Finding the right support for your health journey can feel overwhelming, but these five functional nutritional therapy providers offer personalized, root-cause approaches to help you thrive. From hormone balance to fertility prep, these specialists are making waves in the wellness
What is Functional Nutritional Therapy?
Functional nutritional therapy goes beyond standard dietary advice by examining the interconnected systems of your body. These practitioners focus on identifying the root causes of imbalances—such as digestive issues, hormonal fluctuations, or chronic fatigue—rather than just masking symptoms. By using bio-individual nutrition, lifestyle adjustments, and targeted supplementation, they help you restore your body's innate ability to heal and function optimally.
How we vetted these providers
We selected these providers based on their specialized focus on women's health, their commitment to evidence-informed functional practices, and their reputation for providing personalized, one-on-one support. Each featured business is a solo practice or small, specialized team that prioritizes a deep-dive, root-cause approach rather than one-size-fits-all solutions.
A quick look at the top functional nutrition experts helping women take control of their health.
| Provider | Best For | Pricing |
|---|---|---|
| Jillian Greaves Functional Nutrition & Wellness | PCOS and hormone balance | Custom quote |
| Healthfully Nourished | Fertility and gut health | Starting at $2,400 |
| Functional Fueling Nutrition | Active women and hormone performance | Custom quote |
| Alexandra Radway Functional Nutritional Therapy | Pre-pregnancy and fertility preparation | Starting at $97 |
| Ashley Koch Nutrition and Wellness | Family and pediatric foundation health | Custom quote |
The 5 Best Functional Nutritional Therapy Providers in 2026
#1 Jillian Greaves Functional Nutrition & Wellness
A screenshot of the Jillian Greaves Functional Nutrition & Wellness website.
Jillian Greaves is a registered dietitian and functional medicine specialist who excels at helping women navigate complex hormone and digestive issues. Her practice, Jillian Greaves Functional Nutrition & Wellness, uses a root-cause framework that includes advanced lab testing and evidence-informed strategies. She is particularly well-known for her structured programs, such as the PCOS Root Reversal, which offer women a clear, actionable path toward symptom remission. Her team focuses on pragmatic, lifestyle-first interventions that fit into busy, modern lives.
Key Service Focus:
- Pro: Evidence-informed, data-driven approach using advanced lab testing.
- Con: High demand for her signature programs can lead to waitlists.
- Pricing: Custom quote
#2 Healthfully Nourished
A screenshot of the Healthfully Nourished website.
Founded by Taryn Mattern, Healthfully Nourished provides a compassionate, virtual space for women to address gut health and fertility challenges. Taryn specializes in helping women get to the root of frustrating imbalances, aiming to optimize fertility and decrease miscarriage risk through personalized nutrition. Many clients value her weight-inclusive approach, which emphasizes internal health and confidence over restrictive dieting. Her practice is highly regarded for its focus on the mind-body connection in healing.
Key Service Focus:
- Pro: Strong focus on fertility optimization and miscarriage risk reduction.
- Con: Does not accept insurance directly.
- Pricing: Starting at $2,400
#3 Functional Fueling Nutrition
A screenshot of the Functional Fueling Nutrition website.
Lauren Papanos, the founder of Functional Fueling Nutrition, brings a unique performance-based perspective to functional medicine. As a registered dietitian and sports dietetics specialist, she helps high-performing women manage chronic inflammation, complex hormone conditions, and exercise performance. Her practice is built on a decade of experience and thousands of successful patient cases, utilizing a rigorous lab-driven approach. She is also a recognized voice in the industry through her Strength in Hormones podcast.
Key Service Focus:
- Pro: Integrates sports nutrition expertise with functional hormone healing.
- Con: Primarily focused on high-performance and complex cases.
- Pricing: Custom quote
#4 Alexandra Radway Functional Nutritional Therapy
A screenshot of the Alexandra Radway Functional Nutritional Therapy website.
Alexandra Radway is a functional nutritional therapy practitioner with a specialized focus on elite pregnancy preparation. Her platform, Alexandra Radway Functional Nutritional Therapy, encourages women to reconnect with their body's innate intelligence to support fertility and motherhood. She offers resources like the Baby Ready Body Method, which emphasizes non-toxic living, circadian rhythm alignment, and targeted nutrient support. Her approach is highly individualized, catering to women who want to take a proactive, holistic role in their preconception journey.
Key Service Focus:
- Pro: Unique, comprehensive focus on the 'zero trimester' and pregnancy prep.
- Con: Some recommendations are highly unconventional and may not align with all medical perspectives.
- Pricing: Starting at $97
#5 Ashley Koch Nutrition and Wellness
A screenshot of the Ashley Koch Nutrition and Wellness website.
Ashley Koch, MS, CNS, operates Ashley Koch Nutrition and Wellness as a hub for investigative, root-cause functional nutrition. She focuses on identifying inflammatory triggers, microbiome dysfunction, and immune health concerns that affect adults and families. Her practice is deeply rooted in her own journey of overcoming chronic health conditions through lifestyle shifts rather than medication alone. She is particularly passionate about early nutrition, helping families build healthy foundations for long-term well-being.
Key Service Focus:
- Pro: Strong emphasis on family-wide wellness and long-term health education.
- Con: Limited availability for new clients due to focused practice scope.
- Pricing: Custom quote
How to choose your nutritional partner
Start by identifying your primary goal—are you struggling with digestive issues, planning for pregnancy, or dealing with chronic fatigue? Look for a practitioner whose clinical specialty matches your specific needs. Always verify their credentials and ask about their testing process during an initial consultation to ensure their approach aligns with your personal comfort level and health philosophy.
Streamlining your health journey
Many of these practitioners utilize digital patient portals to streamline lab results, meal planning, and communication. Before you begin, ask how they handle data and if they use integrated apps to help you track your progress. This ensures that you spend less time managing paperwork and more time focusing on your nutritional protocols.
Your next steps
Investing in your health through a functional approach is a commitment to your long-term vitality. Whether you choose a specialist focused on fertility or one dedicated to digestive health, the key is consistency and open communication with your chosen practitioner. Take the time to book an initial consultation with one of these experts to see if their methodology resonates with your unique health history.