Client testimonials
“I have had several trainers in Houston and Santa Fe. Jeff is clearly in a class by himself.”
Katherine E. Cullen, Rancher 



“Jeff is an excellent personal trainer who is very knowledgeable of his profession. Since we have been working with Jeff our strength and energy levels have increased beyond our expectations. We highly recommend him.”
Christopher & Tamara Montoya, Owners, CJ’s Landscaping 



“I was fortunate to be one of Jeff’s first clients in Santa Fe. I trained with him for seven months, and I believe that hiring him as my personal trainer has been one of the smartest investments I have ever made. His talents to motivate and teach are just two of the many wonderful qualities Jeff possesses. I have never felt better nor looked better in my life, and I owe it all to Jeff.”
Raquel Tompson, Human Resources Manager, Outside Magazine 



“Jeff Nailen’s skill in tailoring a realistic exercise program for me – a 61-year old woman who had not exercised seriously for years – combined with his up-to-date knowledge of nutrition and dietary issues assured me that I could achieve my fitness goals. Two immediate results have been increased energy and sounder sleep, and I credit Jeff’s enthusiastic support and persistent, yet patient, encouragement with helping me stick to my program.”
Elizabeth O’Neil, Author 



“Jeff Nailen’s BioFit program has produced outstanding results in my effort to redesign my physique. In just twelve weeks I gained ten pounds of lean muscle and increased my overall strength by 28%. All of this was accomplished in just three short but intense workouts per week. Key to my success was Jeff’s in-depth knowledge of exercise techniques and nutrition. This gave him the tools to design a workout routine tailored to my muscle fiber type and personal goals.”
Miles Smith, Health Physicist & Nuclear Waste Consultant 



“I have had other trainers in the past, but was surprised at how rapidly I got results when I started training with Jeff. I saw more results with him, that other people also noticed, within just the first few weeks of training. No one helps me achieve my goals like he does – I actually see a noticeable improvement in my body, strength, and flexibility literally from session to session. Jeff is an extremely knowledgeable and highly effective trainer and coach; after training with him, I could never go back to anyone else.”
Raymond Ortega, Photographer 



“The BioFit program is outstanding. I noticed improvement in my strength within weeks of starting, and reached my goals within months. Jeff Nailen designed a program for me which helped me achieve significant improvement in strength with less pain and agony than I anticipated. Jeff is highly professional and intelligent. He teaches the physiology of strength-building and nutrition, making the training sessions very interesting. 
I highly recommend the BioFit program for anyone looking to get into shape.”
Kimberly Stertzer 



“I’ve spent 20 years training as hard as I could for rock climbing, martial arts, and general fitness. I thought 
I was pretty much at the limits of my abilities and performance given my physiological build and age. By teaching me how to work smarter instead of longer and harder, Jeff allowed me to make significant gains in a very short time. For example, although I’ve been training for 20 years, I doubled my strength in several exercises in just three months while actually spending less time in the gym than before, and I now plan to use these principles to push my performance even further.”
Jeff Inman, Software Developer, National Center for Genome Resources 



“I am 86 years of age and just glad I’ve survived without any major health impairment. My husband has had Alzheimer's for the last 6-7 years; adjusting to living alone and still being responsible for his care has been very stressful.

“I have been training with Jeff for five years now and I can testify that: my stress has been reduced, I have markedly reduced the fat percentage of my overall weight—my body fat has gone down from 46% to 26%, I have lost 10% of my weight, I have tripled my strength, my doctor is pleased with my improved health status, and the training sessions three times a week are a pleasure.

“Thanks Jeff.”
Lillian Baumbach, Retired Teacher 



“Jeff Nailen’s BioFit program has improved my personal well-being. Before I met Jeff I weighed 310 pounds. Presently I weigh 235 pounds. I have lost 75 pounds on Jeff’s program.

“The BioFit program is comprehensive. His program is not a gimmick. The program is tailored for each individual. Jeff has spent years in the fields of fitness and diet.

“Jeff’s individualized approach takes into account your medical history, your current fitness, and your own goals before coming to a fitness strategy tailored for you. Jeff’s plan will give you a no-nonsense approach 
to reaching your goals and he provides you the resources to achieve your goals.

“I highly recommend Jeff’s program to anyone who wants to improve their physical fitness.”
William Johnson, Manager, Office Depot 



“Jeff has provided personal training to my elderly parents for over three years. Jeff is a patient, kind, and highly skilled personal trainer. Jeff cares about his clients and goes above and beyond the call of duty on their behalf. Jeff motivated a highly unmotivated client, my Father, to exercise. My Father had not exercised prior to Jeff’s intervention. Dad was 84 at the time. Jeff also worked with my Mother, who lives with Alzheimer’s and Parkinson’s diseases. 

