Hi, I’m Allison Castator, RD, LD. As a Functional Medicine Registered Dietitian with REV0lution, I help individuals achieve lasting wellness by addressing the root causes of health challenges through personalized nutrition, lifestyle medicine, and compassionate, science-based care. I specialize in women’s health and look forward to supporting clients in reaching their goals big or small through practical, sustainable strategies tailored to their unique needs and lives.

What It’s Like to Work with Me

Expect a relaxed, judgment-free conversation where we’ll review your medical history and any lab work or biometrics you have. We’ll spend time exploring your relationship with food, what’s been working, and where you feel stuck. Together we’ll establish a few short-term goals that feel realistic for your life, so you leave with clear next steps and less overwhelm. You don’t need to have everything figured out, just bring your questions and honesty, and we’ll take it from there.

Specialties

Bariatric surgery, Diabetes or prediabetes, Healthy aging, Heart disease, Heart health

Help gaining/losing weight, Hypothyroidism, Kidney disease, Pre or postnatal nutrition, Prediabetes

Thyroid disorders, Weight loss medications / GLP-1s, Women's health

My Story

Nutrition has always been both a curiosity and a calling for me. After earning my bachelor’s degree from University of Houston, I spent the last 12 years practicing as a Registered Dietitian in clinical hospital settings, outpatient kidney care, and telemedicine. I’m also a mom of three, so you’ll often find me exercising, gardening, or cheering from the sidelines at my kids’ events. My approach is shaped not only by my professional experience, but also by my personal journey managing Hashimoto’s hypothyroidism, along with my background in prenatal and postnatal care. I understand firsthand how overwhelming it can feel to navigate health concerns while trying to balance the demands of everyday life.

My Approach

At REV0lution, I’m proud to be part of a team that is redefining care by focusing on root causes and creating personalized solutions for each individual.

My approach is to provide guidance, motivation, and understanding as you work toward lasting health and wellness. Life will sometimes throw curveballs, and when that happens, we can adjust, reassess, and tailor your goals to fit your current season of life—without losing sight of the bigger picture.