REGISTERED DIETITIANS

(our nutrition experts)

Emily Gelsomin
MLA, RD, LDN

Co-director of Be Fit

Emily is a senior clinical outpatient dietitian with a Bachelor of Nutritional Science from Penn State and a Master of Liberal Arts in Gastronomy from Boston University. She has worked at MGH since 2005 and helped develop the hospital's Choose Well Eat Well program.  She has written for Harvard Health and regularly posts articles for MGH. She is committed to improving our societal relationship with food. As an avid cook, she believes in the power of both vegetables and warm bread. ​

Christina Mesbah
​MS, RD, LDN

Clinical Dietitian

Christina is a clinical outpatient dietitian with a Bachelor of Science in Nutrition and Dietetics from the University of Delaware and a Master of Science in Nutrition from the Friedman School at Tufts University, where she also completed her Dietetic Internship.  She is passionate about helping people develop healthy relationships with food, along with working with her patients to find realistic sustainable ways to alter dietary habits to support their health goals. 

Erin Child
MS, RD, LDN

Clinical Nutrition Specialist

Erin is a clinical outpatient dietitian with a Bachelor of Arts in Biology from Oberlin College, Dietetic Certificate from Simmons University, and Master of Science in Nutrition Interventions, Communication and Behavior Change from Tufts University. She completed her dietetic internship at MGH and joined the hospital's outpatient nutrition team shortly after. Erin is passionate about finding small, sustainable changes that her patients can make to support their long terms goals. 

Lillian Sonnenberg
DSC, RD, LDN

Be Fit Founder Emeritus 

Lillian was part of the MGH team that developed and implemented Be Fit in 2005 and the Choose Well Eat Well program in 2010. She received a Bachelor of Science in Nutrition from Simmons College, a Master of Science in Clinical Nutrition, a Doctorate of Science in Nutritional Sciences from Boston University, and was also an instructor in medicine at Harvard Medical School.  Lillian is passionate about employee wellness, helping people navigate healthy food choices, and simplifying nutrition messages.

PERSONAL TRAINERS

(our fitness experts)


Cliff Seeto

      Co-director of Be Fit     

Cliff is the General Manager of The Clubs at Charles River Park.  He has a Bachelor of Science in Exercise Science from Springfield College and has over 35 years of experience in the industry working in large multi-purpose health clubs, as well as with a fitness equipment manufacturer.  He has been with CCRP/MGH since 2001 and has helped develop and expand the Be Fit program since its inception in 2005.  He believes keeping active is key to a long, healthy life for your mind as well as your body. 


Joe Dankese

Fitness Director

Joe was encouraged to participate in sports at an early age and came to enjoy how much stronger he felt when he worked out.  He went on to study exercise science in college and is a National Academy of Sports Medicine (NASM) certified personal trainer.  He aims to design workouts to enhance performance and achieve optimum physical fitness while also improving quality of life.


Steve Power

NASM Certified Trainer

Steve had an early interest in both sports and health.  He has been with the Be Fit program since its inception and was a revered trainer at The Clubs at Charles River Park well before that.  He maintains a following of loyal clients and specializes in weight and resistance training for a variety of fitness levels and needs.​

 TJ Chella  ​

NASM Certified Trainer

Becoming a personal trainer was a no-brainer for TJ.  Growing up, he was always involved in sports. He later realized he could take his passion for fitness and make it a career. He works using different training styles to tailor individual responses and gets great pleasure helping to push people to reach their goals and achieve more than they thought possible.

Zachary Rahaman 

NASM Certified Trainer

​​Zach is a lifelong athlete who believes that a properly trained body is capable of displaying strength across any discipline. He uses his multifaceted experience in calisthenics, mixed martial arts, bodybuilding, trail running, and rock climbing to create tailored training programs. He helps clients achieve their goals, which can include correcting muscle imbalance, losing weight, building muscle, or even mastering a skill.

Marc Leone

NASM Certified Trainer

Marc has played organized sports for many years, which led to a love of fitness. He is motivated daily by positive adaptations of strength and resistance training, including increasing mobility under light and heavy loads. He is also certified by the National Academy of Sports Medicine (NASM) as a Virtual Coaching Specialist.

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Jamy Marquez

NASM Certified Trainer

Jamy received a Bachelor of Science in Exercise and Health Science at UMass Boston and then went on to intern at Harvard University where she worked with the Strength and Conditioning department and oversaw over 40 different sports teams.  Jamy started to enjoy fitness when she began to see positive changes in herself, both mentally and physically. She loves to connect and help people achieve their fitness goals - whether it’s becoming stronger, having proper form or balance, losing weight, or just feeling better overall.  Her motto: do not let a pre-existing injury or health issue stop you from training and being the best you can be.