“I am absolutely convinced that my Father has lived as long as he has because of Jeff’s personal training and motivational skills. When he started he could not stand up without assistance and couldn’t open jars. Now he is much more self-sufficient. 

“I am equally convinced that my Mother has maintained her walking ability due to Jeff’s consistency in providing his services and the care he shows for my Mother. Anyone who hires Jeff is hiring the best there is 
in personal training. He is a consummate professional and takes pride in his work, and it shows in the results he gets from his clients.”
Barbara Michael, Attorney-at-Law 



“Anyone with an ounce of sense should look askance at promises of physical and psychological transformation. And no one was more suspicious than ourselves. However, against our better judgement, 
we fell in with Jeff Nailen’s BioFit program and have been more than amply rewarded for our recklessness.

“The fitness program that he offers is deeply researched and attentively delivered. Everything he promised has been achieved not only in terms of sustained weight loss (55 pounds) and muscular development but also in attitude improvement and self-discipline. This is attributable to two factors; the intellectual persuasiveness of his program and the cheerfully encouraging rigor with which he applies it to each client’s particular needs and physical type. 

“Investing time, energy, and money into this venture has produced astonishing returns for us so that we can wholeheartedly recommend the BioFit program to anyone…who has an ounce of sense!”
Joan Baumbach MD, MPH, MS, Public Health Physician, New Mexico Department of Health &
George Marsden MA, Data Librarian Contractor, New Mexico Department of Health 



“When I met Jeff Nailen I was seeking a healthy, sustainable way to obtain and maintain fitness. I had explored many weight loss options in the Santa Fe area and found that many of them were merely short-term solutions. Jeff impressed me with his knowledge of the fitness and weight loss literature, in addition to his enthusiasm. His thorough brochure was an excellent indicator of the well-rounded nature of his program as a whole.

“Jeff is a determined, goal oriented, and optimistic person. Each of these qualities makes him a superb personal trainer. His determination is integral to attaining one’s goals. When the going gets tough and motivation wanes, Jeff’s determination alone keeps his clients going. He patiently guides one to meet and exceed one’s goals, especially in terms of strength. When Jeff sets a goal he has every intention of obtaining it and will go to great lengths to carry through with it. 

“By simply reminding his clients of the importance of setting reasonable and yet challenging goals he imparts a lesson that is useful in all of life. He then supports his clients in reaching each of the goals they set at the commencement of the program. Finally, Jeff’s optimism continually amazes me. He chooses to believe in only the best case scenario and this choice propels himself and his clients to unimagined positive achievements. These three characteristics ensure Jeff’s success as a trainer and therefore the success of his clients.

“In terms of weight loss, while helping me to greatly improve my muscle tone in order to burn more calories, and generally to feel more graceful, he gave me a wonderful book in addition to my personalized program. This book is a source that I may never have found or that may have taken me years to find. It does an uncannily effective job at breaking down the causes of weight problems. It not only helps one become comfortable with eating, but also improves one’s outlook on life. That is a lot to say of one book, but it has proved true for me and for others to whom I have recommended it.

“Jeff is a successful, ambitious person and therefore he attracts successful, ambitious clients. I was continually inspired by the incredible tales of motivation and achievements of his clients – and I respected the anonymity he maintained in relation to other clients’ identities. 

“It has been said that we should choose our friends carefully for they are a reflection upon us. Considering Jeff’s mental, philosophical, career, and physical accomplishments, I feel confident that choosing Jeff as a trainer and friend is thus a wise and ultimately positive decision. He will certainly help anyone with high standards reach heights that are higher than they can imagine.”
Janine Johnston, Graduate Student 



“Personal Trainers and Fitness Consultants are the same thing, right? Wrong! This is only one of many things I have learned during the last eight weeks.

“My experience with personal trainers had been the typical stereotype – a person who uses the same exercise routine for everyone, provides some basic nutritional information, and spends most of the training session looking around the gym instead of focusing on my workout.

“As a true Fitness Consultant, Jeff goes way beyond this kind of simplicity. He emphasizes the total picture, including an in-depth assessment, formulation of realistic goals, extensive and customized nutritional advice, and most important to me, enthusiastic support. Jeff’s knowledge of the human body, its functioning, and its biochemistry is truly amazing. For instance, how many trainers have discussed with you the difference between slow-twitch and fast-twitch muscle fibers, or the importance of the hormones insulin and glucagon to losing weight?

