Tahtiana Caldwell
RDN, LD
Specialties:
Weight Management & GLP-1 Managment
Women's Health
Sports Nutrition
Gastrointestinal (GI) Disorders
Food Allergies
Diabetes & Prediabetes
Kidney Disease
Liver Disease
Heart Health & High Cholesterol
Oncology Nutrition
Meal Planning
Healthy Lifestyle Counseling
Ages Seen:
18+
Specialties:
Weight Management & GLP-1 Managment
Men's Health
Sports Nutrition
Gastrointestinal (GI) Disorders
Food Allergies
Diabetes & Prediabetes
Kidney Disease
Liver Disease
Heart Health & High Cholesterol
Oncology Nutrition
Meal Planning
Healthy Lifestyle Counseling
Ages Seen:
10+
Specialties:
Weight Management & GLP-1 Managment
Men's Health
Sports Nutrition
Gastrointestinal (GI) Disorders
Food Allergies
Diabetes & Prediabetes
Kidney Disease
Liver Disease
Heart Health & High Cholesterol
Oncology Nutrition
Meal Planning
Healthy Lifestyle Counseling
Ages Seen:
10+
Specialties:
Weight Management & GLP-1 Managment
Disordered Eating
Women's Health
Sports Nutrition
Gastrointestinal (GI) Disorders
Food Allergies
Diabetes & Prediabetes
Liver Disease
Heart Health & High Cholesterol
Meal Planning & Healthy Lifestyle Counseling
Ages Seen
Children (2–4 years)
Teens (13–17 years)
Adults (18+)
Specialties:
Weight Management & GLP-1 Mangement
Pediatric Nutrition (Ages 3+)
Disordered Eating
Women's Health
Sports Nutrition
Gastrointestinal (GI) Disorders
Food Allergies
Diabetes & Prediabetes
Kidney Disease
Liver Disease
Heart Health & High Cholesterol
Oncology Nutrition
Meal Planning
Healthy Lifestyle Counseling
Ages Seen:
3+
Jorja Washington
MS, RD, LD, NASM-CPT
Susan Ivester RDN, LD
Virtual Sessions Only Available
Specialties:
Oncology Nutrition
Diabetes & Prediabetes
Heart Health & Cardiovascular Nutrition
Kidney Disease (Renal Nutrition)
Eating Disorders
Mindful & Intuitive Eating
Gastrointestinal (GI) Disorders
Tube Feeding & Enteral Nutrition
Meal Planning
Healthy Lifestyle Counseling
Ages Seen:
18+
Lauren Brauer
MS, RDN, LD
Currently on a Waitlist
Specialties:
Pediatric Nutrition & Childhood Feeding
Picky Eating & Feeding Challenges
Eating Disorders
Intuitive Eating & Eating Competence
Weight-Neutral Nutrition Counseling
Gastrointestinal (GI) Disorders, including IBS
Heart Health & High Cholesterol
Prediabetes
Family Dynamic Feeding
Ages Seen:
2+
Daniel Smith
MS, RDN, LD
Caty Davis, Owner
Caty Davis is the Owner of Sparkman Nutrition, a leading outpatient nutrition practice serving Austin and Central Texas. She joined Sparkman Nutrition in 2022 as Office Manager and quickly developed a passion for expanding access to high-quality, evidence-based nutrition counseling. In June 2024, Caty acquired the practice from founder Alexa Sparkman and has since focused on growing a team of experienced Registered Dietitian Nutritionists dedicated to improving the health of children, adolescents, and adults.
Caty's passion for nutrition was inspired by caring for her father, who lived with diabetes and other chronic health conditions. Witnessing firsthand how nutrition education can transform both physical and mental health fueled her commitment to making nutrition counseling more accessible for individuals and families throughout Texas.
As practice owner, Caty is passionate about connecting patients with the right dietitian for their unique needs while building strong partnerships with physicians, healthcare systems, employers, and community organizations. Her goal is to ensure patients have access to compassionate, specialized nutrition care that helps them achieve lasting improvements in their health and quality of life.
Sparkman Nutrition proudly provides personalized nutrition counseling for a wide range of medical conditions, including diabetes, gastrointestinal disorders, heart disease, kidney disease, oncology, weight management, pediatric nutrition, eating disorders, women's health, and sports nutrition. The practice offers both in-person appointments in the Austin area and telehealth services throughout Texas.
