Today, Dr. Ryerson handles a great deal of the daily operations of the company, educational content, product development and art direction. Learn more about Devin

Dr. Larson earned a Doctor of Chiropractic degree from Southern California University of Health Sciences (Los Angeles College of Chiropractic), graduating with honors. He is a Certified Clinical Nutritionist by the Clinical Nutrition Certification Board and is a member of the Institute for Functional Medicine, the International and American Association of Clinical Nutritionists, and the American Chiropractic Association. The Commission of the National Strength and Conditioning Association also recognizes Dr. Larson as a Certified Strength and Conditioning Specialist. He is a Supervising Clinician for the Division of Clinical Internship for Southern California University of Health Sciences.

He frequently lectures to groups on various health-related topics and was the co-host of the Optimal Wellness Radio Show on KCBQ – AM 1170 and KCBQ.com. The show offered alternative and integrative solutions to the conventional medical model and challenged the effectiveness of our current HMO-driven healthcare system. He has also been a featured guest on several different radio shows. In addition to radio, Dr. Larson has been featured on various television news programs. He also frequently writes articles that have been published in a range of journals and magazines.

In addition to his clinical experience, Dr. Larson is the Director of Nutrition for Pure Prescriptions™, Inc., where he has published numerous articles on various health topics and conditions. He also offers solutions and consultations in the “Q&A With Dr. Larson” section at PurePrescriptions.com. Recently, he was asked to join the R & D team at Iagen Biologics™, a therapeutic nutritional development company currently producing several unique formulations.

A native of Southern California, Dr. Larson has lived in San Diego for over 30 years, with the exception of college at the University of California Santa Barbara and graduate school in Los Angeles. He currently resides in the northern part of San Diego County with his wife Nicole, and their two sons Nicholas and Christopher.

During that time, her son and husband both developed different types of cancer. At that time, there wasn’t a whole lot of information available regarding alternative medicine. When they were in treatment, their immune systems were greatly compromised. Her son made it through with a remission, but her husband of 31 years died from sepsis (infection). She felt that if his immune system had been stronger, he could have better fought the ravages of chemo/radiation therapy.

As a result, Nancy’s mission is to provide and share information that may be helpful to others. She enjoys working at Pure Prescriptions, especially talking with customers and hearing how the products have helped them to feel better.

As our resident "tree hugger" and dog lover, Betsy grew up in Northern California and brings a fresh, humble and practical approach to the organization. Betsy is a strong proponent of a healthy, organic and sustainable lifestyle. As a matter of fact, along with Patagonia's Yvon Chouinard, Al Gore and many others, it is Betsy's influence that initiated Pure Prescriptions' Global ReLeaf involvement and the use of sustainable, vegetable based materials for packaging.

Wholesale Information and Application

He is a nature lover and respects the rights and ambitions of all living beings. His philosophy is simple, “live and let live”. He too is a vegetarian and depends a lot on natural supplements.