About Us

Jonathan Burg & Julie WeaverAfter graduating medical school at the University of Miami, Dr Burg completed full three year residencies in Internal Medicine at the University of Arizona and Physical Medicine and Rehabilitation at the University of Washington. During his training he pursued basic research in the areas of neurochemistry and connective tissue enzymology with grants from the American Heart and American Lung Associations. In 1983 he published his neurochemistry findings in Science, the premier scientific journal of The American Academy of the Sciences, the first to ever do so from his alma mater.

After over a decade of practicing musculoskeletal medicine and interventional spine, Dr Burg began dabbling in nutritional medicine particularly as it related to his pain practice. In 2006, while lecturing on Omega3s and neurologic dysfunction at a national wellness conference, he met Julie Weaver, who was lecturing on the use of Bioelectrical Impedance in the clinical weight loss arena.

Ms Weaver’s background includes building several multi million dollar businesses in the retail and direct marketing industries. She has over 25 years of experience in sales and marketing with the last 12 years as a trainer of weight loss coaches for an international nutraceutical company. Upon representation of a bioelectrical impedance manufacturer, Ms Weaver developed a system incorporating these components into a successful in house weight management and wellness program for primary care medical practices.

Combining their expertise and passion Dr Burg and Ms Weaver created Cornerstone Wellness to focus on the creation of an evidence based, state-of-the art, turnkey weight management programs within existing medical practices in every clinical speciality. Cornerstone expanded rapidly and within a decade there were over 1000 physicians using the program in every clinical specialty. Using Dr Burg’s extensive background in protein biochemistry he developed a focused and proven synergistic nutraceutical approach to address the underlying cause of metabolic syndrome and Type II diabetes ie excess visceral adiposity. Dr Burg and Ms Weaver utilized proprietary bioelectrical impedance technology, developed at the USC School of Medicine and integrated it into a robust cloud-based Cornerstone lifestyle management program. This extraordinary system has been successfully utilized by hundreds of thousands of patients with certifiable clinical responses in motivated individuals. Ms Weaver has trained all of the Cornerstone Wellness coaches, typically on-site, in physicians offices throughout the nation. Within several days, with very little expense, physicians can have a fully functional, integrated, evidence-based and quite profitable program to address the obesity epidemic in their practice.

Our Partners

International Vitamin Corporation


The Cornerstone High Protein Meal Replacement is manufactured at International Vitamin Corporations half million square foot plant in Mira Loma, CA. IVC is the second largest supplement manufacturer in the US and has won dozens of awards from the FDA’s Good Manufacturing Program (GMP) for its production and laboratory procedures. The IVC plant in Mira Loma is well known for its excellence in production of protein powders which is why we make the Cornerstone shake there.

United Pharma

United Pharma, LLC

This exclusive soft-gel manufacturer in Southern California is where the ultra- pure pharmaceutical grade OmegaHealth is manufactured. It is GMP-NSF certified by the FDA . United Pharma specializes in soft gel manufacturing exclusively so patients can feel comfortable that they are obtaining a uniform product in which the ultra pure omega3 oil from Croda, the finest in the world, is made into soft-gels. All the raw ingredients and finished soft-gels are tested extensively for contaminants both chemical and bacteriologic before they are bottled in cobalt blue glass jars and shipped to physicians.



The British company Croda, established in 1925, is the oldest manufacturer of Omega3 oil and was the first to be awarded the International Fish Oil Society’s 5 star award. Their Incromega oil is the finest in the world which is why Cornerstone chose to use it for their supplement. Utilizing the PureMax proprietary triple distillation process (other oils use single) and nitrogen blanket processing which prevents oxidation resulting in the purest and best tasting Omega3 available

Robinson Pharma, Inc,

Robinson Pharma, Inc.

Cornerstone’s MetAssist is manufactured at Robinson Pharma, Inc., a contract supplement manufacturer with production faclities located in Orange County CA.. Robinson Pharma holds more independent certifications for the FDA’s GMP (Good Manufacturing Practices) than any other contract manufacturer in the United States and produces over 4 billion solid-dose solutions (tablets, capsules and powders) with 3 blending suites and 19 production suites (7 tablet compression and 12 capsule filling).

USC Division of Biokinesiology and Physical Therapy

USC Division of Biokinesiology and Physical Therapy

The original Cornerstone BC IV and DEXA-based bioimpedance algorithm was developed and tested at this laboratory on the campus of the USC Health Sciences, under the guidance of Ted Schroeder PhD, where the world renown Keck School of Medicine is located. In its annual national rankings, US News and World Reports has placed this USC Division first every year since 2004.