Registered Dietitian Nutritionist
Personalized Nutrition with Candice Erstad, MS, RDN
Welcome to a different kind of healthcare experience. As a seasoned Registered Dietitian Nutritionist, Candice listens to your story, understands your unique needs, and uses her functional medicine expertise to address the root causes of your health concerns.
Welcome to a different kind of healthcare experience. As a seasoned Registered Dietitian Nutritionist, Candice listens to your story, understands your unique needs, and uses her functional medicine expertise to address the root causes of your health concerns.
Comprehensive Nutrition Care for All Ages
Candice specializes in:
Digestive Health
- Chronic constipation and diarrhea
- Irritable Bowel Syndrome (IBS)
- Inflammatory Bowel Disease (IBD)
- Crohn’s Disease
- Small Intestinal Bacterial Overgrowth (SIBO)
Women's Health
- Infertility
- Polycystic Ovary Syndrome (PCOS)
- Pregnancy nutrition
- Gestational diabetes
- Menopause support
Pediatric Nutrition
- Growth and development concerns
- Childhood weight management
- Nutrient deficiencies
- Feeding difficulties
Food-Related Concerns
- Allergies
- Sensitivities
- Intolerances
- Food aversion
- Picky eating
Metabolic Health
- Diabetes
- Prediabetes
- High cholesterol
Thyroid Health
- Hypothyroidism
- Hashimoto’s disease
General Wellness
- Nutrition resets for when you feel out of sync with your body
Whether you’re dealing with a specific condition, seeking support for your child’s nutrition needs, or simply looking to optimize your overall health, we’re here to create a tailored nutrition plan that addresses your unique needs and goals.

Proven Impact
of Customized Nutrition
We are committed to helping you achieve lasting results through realistic and sustainable plans that fit your lifestyle. Our approach is designed to:
Enhance Overall Wellbeing
Support Weight Management
Achieve and maintain a healthy weight, develop sustainable eating habits.
Optimize Health Metrics
Normalize blood sugar levels, improve cholesterol profile, thyroid support, correct vitamin and mineral levels.
Nurture Women’s Health
Support your body through various life stages, promote fertility and pregnancy health, optimize postpartum recovery, navigate hormone imbalances, regulate gestational diabetes.
Expand Dietary Horizons
Overcome food aversions, introduce new nutritious foods to your diet.
Elevate Family Nutrition
Improve overall nutrition quality for you and your loved ones, develop strategies for convenient and healthy family meals.
Phoenix Children's Hospital
Children's Development Center
Southwest Human Development
What to Expect
Your Journey Begins Here
At our practice, we understand that nutrition is deeply personal. It’s not just about what you eat, but how you think and feel about food. That’s why we don’t believe in one-size-fits-all solutions. Instead, we take the time to understand YOUR unique needs, preferences, and goals to create realistic and personalized solutions for your nutrition and health concerns.
Here’s what you can expect when you work with us:
1
Comprehensive Virtual Consultation
- Detailed evaluation of your health history
- Review of medical records and laboratory studies
- Discussion of your specific questions and concerns
2
Personalized Nutrition Education
- Evidence-based information, simplified for easy understanding
- Tailored to your individual health needs and goals
3
Realistic Nutrition Plan
- Designed to start your healing and rebalancing process
- Focused on sustainable success
4
Customized Follow-Up Plan
- Ongoing support tailored to your progress and needs at each follow-up appointment

Meet Candice
Registered Dietitian Nutritionist
Candice is a distinguished food and nutrition expert who transforms complex nutrition science into practical, achievable solutions for healthier living. With over 15 years of clinical experience and extensive training in metabolism, medical nutrition therapy, and Integrative and Functional Medicine, Candice offers a unique blend of expertise to her clients.
Education and Credentials
- Master of Science in Nutrition and Dietetics (Magna Cum Laude)
- Bachelor of Science in Nutrition and Dietetics (Summa Cum Laude)
- Registered Dietitian Nutritionist (RDN)
- Functional Medicine training from the Institute of Functional Medicine
- Member of the Academy of Nutrition and Dietetics
- Sought after presenter and educator
Professional Experience
- Phoenix Children’s Hospital — Metabolic Dietitian (Genetics) — 4 years
- University of Arizona Andrew Weil Center for Integrative Medicine — 2 years
- Southwest Human Development — Pediatric Nutrition Feeding Specialist — 9 years
- Maricopa OBGYN—Women’s Health Nutrition Specialist — 8 years
Meet Candice
Registered Dietitian Nutritionist
Candice is a distinguished food and nutrition expert who transforms complex nutrition science into practical, achievable solutions for healthier living. With over 15 years of clinical experience and extensive training in metabolism, medical nutrition therapy, and Integrative and Functional Medicine, Candice offers a unique blend of expertise to her clients.
