Real People
Real Expertise
Real Impact

Meet our Experts

Each member of our team brings a unique set of skills, experience, and dedication to help you reach your health and performance goals. Together, we offer a comprehensive and integral approach to nutrition care that will go beyond nutrition itself. We go that extra mile!

Jesus Majano

Co-Founder and
Administrator

More about Jesus...

Originally from Venezuela, he is an electrical engineer who is in charge of administration and marketing at MVNUTRITION. Started in the running world, now long-distance triathlete.

Maria Vallasciani

Founder and Senior Registered Dietitian

More about María...

Originally from Argentina, she is a Registered Dietitian and Nurse, a Lactation Consultant, and a Level 2 ISAK Anthropometrist. She has more than 14 years of experience in the field and holds a post graduate degree from the International Olympic Committee in Sports Nutrition as well as multiple advanced certifications in both clinical and sports nutrition areas. She is a former pro and NCAA Division I tennis player, now long-distance triathlete.

Ana Ananguren

Junior Registered
Dietitian

More about Ana...

Originally from Venezuela, Tina is our Junior Registered Dietitian and ISAK Level 1 anthropometrist. She is a former Gymnast and Crossfitter athlete who continues to be involved in strength training.

Pau Romaguera

Operations
Manager

More about Pau...

Originally from Spain she is our second brain and right hand. She is in charge of anything that relates to logistics and operation management. She is very strong cyclist and long-distance triathlete.

Jesus Majano

Co-Founder and Administrator

More about Jesus...

Originally from Venezuela, he is an electrical engineer who is in charge of administration and marketing at MVNUTRITION. Started in the running world, now long-distance triathlete.

Maria Vallasciani

Founder and Senior Registered Dietitian

More about María...

Ana Ananguren

Junior Registered Dietitian

More about Ana...

Originally from Venezuela, Tina is our Junior Registered Dietitian and ISAK Level 1 anthropometrist. She is a former Gymnast and Crossfitter athlete who continues to be involved in strength training.

Pau Romaguera

Operations Manager

More about Pau...

Originally from Spain she is our second brain and right hand. She is in charge of anything that relates to logistics and operation management. She is very strong cyclist and long-distance triathlete.

Their Words, Our Motivation

"Working with Majo transformed my habits and mindset. I went from barely moving and avoiding the kitchen to meal prepping and training for triathlons. She taught me that progress isn’t linear, and that carbs are fuel, not the enemy. Her guidance has helped me grow not only as an athlete, but as a person. With her support, I now believe consistency can take me anywhere."

"Since starting with MV Nutrition, I’ve learned how to fuel my soccer career the right way. Their guidance has helped me stay energized, balanced, and consistent in training and matches. Their support has made a real difference in how I feel and perform on and off the field."

"Majo was a key part of my channel swimming journey. Her expertise helped me fuel and recover for cold-water endurance and long-distance swims. She created a plan tailored to my training, events, and health. More than a nutritionist, she’s been a steady, motivating presence throughout my prep. I couldn’t have done it without her."

"Majo changed how I fuel, perform, and recover. I had the science, but she helped me put it into practice with a plan made just for me. She adapted everything—from bloodwork to lifestyle and injuries. I went from a 5:35 to a 4:48 half Ironman, and from 11:59 to 9:39 in a full. She understands female athletes deeply. She’s truly next-level."

"Maria and her team changed our lives. She listens, truly cares, and builds plans that work if you commit to them. Her experience and heart make her stand out. MV Nutrition has given us the support and encouragement we didn’t find anywhere else. We feel seen, guided, and empowered every step of the way."

"Before Majo, I was just surviving. Now, I thrive. She taught me to fuel with confidence, let go of carb fear, and push past limits I thought were normal. With her guidance, I hit new PRs and finished Unbound 200 stronger than ever—fueling 95g carbs/hr for 12 hours! I feel powerful, focused, and better than ever. Majo changed everything."

Real People
Real Expertise
Real Impact