About

NSI (Nutritional Specialities, Inc.), the parent company of the Professional Health Products^® brand, was founded by Peter Nudi, Sr. in Pittsburgh in 1978, and continues to be family-owned and operated there to this day. Since it’s start, NSI has believed in partnering directly with doctors, pharmacists, and other licensed healthcare practitioners to deliver innovative nutrition, backed by science, to patients and clients.

Peter started his career with his own office supply and printing business in the early 1970s. He developed excellent relationships with his clients, including a doctor who persuaded him to leave his business for the relatively new world of vitamins and supplements. In 1974, he entered the industry as a regional sales representative for NutriDyn, nutrition-based supplements.

He was so successful that in 1978 he moved on to Seroyal brands. Together, with his wife Kathleen, they founded Nutritional Specialties, Inc, NSI. They started out small, Peter on the road four to five days a week and Kathleen at home with the family, doing the shipping, receiving and invoicing in the evenings. Distributing in five states, they quickly became Seroyal’s largest distributor for over a dozen years.

In 1990 Peter left Seroyal after the sale of the company to ICN Pharmaceuticals to focus on NSI and the development of the Professional Health Products^® brand. Peter was motivated by the desire to formulate and produce high-quality supplements for the doctors and healthcare practitioners he had partnered with for the last 15 years. NSI has always been positioned for growth and innovation. That’s why NSI was one of the first companies to import and offer New Zealand glands and tissues. Peter guided the expansion of PHP from a handful of products sold in the United States, to nearly 400 with additional sales in Canada, Australia, England, New Zealand, South Korea, and more.

In constant pursuit of wanting to help others, he was introduced to Robert Miller, CTN, founder of the Nutrigenetic Research Institute. This introduction lead to a collaboration between Peter and Robert, creating PHP’s highly sought after product line, MethylGenetic Nutrition^®.

With Peter’s guidance, NSI will continue to grow and drive cutting-edge nutritional innovation that make a difference in peoples’ lives.

A graduate of La Roche University, Heather started her career at Nationwide Insurance where she inspected homes for insurability. From there she was recruited to Royal Canin Veterinary Diets, an M&M Mars Company. It was at Royal Canin where Heather’s career in the healthcare industry began. During her seven+ year tenure she rose to Sr. District Manager, providing the crucial link between veterinarians and superior nutrition for disease-state dogs and cats. Heather entered the tech world at athenahealth, where she managed a sales team and more than 200 distribution partners across 13 states. Her team played a critical role in the field, introducing and selling cloud-based healthcare solutions to physicians.

She joined her family’s business in 2018 with nearly 20 years of sales, marketing, and business development experience. She’s often found at conferences, trade shows, and seminars, acting as the face of Nutritional Specialties Inc., PHP^®. Her current priorities includes sales management, website and software enhancements, product rebranding, marketing, and new product development.

Dr. Kelly Halderman has a Naturopathic Medical Degree from Kingdom College of Natural Health where she is the current Academic Dean of Students. She previously completed a Family Practice Medicine internship with the University of Minnesota. Dr. Halderman holds certifications in Plant-Based Nutrition from Cornell University, MethylGenetic Nutrition from the Nutrigenetic Research Institute, and Functional Neurology and Neurofeedback from The American Functional Neurology Institute. She is currently working on completing her board certification in Clinical Nutrition. Her interests include detoxification, cancer, Chronic Lyme, and formulating superior nutraceutical products backed by cutting-edge science. Dr. Halderman lives in Minnesota, where she runs her own clinical practice.