For over 24 years, Jackie Belk has dedicated her career to helping patients feel heard, cared for, and truly supported in their health journey. Beginning her career as a critical care registered nurse, Jackie spent decades caring for patients in high-pressure hospital settings before advancing her education and becoming a Family Nurse Practitioner running her clinic for over 10 years now. 

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Today, as the founder of Affinity Functional Health, Jackie combines her extensive clinical experience with a functional medicine approach focused on understanding the why behind symptoms — not simply masking them.

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Jackie earned her Master of Science in Nursing from Maryville University and holds board certification as a Family Nurse Practitioner. She is also fellowship-trained through functional medicine education, allowing her to take a more in-depth and personalized approach to patient care.

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Throughout her years in healthcare, Jackie noticed a growing pattern: many patients were being told their labs were “normal” while they still struggled daily with fatigue, weight gain, hormone imbalance, brain fog, poor sleep, inflammation, low energy, digestive issues, and feeling unlike themselves. She created Affinity Functional Health to provide a more comprehensive, patient-centered experience for those seeking answers and long-term wellness support.

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Jackie has a special passion for helping women navigating perimenopause, menopause, metabolic health challenges, and ongoing symptoms that often go overlooked in traditional healthcare settings. Her approach focuses on understanding lifestyle, nutrition, stress, hormones, inflammation, and overall wellness to help patients feel empowered and supported throughout their health journey.

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Patients appreciate Jackie’s approachable personality, compassionate care, and ability to make complex health concerns feel understandable and manageable. She believes healthcare should feel collaborative, educational, and personalized — never rushed or one-size-fits-all.

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Whether you are struggling with low energy, difficulty losing weight, hormone-related symptoms, or simply know something feels “off,” Jackie’s goal is to help you take meaningful steps toward feeling your best again.

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Heal. Restore. Thrive.