“I am in the midst of a national ‘physique transformation’ contest sponsored by Experimental & Applied Sciences (EAS), a leading nutritional supplement company. Mid-way through the training program that Jeff put me on for this contest, a friend of mine actually accused me of having resorted to liposuction because my progress was so rapid! 

“Because of this, we decided to do an interim assessment of my progress to date. After just the first eight weeks of my training, I have lost 23 pounds of body fat while at the same time gaining 13 pounds of muscle, and I’ve decreased my pants size from a tight 44 to a loose 38! Without ‘dieting’ or starving myself!

“Was it easy? No. There were no magic pills that worked while I was sleeping, or drinking shakes three times a day. Instead, it required that I really listen to Jeff and follow his advice, that I make a commitment to regular training no matter how bad a day I might have had or no matter how pushed I was for time, to follow the detailed but generous nutritional plan provided in my program, and taking the appropriate nutritional supplements that Jeff recommended at the right times. After only eight weeks and half way into my program, the results I’ve gotten are proof that the BioFit program works!

“If you are not impressed with the numbers I cited above, ask Jeff to show you my before and after photos 
so you can see with your own eyes the difference that just 8 weeks of nutrition and training can make when it’s done right.”
Anthony Shearin, General Manager, Camel Rock Suites















                                    Anthony before                                                                      Anthony 8 weeks later




"Jeff Nailen is passionate about what he does. He is committed to giving his clients the benefit of his comprehensive knowledge of diet and fitness.

"I have been a client of Jeff's twice. The first time was when I was newly diagnosed with type II diabetes. Jeff's enthusiasm and encouragement was contagious. I worked hard and lost 50 pounds and was in the best shape ever. Unfortunately, I stopped and slid down that slippery slope and gained most of the weight back and lost a lot of my strength. I landed in the hospital emergency room with very high blood sugar and elevated blood pressure. Heeding that wake-up call I am now back on track with Jeff and intend to stay there.

"Since resuming Jeff's program my blood sugar is steadily getting better, I've lost 5 inches off my waist, an inch off my arms and legs, 12 pounds of weight, I'm regaining my strength and stamina, regaining my energy levels and confidence, buying smaller clothes, and other people are noticing as well.

"Jeff knows how to motivate without being abrasive. His knowledge of how the body acts and reacts to exercise and the food we put into our bodies is extensive. He knows what works and what doesn't for each individual by obtaining an all encompassing health history at the beginning.

"The most important lesson I have realized from working with Jeff is that this must be a top priority in my life if I want to have a healthy life."
Karen A. Glazier, RN



“I had tried all of the other approaches in the past, including Weight Watchers, Jenny Craig, etc. without success. My experiences with these programs were very negative and ultimately contributed to further weight gains. Not only were they too basic and not right for me, but when they were not successful, and I started asking the people running these programs why they were not working, they immediately got defensive and made me feel that it was my fault, that if I were only following their program correctly it would be successful, which triggered feelings of failure, guilt, and hopelessness, followed by comfort eating binges and further weight gain. I got the distinct feeling that they were only interested in making money and did not really care about helping me.

“In June 2000 I began working with Jeff in the hope that the downward spiral in my health could be stopped. In developing my goals I sought to reverse my recent massive weight gain, build my strength, and eliminate chronic illnesses due to the excess weight. As someone who has earned a Masters’ degree, I can say that Jeff Nailen’s work is at the doctoral level and is of doctoral quality. 

“Jeff’s approach is also very positive and supportive rather than punitive; when things aren’t going right and I get off track, he doesn’t make it worse by blaming me, but works with me in a supportive way to figure out what is best for me and he gets me back on track quickly. Jeff’s program is the only program I’ve tried that actually works.

“The result is that my weight is steadily dropping. I have lost 25 pounds while gaining muscle and strength; my stamina is the greatest I have ever experienced; my doctor has halved my hypertension medication; and most remarkably, my adult-onset diabetes is now totally cured* and I am off my Metformin medication. These results have taken place in a positive, supportive environment that Jeff has helped me create for myself which I believe will keep me on track and lead to long-term success. 

“An unforeseen benefit of my partnership with Jeff is the reversal of how I view myself. Jeff was very confident that he could help me reach my goals and had faith in my ability to succeed, and this inspired my self-confidence and belief in myself that I could succeed. I now see myself as a happy and healthy woman who has hope that I will accomplish my goals with time.

“Who would have thought that the secret to happiness is good health?”
Linda Haukaas, Artist

* Jeff’s note: Degenerative diseases, such as type II non-insulin dependent diabetes mellitus (NIDDM), commonly known as adult-onset or Type II diabetes (90% of diabetics are Type II diabetics), are not only preventable, but also reversible to a large degree. 80% of type II diabetics are overweight because glucose intolerance/insulin resistance both causes, and is caused by, overweightness/obesity in a bi-directional downward degenerative spiral.