Healthcare providers and medical practices interested in learning more about Sparkman Nutrition's services are encouraged to contact the office. Caty enjoys meeting with physicians and healthcare teams to discuss referral partnerships, answer questions about nutrition counseling, and schedule complimentary lunch-and-learn presentations tailored to your practice and patients.
Outside of the office, Caty enjoys spending time with her husband, Jeremy, and their daughters, Lennon and Fianna, exploring Central Texas and supporting the local community.
Alexa Sparkman
Not Accepting Clients
Our founder,Alexa holds a bachelor’s degree in nutrition from Texas Tech University and a master’s degree in nutrition from the University of Texas at Austin. A nationally recognized specialist, Alexa worked more than 45 years as a Registered Dietitian Nutritionist. She formed one of the first nutrition counseling practices in Central Texas and developed the Overcoming Mind Hunger program which focused on treating Binge Eating Disorder.
Now Retired, she no longer sees patients and enjoying her travels.
Lindsey is a board-certified Registered Dietitian Nutritionist (RDN, LD) providing personalized nutrition counseling for children, teens, and adults throughout Texas via telehealth, with in-person appointments available in the Austin area. Since becoming a registered dietitian in 2018, she has helped individuals build healthier relationships with food while improving their overall health through realistic, evidence-based nutrition care.
After earning her nutrition degree from Miami University in Ohio and completing her dietetic internship, Lindsey gained experience in clinical nutrition, corporate wellness, and private practice. Her diverse background allows her to support patients with a wide range of medical conditions while creating nutrition plans that fit real life—not restrictive diets.
Lindsey believes healthy eating should feel sustainable, enjoyable, and individualized. Rather than focusing on calorie counting, weighing food, or eliminating favorite foods, she helps patients develop lifelong habits that improve their health, confidence, and relationship with food. Her goal is to provide practical strategies that lead to lasting results without relying on fad diets or constant trips to the scale.
Whether you're looking to manage a chronic medical condition, improve athletic performance, navigate digestive concerns, support women's health, or simply feel your best, Lindsey provides compassionate, judgment-free care tailored to your unique goals and lifestyle.
Outside of work, Lindsey enjoys exploring new cities through their local food culture, cooking meals for family and friends, and spending weekends visiting Austin-area farmers markets.
Jorja is a board-certified Registered Dietitian Nutritionist and Certified Personal Trainer. She earned both her bachelor's and master's degrees in Nutritional Sciences and Dietetics from Texas Tech University before completing her dietetic internship through Aramark. Jorja has experience in clinical nutrition, community nutrition, pediatric nutrition, and nutrition education, helping individuals and families make lasting, realistic changes to improve their health.
Jorja is passionate about making nutrition simple, practical, and sustainable. She believes healthy eating shouldn't feel overwhelming or restrictive and enjoys helping patients build lifelong habits that fit their unique lifestyle, preferences, and health goals. Whether you're looking to improve your relationship with food, manage a medical condition, or optimize athletic performance, Jorja provides personalized, evidence-based nutrition counseling that meets you where you are.
Throughout her education and professional experience, Jorja has worked with patients across a variety of clinical and community settings. She has provided nutrition education, community gardening programs, and hands-on cooking classes for children in underserved communities, helping make healthy eating approachable and accessible. Her background in culinary arts, functional nutrition research, and personal training allows her to combine nutrition science with practical, everyday strategies that patients can confidently implement.
Jorja enjoys working with children (ages 3+), teens, and adults. She provides individualized nutrition counseling for a wide variety of health concerns and is dedicated to helping every patient feel supported, empowered, and confident in their nutrition journey.
When she's not working with patients, you'll likely find Jorja hiking, gardening, cooking, or spending time with family and friends.
Tahtiana is a board-certified Registered Dietitian Nutritionist who earned her Bachelor of Science in Nutrition and completed the Coordinated Program in Dietetics at The University of Texas at Austin. She provides evidence-based nutrition counseling for adults, helping patients develop sustainable nutrition habits that support lifelong health and wellness.
As a passionate foodie, Tahtiana believes that healthy eating should be enjoyable, realistic, and personalized. She is committed to helping each patient achieve their individual health goals through practical nutrition strategies that fit their lifestyle, preferences, and cultural traditions. Whether you're managing a chronic medical condition, improving your relationship with food, or working toward long-term wellness, Tahtiana partners with you to create a plan that is both achievable and sustainable.
