken. So if your serious about losing weight and being a healthier person.  Come on down to Ken's. **Prices are Cheap and Affordable**

Fantastic experience: Ken is very knowledgeable and helpful. Too of the line trainer!

Fantastic experience: Good Afternoon To Everyone My Uncle Is Very Motivational And Inspiring From A Scary Almost Life Taking Car Accident To A Business Man That’s A Fitness Trainer And He Keeps Me Motivated No Matter What Watching Him Recover From A Fatal Car Accident And This Shows Me That Anything Is Possible My Father Is Deceased And My Uncle Have Been There And Helping Me Through It And I Thank God For Him I’m 16 And Making My Way

Fantastic experience: BEST GYM!

Fantastic experience: Good atmosphere

Fantastic experience: I have been training with Ken since May 3 and my results are astounding, the prices are unbeatable especially for the quality that he provides, with one on one service and attention Helping you to reach your goals! I can’t express how much this is change my life for the positive I can never repay Ken for the help he’s brought to me! I could never recommend him enough!

Fantastic experience: Started training with Ken in February 2019, after going back and forth with myself about living a better healthier life. This was the best decision, Ken is a great trainer very motivating. I've lost 12lbs and still currently training with him! I encouraged anyone looking for a personal trainer to contact Ken..

Negative experience: I’m not sure about the other experiences but I can only speak about mines. Ken is nice and polite on the phone but his customer service and attitude is less than desirable. He did not give me the one free lesson advertised on his website. He has an attitude and he uninspirational and acts like he is doing you a favor. He spent the majority of his training on his phone texting and seemingly uninterested. Needless to say I won’t be returning . I found someone else it is a little more expensive but if you want quality then sometimes you have to sacrifice.

Fantastic experience: Ken helped me on my journey to become a firefighter. I trained with him before I took the Physical Agility Test and passed. I’m now a firefighter with the city.

Fantastic experience: I often refer to the time in my life when I was under 200 pounds as my GOLDEN DAYS. After dealing with depression and other health issues the weight came on rapidly. Before I knew it, I didn’t even recognize myself in the mirror. Low and behold, I met Ken Jenkins. Ken’s Extreme Fitness Training has been a benefit/reward to my life. Ken has to taught me to work out and eat better. I still have a ways to go before I hit my goal but I’m confident that Ken will help me! So far I have lost 40 pounds in 6 months!! Ken is dedicated to the cause and has a true passion/gift for fitness education. He is geared towards goal reaching and ultimate health success. Need a trainer choose Ken he is leading folks back to their GOLDEN DAYS!!!! -Lanasha

Fantastic experience: Going to Ken's Fitness and Nutrition has been a life changing experience. I was in a really bad car accident in 2013. I had a broken leg, my knee was shattered, and I was told I might not walk again. I had three surgeries and went to physical therapy for 2 months. I went from being in a wheel chair, to crutches, to learning how to walk again. When I walked it was with a limp; after many years I accepted the fact that I would always walk with a limp. In May 2018, I decided to give Ken's Fitness and Nutrition a try to lose weight. Not only have I lost over 20 pounds but in less than two months I was walking without a limp. My family saw my progress and the great work Ken had done and many of them decided to train with him also. My children, my mom, my sisters and even cousins train with him. If you are looking for results and a lifestyle change, Ken's Fitness and Nutrition is definitely the place. Best trainer ever. His prices are the best in Jacksonville and he is passionate about what he does.

Fantastic experience: I’ve been a client of Ken a little over two years and my experience have been a blast. Working out with Ken helps me to continue a healthy life style and a better me . (Sixty and counting )

Fantastic experience: My experience with Ken has been great, challenging but great. He pushes you but also encourages you. He has definitely helped me progress with my weight loss goals...

Fantastic experience: Ken had been my trainer now for 3 months and although I'm not always a consistent trainee he is always consistent. He is positive about my able to work harder even when I don't believe it. He is motivation to show up to a training session and give it everything I got. I use to be that person who yo-yo diet; I would go to the gym off and on then quit. Well, 3 months ago all that changed and let me end this by saying that, ''I'm glad Ken is on my team. I have 50 more pounds to go and I hope to see you all there.

Fantastic experience: Ken puts the "personal" in personal trainer. I've been going to Ken's Fitness & Nutrition Center for about 30 days now and I've gained 6 pounds in muscle. I do 45 minute sessions twice a week and Ken always switches up the work out and pushes me into reaching new heights. He has a great knowledge base and always recommends how to continue to stay in shape and eat right even when I'm outside of the studio. I highly recommend to those who are looking for a dedicated instructor at a great price! Thank you for everything Ken!

Fantastic experience: Helped me trained for the Army and got me in good shape to take on the challenge!

Positive experience: I have been working out with Ken for 1month and have lost 13 pounds. Ken is tough but a great motivator.

Fantastic experience: Awesome Trainor, great prices, amazing results. One on one personal sessions that focus on your needs. Highly recommended!!!

Fantastic experience: Ken is an awesome trainer and motivator. You learn not only how to work out, but how to eat as well. His prices are very reasonable.

Fantastic experience: I've been working out with Ken for about 4 months and I see progress already! Ken's workouts are very intense, but worth it! He keeps you motivated throughout the whole workout! I recommend him for an excellent personal trainer! Check Ken out!!

Fantastic experience: Ken is not only my personal trainer. He is my motivator in getting me into healthy shape. I have lost 30lbs in 4 months so far. I know i wouldn't be at this point right now if i went to the gym on my own. Each time that i go, i am working on different areas of the body. He's prices a great and fits into my budget.

Fantastic experience: Ken helped me lose 66 pounds with the majority of it being within the first 5 months! Almost 5 years later, the weight is still off and he is constantly checkng on me and keeping me motivated. Not to mention, his prices are affordable and the BEST prices in Jacksonville!!!

Fantastic experience: I'm so happy to be a client at Ken's Fitness. He took the time to understand my needs and formulated a work out plan to help me meet my goals. I'm so excited to see how he continues to push me to the next level on my fitness journey.