Type II diabetes is associated with aging, but is actually caused by several factors including a sedentary lifestyle, a high glycemic-index diet, chromium deficiency, being overweight, and there is also a recently discovered relationship between stress and the corresponding high cortisol levels caused by stress, and obesity, insulin resistance, as well as hypertension (these related degenerative conditions form a cluster commonly referred to as ‘Syndrome X’ or ‘Metabolic Syndrome’). The antidote to this is an upward regenerative spiral of renewal by means of a healthy lifestyle of fitness as Linda's experience exemplifies and inspires. 




“It is with great enthusiasm that I write of my experience with Jeff Nailen and the BioFit program he designed and implemented for me. I retired to Santa Fe at age 59 last September. One of my main goals was to lose weight, get my body in better shape, and become healthier in general. I had been discouraged for years because I had tried practically every program out there to help me accomplish this and had failed. 

“Those programs included Physician's Weight Loss Centers, Jenny Craig, Weight Watchers, OptiFast, Pritikin, Diet Center, and numerous others, including a local doctor known for his success with weight loss. In each case I would be put on a rather strict diet and would initially lose some weight only to gain it back. I was convinced that it was an insurmountable problem and that nothing would work for me.

“Despite having had negative experiences with two personal trainers prior to my retirement, I interviewed a number of personal trainers in Santa Fe. I was not impressed with any of them until I talked to Jeff and he told me about his unique, comprehensive fitness program. I had no idea that Santa Fe had such a wonderful resource! I had always been frustrated by the confusing and often conflicting nutritional and exercise recommendations offered by trainers, nutritionists, and doctors. All my life I have been looking for a program that brings everything together into one package. That is exactly what Jeff’s BioFit program does. It includes diet, supplements, exercise, and much more, including advice on how to effect your hormones naturally and even time management for sticking to your program.

“In brief, Jeff’s program WORKS!! Since I started his program in December 1999 I have lost over 55 pounds 
of fat and gained significantly in muscle. I've accomplished this by following Jeff's exercise plan tailored specifically to my needs, including personal training with Jeff three times a week, and eating good, nutritious, healthy meals without calorie-restriction, based on the highly individualized nutritional program he devised to meet my body's particular needs.

“The concepts I've learned from Jeff have made an enormous difference in my life. My friends are constantly amazed at the phenomenally positive physical as well as psychological changes that have occurred in me. 
I feel and look better than I have in 35 years. The low self-esteem and occasional depression I had are gone and my outlook on life is brighter and beautiful once again. Jeff's BioFit program truly has reversed the clock  in my case and I feel and look younger than I ever thought possible.

“Jeff's comprehensive research into all aspects of health, fitness, nutrition, and related areas is unparalleled in my experience. His knowledge and understanding of how the human body works is so far superior to anything else out there that I consider any of the other programs or trainers a waste of time.

“He doesn't promise anyone a rose garden. It requires hard work and persistence but he is there for his clients every step of the way and his program is 100% effective if followed as he sets it out. I couldn't be more pleased or gratified with his work and the tremendous help it continues to be to me. Jeff is absolutely wonderful to work with. For example, his keen observation and creative approach resulted in his devising specific exercises that are reversing years of muscular atrophy I was experiencing due to a former accident that my physical therapists were unable to treat and eventually gave up on.

“An unexpected benefit of my personal training with Jeff has been a remarkable improvement in the quality of my voice. As a singer and voice coach, I had always been taught the importance of exercise for a strong voice and performance, but had frankly never taken it seriously. Though now retired, I am singing better than ever before, and recently auditioned successfully with the Santa Fe Opera, an opera known for hiring young singers. I would not have even auditioned for this role, much less obtained it, without the confidence gained by losing weight coupled with my vastly improved voice.

“The work I'm doing with Jeff is absolutely the best investment I've ever made in my life. I'm constantly repaid every day in ways I never imagined. I can state unequivocally that I am happier now than I’ve ever been before. I recommend Jeff Nailen and his program without reservation to any person who wants a better life.”
Dr. Frederick Schuyler Fox,
Retired Professor and Dean of Humanities and Fine Arts,
and Soloist with the Santa Fe Opera


BioFit’s weight loss & fitness solutions
To learn more about BioFit’s unique holistic approach in contrast to partial dietary and exercise approaches, see my detailed comparison here: Compare or go to a summary of my integrated and customized Solutions.




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In the photo at the top of the page, Jean, my first trainee, hits a winning pose in a fitness contest!

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