What Is Integrative Medicine?

A Look at Dr. Andrew Weil’s Definition and Dr. Lisa Mainier’s Approach

Integrative medicine is a growing field that blends the best of conventional medical care with a thoughtful, evidence-based use of complementary approaches. At Salus Integrative Medicine in Erie, PA, Dr. Lisa Mainier practices integrative medicine with a focus on prevention, whole-person care, and empowering patients to take an active role in their health.

But what exactly is integrative medicine—and how does it differ from alternative or conventional medicine?

Dr. Andrew Weil’s Definition

Dr. Andrew Weil, a pioneer in the field, defines integrative medicine as:

“Healing-oriented medicine that takes account of the whole person, including all aspects of lifestyle. It emphasizes the therapeutic relationship and makes use of all appropriate therapies, both conventional and alternative.”

This approach doesn’t replace conventional care—it complements it. Integrative medicine is rooted in science, supported by research, and delivered in a patient-centered manner. It respects the value of medications and procedures when needed, while also exploring less invasive, preventive strategies to support long-term wellness.

Key Principles of Integrative Medicine

Whole-person care: Body, mind, and spirit are all part of the healing process.
Evidence-based practice: Therapies are recommended based on clinical evidence, not fads.
Prevention-focused: Addressing risk factors and supporting the body’s natural resilience is central.
Patient-provider partnership: The patient is actively involved in their care plan.
Healing environment: The therapeutic relationship itself is considered part of the medicine.

How Dr. Lisa Mainier Applies Integrative Medicine in Practice

Dr. Lisa Mainier applies this approach every day at her Erie-based practice by combining conventional diagnostic tools with lifestyle-focused strategies that help patients thrive.

Her clinical focus areas include:

PCOS and insulin resistance: Supporting hormone balance, metabolic health, and fertility through personalized care, nutrition, and targeted interventions.
Metabolic and cardiovascular prevention: Helping patients reduce their risk of heart disease and chronic illness through personalized nutrition, supplements, and evidence-based lifestyle interventions.
Hormonal health and menopause: Offering support and treatment for hormone imbalances, including bioidentical hormone therapy when appropriate.
Gut health and the microbiome: Addressing digestive issues and optimizing gut function as a foundation of overall wellness.
Perimenopause and menopause care: Providing comprehensive support for women transitioning through midlife with a focus on vitality and long-term health.
Stress, sleep, and mood balance: Integrating lifestyle changes, mind-body practices, and targeted therapies to promote emotional and physical resilience.

Dr. Mainier takes time to understand the full context of a patient’s life—not just lab results or symptoms. Whether it’s advising on dietary changes, evaluating supplement use, or adjusting lifestyle habits, her approach is rooted in respect, compassion, and a belief in the body’s innate ability to heal when supported properly.

Experience Integrative Medicine with Dr. Mainier

If you’re looking for a physician who blends science and lifestyle medicine in a way that prioritizes prevention and healing, Dr. Mainier is currently welcoming new patients in Erie, PA. Her practice is ideal for individuals seeking a deeper understanding of their health and a collaborative relationship with their doctor.

Contact Salus Integrative Medicine today to learn how integrative medicine can support your long-term well-being.