Participants randomized into the "Functional Medicine Health Coaching for Elimination Diet" arm will receive five remote health coaching sessions over 10 weeks in support of their progress through an elimination diet. All study arms will receive written elimination diet support materials.

Participants randomized into the "Self-guided Elimination Diet" group will engage with the elimination diet without health coaching. All study arms will receive written elimination diet support materials.

All participants will receive 5 coaching sessions to support them through the elimination diet.

First session: The foundation session is where the coach and participant begin to develop rapport and outline the participant's goals. This occurs before the start of the Elimination Diet for motivation, expectations, education, and preparation.

Second session: This can occur during week 1 of the elimination diet to support working through the implementation.

Third session: This session is recommended to occur during week 3 of the diet to prepare for the reintroduction of foods.

Fourth session: A session is recommended while the participant is reintroducing foods as this is typically the most difficult part of the diet as participants may be experiencing symptoms to reactive foods.

Fifth session: A wrap up session is recommended after all of the food re-introductions to support the participant with maintenance, goals to move forward, and reflection.

The PROMIS Global Health is a 10-item survey (PROMIS-10) is measure of health status that spans physical, mental, and social domains from the patient perspective, allowing clinicians and researchers to capture the complex and heterogeneous nature of the populations.

The Medical Symptoms Questionnaire is a multi-system inventory that rates symptom severity on a 0-4 scale. The MSQ has been used to track subjective responses of patients to treatment in both clinical and research settings.