THE EXPERTS

BEHIND YOUR

NUTRITION

Two credentialed sports dietitians, Tatiana Velez and Rocío Rivera, standing and smiling while looking at a book together with Fuel Labs logo icon in the background in green over a white square.

Fuel Labs was founded by credentialed sports dietitians that want bring pro-level nutrition to athletes, teams, and organizations across Puerto Rico, Florida and Latin America. Every program is built around who you are, what you do, and what you need to perform at your best. Science-backed, personalized, and delivered fully in English and Spanish.

READ MORE ↓

TATIANA VÉLEZ-BURGOS
MS, RD, CSSD, LND

FUEL LABS FOUNDER & LEAD SPORTS DIETITIAN

Fuel Labs logo icon in green.
A female sports nutritionist and dietitian, Tatiana Velez, with long dark brown hair, smiling, wearing a black collared shirt.

ABOUT

Tatiana is a sports dietitian specializing in combat sports, youth athletes, and disordered eating. Her goal is to help athletes reach their potential through personalized nutrition strategies. As a bilingual dietitian who grew up in Puerto Rico, where nutrition knowledge was not widely available, she bridges cultural gaps to make that guidance effective and relevant to every person she helps.

EXPERIENCE

With over eight years of experience in sports and performance nutrition, Tatiana is also a Certified Specialist in Sports Dietetics (CSSD). She currently works with Puerto Rico's national combat sports teams, including Taekwondo and Judo, and has extensive experience with weight-class sports like professional boxing, MMA, and brazilian jiu-jitsu. She also serves as the Latin America sports dietitian for the Tampa Bay Rays' Minor League Baseball organization.

EDUCATION

Tatiana holds a B.S. in Chemistry from the University of Puerto Rico Mayagüez, an M.S. in Chemistry from The Ohio State University, and an M.S. in Human Nutrition from Drexel University, where she completed her clinical dietetic internship at the VA Hospital in San Juan, Puerto Rico. She received her sports nutrition training at Drexel's Nutrition and Performance Center, working alongside NCAA Division 1, MLS, and NHL teams.

Rocío A. Rivera-ORTEGA
MS, RD, LND, ISAK-1

SENIOR SPORTS DIETITIAN

Fuel Labs logo icon in green.
A female sports nutritionist and dietitian, Rocío Rivera, with long dark brown hair, smiling, wearing a black collared shirt.

ABOUT

Rocío is a sports dietitian from Puerto Rico, specializing in endurance sports, aquatic sports, team sports, female athletes, and disordered eating. Her passion for sports nutrition began through her own experience as a former athlete, where she saw firsthand the lack of accessible, sport nutrition education and expert support for athletes, which led her to help others bridge that gap. She is passionate about helping athletes perform at their best by building a positive, sustainable relationship with food and exercise.

EXPERIENCE

With over four years of clinical and performance nutrition experience, Rocío works extensively with runners, cyclists, and triathletes, including athletes from Puerto Rico's national teams. Her professional experience also includes MLB professionals, youth, female, and dance athletes, as well as organizations such as the JJ Barea Foundation in Puerto Rico.

EDUCATION

Rocío holds a B.S. in Nutrition and Dietetics from the University of Puerto Rico and an M.S. in Nutrition in Physical Activity and Sport from UCAM University of Murcia, Spain, where she completed her sports nutrition training with UCAM's youth swimming team. She is also certified in Advanced Sports Nutrition from Barça Innovation Hub.

AS SEEN IN:

Buzzer Beater logo with a digital scoreboard display at the top and the text 'BUZZER BEATER' in bold letters, with 'BB' underneath.
Colegio de Nutricionistas y Dietistas de Puerto Rico logo in teal, stylized with a circular design element in the 'C'.
FIERCE by Mitu logo in large pink letters, separated by a thin pink line on the left.
El Nuevo Dia logo with an abstract red and blue shape above the text.
MSP Medicina Salud Pública logo with 'MSP' letters on the left, a red banner on top saying 'SOMOS CIENCIA' and name with url on the right.
Telemundo Deportes logo with a large red 'T' and the words 'Telemundo Deportes' underneath.

  • “Thanks to Tatiana and Rocio, I learned how to choose and value the importance of the right foods for my body. Not only that, but they helped open my eyes to the fact that eating ‘well’ and exercising are not only about losing weight, but about improving every aspect of your health. What you consume has a major impact on your mood, sleep quality, blood pressure, workout recovery, energy, how your skin looks, and more. They helped me understand my body, recognize what it needs, and heal my relationship with food and exercise. Thanks to them, I learned so much. It’s a journey with many highs and lows, but it’s a journey worth taking.”

    — Claudia P.

  • “The experience with Rocío was excellent. From the initial guidance, food recommendations, and supplement adjustments. My weight has stayed at 130 lbs, even while my training ranged from 50–60 miles weekly. Definitely on my own, I wouldn’t have done so well at the Ponce Marathon, where I ran 44k instead of 42k. I arrived smiling, happy, without pain, or cramps. I never stopped. I hope to use their services again in the future, with new goals. THANK YOU.”

    — Marilyn López

  • “Working with Rocio and Tatiana has been one of the best decisions I’ve ever made. They’ve helped me unlock the level of performance I need in my sport by focusing on eating the right amounts at the right times, both in daily life and during competitions. I’ve seen major improvements in my performance at high-level competitions as well as during training sessions, which I know will continue bringing results. I’m very happy with the way we’ve approached everything and with the support I’ve felt throughout the process.”

    — Luis Julián Molina

  • “I started with Tatiana looking for a nutrition alternative to support my bodybuilding training. Her professionalism and dedication completely changed my mindset into something more balanced and comprehensive, since I used to be very selective with my meals. Now I feel more energized and confident making my own balanced decisions. Although there will always be gaps and natural life circumstances, I’ve seen growth in my maturity and in my physical and mental transformation. Every one of her teachings will stay with me in decisions as important as nutrition. Thank you, Tatiana Vélez, for so much!”

    — María G.

LET’S WORK TOGETHER

Whether you're an athlete ready to fuel smarter, a sports team looking to build a nutrition program, or an organization investing in your people, our team of credentialed sports dietitians is here and ready to help. Reach out and let's start building something great together.

GET IN TOUCH
Multiple hands raised up towards a golden trophy held high by one hand.
A stylized brain icon in blue.

FUEL YOUR MIND

Our blog is where our credentialed sports dietitians break down everything from performance fueling to organizational wellness in a way that's practical, science-backed, and actually useful.

HEAD TO THE BLOG
A stylized trophy cup icon in green.

MAKING HEADLINES

We're proud to be recognized across the industry for the work we do in sports nutrition and performance. Check out our press page for coverage, features, and our full media kit.

SEE OUR FEATURES