Education and Credentials
- Master of Science in Nutrition and Dietetics (Magna Cum Laude)
- Bachelor of Science in Nutrition and Dietetics (Summa Cum Laude)
- Registered Dietitian Nutritionist (RDN)
- Functional Medicine training from the Institute of Functional Medicine
- Member of the Academy of Nutrition and Dietetics
- Sought after presenter and educator
Professional Experience
- Phoenix Children’s Hospital — Metabolic Dietitian (Genetics) — 4 years
- University of Arizona Andrew Weil Center for Integrative Medicine — 2 years
- Southwest Human Development — Pediatric Nutrition Feeding Specialist — 9 years
- Maricopa OBGYN—Women’s Health Nutrition Specialist — 8 years
Harmonize Your Health With Metabolic Zen
Candice’s Approach
Working one-on-one with patients, Candice uncovers the root causes of health conditions and designs individualized nutrition plans to restore balance. She takes a holistic approach, considering all aspects of a client’s health and lifestyle.
Collaboration is at the heart of Candice’s practice. She actively works with her clients’ other healthcare providers, including primary care physicians and specialists, to ensure comprehensive care. If a client needs services outside her scope of practice, she will provide appropriate referrals to ensure you receive the best possible care.
Whether you’re managing a specific condition or simply aiming to improve your overall health, Candice’s personalized and collaborative approach can help you achieve your wellness goals.
Frequently Asked Questions
What is Metabolic Zen?
Metabolic Zen was born from the belief that simplicity and nutrition can co-exist to create a harmonious experience in the way we eat, think about, and utilize food. There is no shortage of trends, misinformation, and marketing that promise to make you “healthy” and deliver “real results”.
Metabolic Zen offers something entirely different. Candice takes a bold, evidence-based approach to nutrition by carefully deciphering our bodies’ needs and translating them into real whole food recommendations we can all understand and implement. She understands that sometimes our bodies and minds don’t always cooperate the way we would like, but with a little nutritional creativity, science, and compassion she can resolve your complex eating, feeding, performance, and physiological concerns.
The best part is, together, you and Candice will attain sustainable, honest, and realistic results! Let Candice help you, your child, or your family achieve Metabolic Zen, bringing harmony back into your eating and feeding, and into your life.
How do Virtual Appointments Work?
For your convenience, all appointments are Virtual.
Set up is as easy as 1, 2, 3
1. Download the Healthie App from your app store or visit Healthie on your Desktop.
2. Set up your account, fill out the required documents, upload any relevant labs/notes/tests
3. Candice will call you at the time of your appointment
Insurance and Billing
We strive to make our nutrition services accessible while maintaining the highest quality of personalized care. Here’s what you need to know about payment and insurance:
- FSA/HSA Accepted: We can accept Flexible Spending Account (FSA) and Health Savings Account (HSA) cards for services with a supported medically necessary diagnosis.
- Superbill for Insurance Reimbursement: After your paid session, we will provide you with a Superbill and all necessary supporting documentation. This allows you to submit a claim to your insurance provider for potential reimbursement if you have Medical Nutrition Therapy coverage.
- What is a Superbill? A Superbill is a detailed receipt of services provided, which you can submit to your insurance company.
- Reimbursement: The reimbursement rate is determined by your individual insurance provider. Please note that we cannot guarantee any specific reimbursement amount.
- Submitting for Reimbursement: It is the client’s responsibility to submit the Superbill and follow their insurance company’s protocol for reimbursement.
We recommend checking with your insurance provider about your specific coverage for Medical Nutrition Therapy before your appointment.
For any questions about payment or insurance, please don’t hesitate to contact us.
Supplement Shop Links
As the nutrition supplement industry in the United States is not regulated, we strongly recommend utilizing science-based/professional grade products that we can be confident in. When we prescribe supplementation, it is to regulate biochemistry, and it is important that the body be actually getting what is needed.
