Lisa discovered HTMA when she was desperately trying to get to the bottom of her chronic fatigue. It was then that she discovered that Copper Toxicity was what was holding her back, and the true root cause of her issues.

Dr. Richard N Olree Jr. D.C. Dr. Olree has been a Doctor of Chiropractic in practice in Northern Michigan for 45 years. He sees an average of 30 people every day. He also owns a health food store that not only serves the local clientele but ships anywhere within the US, Canada and any free country.

Sophie Shepherd is the founder of SHE Talks Health and a Functional Health Practitioner who helps women with Hashimoto’s, thyroid issues, and mystery symptoms like fatigue, bloating, anxiety, and brain fog find easy and sustainable ways to finally feel like themselves again.

In 1998, Micah Portney recognized an untapped natural resource for health benefits and began to research the science behind Zeolite technology. By 1999 he had founded ZEO Health Ltd., the first Zeolite supplementation manufacturer in the United States and second in the world (by 2 months).

Kaely McDevitt is a Registered Dietitian specializing in nutrition for women's health. She owns a virtual private practice where she and her team help their clients reclaim their energy, optimize fertility and overcome hormone symptoms through personalized nutrition. In addition to her work with clients she is a co-owner of Trace Elements, the internationally recognized provider of HTMA laboratory services and nutritional metabolic products.

Ryan Syverson is an HTMA mentor, clinical consultant, and founder of Ryan Syverson Coaching. After overcoming his own battle with Lyme disease and mold illness, Ryan dedicated his career to helping clients and practitioners decode the hidden patterns in labs that drive fatigue, pain, and chronic illness.

Kim Heintz is a functional health strategist and athlete who helps high performers unlock their true potential by uncovering the root causes of their health struggles. After spending decades battling chronic migraines, gut issues, debilitating fatigue, and poor sleep, while being told everything looked “fine”, she became her own health detective.

Vanessa Obagi is a Naturopathic Nutritional Therapist and one of Lisa Pitel-Killah’s Advanced HTMA Mentors, supporting practitioners worldwide in mastering mineral analysis. She also tutors the Clinical HTMA Education Course (Level 1), guiding students through the foundations of this tool with clarity and confidence.

Amber MacDonald, HTMA-P, NTP, MRWP, is a Functional Nutritionist passionate about root-cause healing. Guided by her own health journey, she specializes in Hair Tissue Mineral Analysis (HTMA) as a cornerstone tool to uncover mineral imbalances and stress patterns driving symptoms.

Since 2014, Rick has been at the global forefront for the advocacy of copper toxicity awareness, the advancement of mineral-based health education, and the preservation of authentic HTMA application. He is founder of the #1 education and support site for copper toxicity (www.coppertoxic.com), author of The Complete Copper Toxicity Handbook, as well as founder and instructor of the Mineral Mastery program.

Nina-Marie is a traditional naturopath, mom of three, and your partner in building a healthier family. When I’m not working with clients training clinicians in functional testing, you’ll find me hiking, soaking up the sun, or enjoying undistracted time with my husband and kids.

Dr. Robert Selig is a Functional Medicine practitioner and the founder of Back To Natural Health, a premier clinic in Chicago's Lincoln Park. With a career spanning over three decades, he has developed a specialized focus on resolving complex, chronic conditions through advanced nutritional biochemistry and metabolic analysis.

Dr. Rick Malter, (AKA "Magnesium Man,"), credits HTMA testing with saving his life over 40 years ago. In 1980, while suffering from severe hypoglycemia and exhaustion, Dr. Candelaria, a colleague, alerted him to the cardiovascular risks of severe magnesium deficiency.

Rachel is a spiritual teacher, energy healer, and empowerment coach with over 50 years of experience. An early pioneer in Hair Tissue Mineral Analysis (HTMA), she blends functional nutrition, Applied Kinesiology, and advanced healing techniques to help clients restore balance and well-being. She also leads the Mineral Sanity & Health community and hosts the In Conversation series on mineral balancing.