Our Mission Statment

Our mission at The Galveston Diet is to change lives by empowering our students through our inclusive and diverse community that meets them where they are in their health journey while educating them to make informed choices utilizing science-based nutrition. We hope to encourage our students to create sustainable, healthy habits and reframe their mindsets to help increase their longevity.

Meet Our Team

Dr. Mary Claire Haver


Katherine Haver

brand manager

Margaret Walsh

Dir. of coaching & curriculum

Creative director

it director

Odile Polanco

Spanish Translator

Victoria Thomas

operations manager

director of finance

morgan cook



Margaret Walsh

Since turning 40, Margaret has struggled with her weight, hormonal issues, brain fog, and hot flashes. After years of trying different methods to lose weight, including consulting with various doctors, trying the newest fad diets, buying expensive and ineffective weight loss supplements, working with hormone replacement therapy, taking prescription medications, and going through a partial hysterectomy, she found The Galveston Diet and has never looked back.

Margaret created new habits, lost 15 pounds, made exercise a priority, and shifted her mindset from "eat less, move more" to "did I eat enough fat today"! She's thrilled to be a Certified Galveston Diet Coach and to be on this journey with you. Margaret lives in Glen Rock, NJ, with her husband and two boys.

Sarah joseph

When Sara turned 50, she thought “Look at me…I am in the best shape of my life, raised two amazing girls on my own, one in college and one on her way, have a great career that I love, and am in a good place.” Suddenly perimenopausal symptoms hit hard including severe bloating, painful skin, exhaustion and sadness. An ankle sprain from a fall down the stairs and torn rotator cuff derailed her daily workouts, and the pounds came on. Once back at the gym and getting back to running, Sara found that diet and exercise was not working to get her back to where she was. A friend who is an OB/GYN shared one of Dr. Haver’s videos on her Facebook timeline. She thought “this woman is me.” Having studied physiology, biochemistry, and nutrition and writing her honors thesis on the importance of specific fatty acids in formulas for hand-rearing orphaned Harbor Seal pups, she immediately realized that what Dr. Haver was saying made sense. Her bloating improved within days of 16:8 intermittent fasting; she then signed up for The Galveston Diet and has never felt better!

Sara is a veterinarian in private practice for over 27 years. She received a Certificate in Nutrition and Healthy Living from Cornell University. She resides in Canton, MA, and has two daughters. Sara is thrilled to be able to help guide you on your journey to reaching your goals.

Jamie Hadley

Jamie has always been active and strived to eat well but has struggled with an extra 10-20 pounds her whole life. Jamie was diagnosed with Celiac in 2004 and dairy intolerance in 2010. She struggled to find diet programs that would suit her individual nutrition needs. She has been a student of nutrition and wellness for years, and with The Galveston Diet has found a solution that has allowed her to reach her weight loss goals while allowing for the necessary substitutions to meet her dietary needs.

Jamie has learned that health and wellness are not all or nothing but a constant journey of progress, not perfection, with ups and downs along the way. The confidence that she has gained through achieving her weight loss goals with The Galveston Diet has been immeasurable and has given her the push she needed to start her own business and pursue her passion! She is very excited to help answer your questions and support all of you on your journey to your health goals. Jamie lives in Castle Pines, CO, with her husband and two boys.

Dawn Drogosch

Dawn served 26+ years in the military. Maintaining Navy weight standards was challenging amidst crazy schedules, high stress, yo-yo eating patterns, overall life, and aging. Throw in years of IVF and three pregnancies after the age of 40, and to say controlling her weight was a struggle would be an understatement. Through one diet or another, she'd lose and then stall, never getting past her "stuck" point. Then came perimenopause, the weird weight gain, sleepless nights, hot flashes, lack of energy, and the emotional roller coaster.

Revisiting previous diets over a year and having no success, she was uncomfortable, unhealthy, and miserable. When she found The Galveston Diet, she immediately went into a coaching group and began her self-care journey. Now, 50+ pounds later, she feels better than she has felt in years, has blown past her initial goals, is no longer "stuck," and wishes to help others achieve the same success! She attributes her transformation to all the program's information and support and is excited to be part of the process! Dawn currently resides in Pensacola, Florida, with her husband and three kids.

Sarah Kreiger MPH, RDN, CH

Sarah Krieger is a Registered Dietitian Nutritionist and Certified Hypnotist. Sarah has been a part of The Galveston Diet community since its inception in 2017. She carefully creates seasonal meal plans and recipes to fuel the body so that we can grow into our healthiest selves! Sarah is a graduate of Central Michigan University. She received a Bachelor of Science in dietetics and has a Master of Public Health degree from the University of South Florida. She is also certified in food safety. Sarah is based in St. Petersburg, where she is a partner at Healthy Lifestyles Tampa Bay.

Sarah is a Past-President of the Florida Academy of Nutrition and Dietetics. She has also been a Media Spokesperson for the Academy of Nutrition and Dietetics, the largest professional organization for nutrition experts.

Tatiana Vertucci

Athletic her whole life, Tatiana discovered yoga in her 20's and became a certified instructor while working as a graphic designer in New York City. However, she quickly realized that her love and passion for movement outweighed any desire for design and decided to become a full-time certified personal trainer, group fit, and yoga instructor in 2013. Tatiana joins the Galveston Diet community as a health and movement coach, fitness writer, an ACE (American Council of Exercise) certified personal trainer, and a 200 and 300-hour RYT (Registered Yoga Teacher). She has worked with women ranging in age from 30-95 years old, helping women of all ages discover mobility, explore a range of motion, increase strength, and adopt awareness and meditation into their lives. She is also an ADAPT functional health coach and now fuses behavior change, positive psychology, and motivational interviewing with her training style. Her training style has been described as empathic mixed with a healthy dose of tough love to keep her clients moving and motivated.

Group photo of the Galveston Diet marketing and operations team.

Join the Galveston Diet Team!

The Galveston Diet team is growing fast. Contact us to find out about openings and opportunities.

Join Our TGD Team!

Fill out the form to reach out to us about joining the team.

Tell us a bit about you and why you want to work with the Galveston Diet. Be brief, we'll follow up to get more detailed info from you if we have a suitable opening.

This website uses cookies to ensure you receive the best experience.