Tahtiana enjoys working with patients across a variety of health conditions and believes lasting success comes from small, meaningful changes over time. She is passionate about empowering individuals with the knowledge and confidence to make informed nutrition choices while providing compassionate, patient-centered care every step of the way.
Outside of the office, Tahtiana enjoys serving in a leadership role at her church and spending time in the community building meaningful relationships. She loves exploring new restaurants, experiencing different cultures through food, and finding new ways to connect with others.
Daniel Smith is a Registered Dietitian with a BS and MS in Human Nutrition and Dietetics from Texas State University. He completed his dietetic internship at the Central Texas Veterans Healthcare System gaining experience in both clinical nutrition and foodservice. Through this work, he has gained valuable experience helping individuals navigate complex conditions while making nutrition changes that are realistic, sustainable, and respectful of each person’s unique background and goals. His approach to nutrition care blends clinical expertise with a non-diet and mindful eating approach.
Daniel believes that nutrition should enhance quality of life, not add stress, and he enjoys helping clients build confidence around food while supporting their overall health and long-term well-being. He values balance both personally and professionally and believes that sustainable health is rooted in consistency, flexibility, and compassion. He also believes in always challenging yourself because you never know what you are capable of until you try.
Outside of work, Daniel enjoys spending time with friends, working out, and trying new food spots.
Susan is a Registered Dietitian Nutritionist with decades of experience providing compassionate, evidence-based nutrition counseling in a variety of healthcare settings. She has worked in private practice throughout her career, including with Sparkman Nutrition since 2014, helping adults improve their health through personalized, sustainable nutrition care.
Susan has extensive experience supporting patients with a wide range of medical conditions, including kidney disease, heart disease, gastrointestinal disorders, diabetes, cancer, and eating disorders. She previously specialized in eating disorder treatment at Meridell Achievement Center, where she worked with adolescents in a residential treatment setting. Today, she enjoys helping adults develop realistic nutrition strategies that improve health, support recovery, and fit into everyday life.
Susan believes nutrition should be individualized and practical. She partners with each patient to create achievable goals that promote long-term success rather than quick fixes. Whether you're managing a chronic medical condition, recovering from illness, or looking to improve your overall health, Susan provides compassionate guidance and evidence-based nutrition counseling tailored to your unique needs.
Outside of the office, Susan enjoys staying active by cycling, swimming, hiking, and walking her dog. She also loves cooking and enjoys sharing creative, nutritious recipes with her patients. Volunteering has been an important part of her life for many years, both within healthcare and in the arts, reflecting her passion for serving others and supporting her community.
Lauren is a board-certified Registered Dietitian Nutritionist with more than 15 years of experience providing evidence-based nutrition counseling for children, adolescents, and adults. She specializes in helping individuals and families build a healthy relationship with food through a weight-neutral, non-diet, and client-centered approach that supports lifelong health and well-being.
Lauren has completed advanced training in Ellyn Satter's Childhood Feeding Dynamics and Eating Competence Models and has extensive experience helping families navigate picky eating, childhood feeding challenges, and pediatric nutrition concerns. She is passionate about helping children develop positive eating habits while also supporting adults in healing their relationship with food through Intuitive Eating and Eating Competence principles. Lauren believes nutrition should reduce stress around food—not add to it—and works collaboratively with each patient to develop realistic, sustainable strategies that fit their individual needs.
In addition to her clinical work, Lauren has co-authored a book chapter on pediatric nutrition and an expert consensus article on nutrition therapy for children. She has developed nutrition education curricula, served as an invited speaker for professional medical and nutrition organizations in both Massachusetts and Texas, and has mentored dozens of future dietitians as a preceptor for students at The University of Texas and Texas State University.
When she's not working with patients, Lauren enjoys walking, hiking, dancing, gardening, cooking, and sharing delicious meals with family and friends.
follow us on instagram! @sparkmannutrition
512-257-0898
info@SparkmanNutrition.com
Main Office: 7701 N Lamar Blvd
Suite 402
Austin, Texas 78752
Nutrition
Registered Dietitian Nutritionists in Austin, TX
Sparkman Nutrition provides in-person nutrition counseling in Austin, Texas, helping individuals and families work with licensed registered dietitians. We offer evidence-based care for diabetes management, cancer nutrition, digestive health, and family nutrition.